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अध्याय F – ऊर्जा

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BHAGIRATHI ECO-SENSITIVE ZONE DISTRICT: UTTARKASHI ZONAL MASTER PLAN FOR
POWER SECTOR

ENERGY DEPARTMENT, GOVERNMENT OF UTTARAKHAND

1 INDEX

Sl.No. Title Page No. (A) GENERATION PLAN

LIST OF MICRO, MINI & SMALL HYDRO PROJECTS 3 2. LOCATION MAP OF MICRO, MINI & SMALL HYDRO PROJECTS 4 3. TYPICAL LAYOUT PLAN OF MICRO, MINI & SMALL HYDRO PROJECTS
5 4. LIST OF PROJECTS UNDER OPERATION ON ESZ 6 5. LIST OF PROJECTS UNDER CONSTRUCTION ON ESZ 7 6. LIST OF PROJECTS UNDER IMPLEMENTATION ON ESZ 8 7. ROPOESD LIST OF MICRO AND MINI HYDRO PROJECTS IN ESZ 9 8. DETAILS OF MEETING HELD WITH VILLAGERS IN ESZ FOR FINALIZATION OF ZONAL MASTER PLAN 10 9. NECESSITY & JUSTIFICATION OF MICRO, MINI & SMALL HYDRO PROJECTS 11 10. PROPOSED STANDARD TO BE FOLLOWED FOR THE PROJECTS UNDER SURVEY & INVESTIGATION 12 11. PROPOSED STANDARD TO BE FOLLOWED FOR THE PROJECTS UNDER CONSTRUCTION 13 12. SCHEDULE OF IMPLEMENTATION OF THE PROJECT 14-21 13. OBSERVATIONS ON ESZ NOTIFICATION 22-23 14. DETAILS OF LAND REQUIREMENT 24-26 15. COMPLIANCE OF DIRECTIONS ISSUED BY MONITORING COMMITTEE
27 (B) MANERI BHALI HEP STAGE –I & II PLAN 28-45 (C) TRANSMISSION AND DISTRIBUTION PLAN 46-52 (D) PROJECT WISE DETAILS

SWARIGAD SMALL HYDRO PROJECT 53-61 2. LIMCHAGAD SMALL HYDRO PROJECT 62-70 3. ASIGANGA-I SMALL HYDRO PROJECT 71-92 4. ASIGNAGA-II SMALL HYDRO PROJECT 93-109

2 Sl.No. Title Page No. 5. KALDIGAD SMALL HYDRO PROJECT 110-120 6. PILANGAD-I SMALL HYDRO PROJECT 121-130 7. SONGAD SMALL HYDRO PROJECT 131-135 8. PILANGAD-II SMALL HYDRO PROJECT 136-138 9. KAKORAGAD SMALL HYDRO PROJECT 139-147 10. SIYANGAD SMALL HYDRO PROJECT 148-156 11. JALANDHARYGAD SMALL HYDRO PROJECT 157-166

LIST OF MICRO, MINI & SMALL HYDRO PROJECTS

(ALLOTTED BEFORE DATE OF ESZ NOTIFICATION)

Pilangad-I

(2250 KW)

UJVNL

Harshil

(200 KW)

UREDA

Kedar Ganga

(20 KW)

UREDA

Rudraganga

(150 KW)

UREDA

Assiganga – I

(4500 KW)

UJVNL

Assiganga – II

(4500 KW)

UJVNL

Kaldigad

(9000 KW)

UJVNL

Limachagad

(3500 KW)

UJVNL

Swarigad

(2000 KW)

– UJVNL 10. Songad

(7 MW)

-UJVNL 11. Pilangad-II

(4 MW)

-UJVNL 12. Siyangad

(11.50 MW)
-Harsil Hydro Ltd. 13. Kakoragad

(12.50 MW)
-Harsil Hydro Ltd. 14. Jalandharygad

(24 MW)

-Harsil Hydro Ltd.

4 Location of SHPs Sonegad SHP (2X3500 kW) (Proposed) Pilangad - I SHP (2X1125 kW) (Existing) Kaldigad SHP (2X4500 kW) (Under Construction) Pilangad - II SHP (2X2000 kW) (Proposed) Limchigad SHP (2X1750 kW) (Under Construction) Suwarigad SHP (2X1000 kW) (Under Construction) Asiganga-I SHP (2X2250 kW) (Under Construction) Asiganga-II SHP (2X2250 kW) (Under Construction) Siyangad SHP (2X5750 kW) (Under Implementation) Jalandharygad SHP (2X9250 kW)+(2x2750 KW) (Under Implementation) Kakoragad SHP (2X6250 kW) (Under Implementation)

5 TYPICAL LAYOUT PLAN OF SHPs

COMMISSIONED SMALL HYDRO POWER PROJECTS
FALLING UNDER ESZ

Pilangad-I

(2250 KW)

UJVNL

Harshil

(200 KW)

UREDA

Kedar Ganga

(20 KW)

UREDA

Rudraganga

(150 KW)

UREDA

TOTAL: 3.07 MW

UNDER CONSTRUCTION SMALL HYDRO POWER PROJECTS
FALLING UNDER ESZ

Assiganga – I

(4500 KW)

UJVNL

Assiganga – II

(4500 KW)

UJVNL

Kaldigad

(9000 KW)

UJVNL

Limachagad

(3500 KW)

UJVNL

Swarigad

(2000 KW)

UJVNL
```
    TOTAL: 23.50 MW
```

SHPS UNDER IMPLEMENTATION FALLING IN ESZ

Songad
(7 MW)

-UJVNL 2. Pilangad-II

(4 MW)

-UJVNL 3. Siyangad
(11.50 MW) -Harsil Hydro Ltd. 4. Kakoragad (12.50 MW) -Harsil Hydro Ltd. 5. Jalandharygad
(24 MW)

-Harsil Hydro Ltd. TOTAL: 59.00 MW

ROPOESD LIST OF MICRO AND MINI HYDRO PROJECTS IN ESZ

SN NAME OF THE PROJECT CAPACITY (MW) DISTRICT RIVER VALLEY SUB- TRIBUTARY /GADERA NAME NAME OF AGENCY 1 Rano ki gad 0.04 Uttarkashi Bhagirathi Rano ki gad UREDA 2 Varuni ganga 0.08 Uttarkashi Bhagirathi Varuni gad
UREDA 3 Mundragad 0.05 Uttarkashi Bhagirathi Mundragad UREDA 4 Dharasu gad 0.07 Uttarkashi Bhagirathi Dharashugad UREDA 5 Nago 0.03 Uttarkashi Bhagirathi Nago UREDA 6 Nahrigad 0.12 Uttarkashi Bhagirathi Nahrigad UREDA 7 Nigad gad 0.04 Uttarkashi Bhagirathi Nigad gad UREDA Total
0.43

DETAILS OF MEETING HELD WITH VILLAGERS IN ESZ FOR FINALIZATION OF ZONAL MASTER PLAN

 As per the Point No. 02 (1) of ESZ Gazette Notification, Zonal Master Plan was to be made in consultation with the local people, particularly women within two years from the date of notification (18.12.2012).
 In compliance of District Magistrate letter no 5720 / 21-04 (2010-11) dated 09.15.2015, meetings were held at the different places with the local people to incorporate their suggestions/proposal in Zonal Master Plan.  UJVNL’s officials participated in the meetings but local people opposed the Gazette Notification and disrupted the meetings and suggestions/proposal could not be obtained for Zonal Master Plan. Meetings conducted for preparation Zonal Master Plan in ESZ

Sl No. Date & Time of Meeting Place of Meeting 1 22/09/2015 at 11:00 AM Harshil Inter College 2 24/09/2015 at 11:00 AM Junior High school Sunagar. 3 28/09/2015 at 11:00 AM Block Auditorium Room, Bhatwari 4 01/10/2015 at 11:00 AM Govt. Inter College Netala
5 03/10/2015 at 11:00 AM Govt. Inter College Gangori 6 05/10/2015 at 11:00 AM Suman Auditorium Room, Bhatwari

NECESSITY & JUSTIFICATION OF MICRO, MINI &
SMALL HYDRO PROJECTS

The development of new and renewable sources of green energy particularly hydropower, has become a global priority. For many developing countries like India, the generation of electric power from small hydro power plants provide a option for providing reliable source of energy for economic development of country. Huge & fast consumption of fossil fules is a severe problem to the developing world. Reserves of fossile are decreasing day by day. As such renewable energy resources are very important for upcoming generation of the world. Strategies for exploitation of renewable energy constitute a major part of the policies which aim at reducing dependence on fossil fuels to satisfy the growing demand for energy. In developing countries like India, particularly those short of fossil fuel resources, the renewable resources of energy constitute a promise for meeting part of the future energy at a reasonable price and by accelerating the process of development in rural areas. Hydro Power is an important renewable resource of energy and water resources in India is sufficient to meet the major energy demands of the future. Hydro Power is pollution free & clean energy. Structures of Small Hydro Power plant are very small. Therefore, their construction does not affect the environment and they take less time for their construction. For construction of small hydro Power plants no reservoir is to be constructed and negligible rehabilitation occurs. The small hydro power Projects are run-off the river scheme. They donot affect any wildlife and the environment and also there is no possibility of submergence of any forest property, agriculture land.
Construction of the Small Hydro Projects is completed under the supervision of experienced technical experts and inconformity with the approved standards. The technology for Small Hydro Power plants is available in India itself and therefore, it helps in the economic growth of India. Due to construction of these plants, local population is benefited in the form of enhanced job opportunities and further their power requirements are met. Hence construction of Small hydropower Projects is an important step towards fulfilling State's energy requirement & towards enabling economic empowerment of the State.

PROPOSED STANDARD TO BE FOLLOWED FOR THE PROJECTS UNDER SURVEY & INVESTIGATION STAGE IN ESZ

 For site selection, survey and investigation in SHPs, temporary bridal paths shall be constructed in the Project area. Cutting of trees may be minimum as per the site requirement in unavoidable situations. The survey pedestrian routes shall be absolutely temporary and will be used only for survey/ investigation work.  While fixing alignment of the project, it will be ensured by project authority that no population is required to be rehabilitated due to construction of the project.
 The rights and privileges of the residents of the project area shall not be affected due to construction of the Project and construction may only be started after obtaining formal approvals from the residents as per laid down rules.
 During construction or operation of the project local residents shall be given priority in employment according to their qualifications.
 During alignment of the Project Component, loss of vegetation cover shall be avoided or it shall be kept minimum.
 Demolition of any natural heritage site shall be avoided during construction of and its pedestrian routes shall also be protected in its natural state.  The project alignment shall not be proposed in landslides area and fault zone.  In the design for construction of hydraulic structures, the Indian Standards & Specifications shall be followed in such a manner so that stability of the hill slopes is not jeopardized.
 It shall be ensured that 20% of average flow of lean period or as stipulated by State/Central Govt. shall be released in the river continuously from ecological and environmental point of view so that bio-diversity and aquatic environment is protected.  Services of experts for environment protection and pollution control shall be taken during project implementation and it shall be ensured that periodic inspection reports of experts are submitted to Pollution Control Board timely.
 To acquire an adequate discharge for generation of the power, the construction of Diversion Structure shall be done in such a manner that the natural boundaries of the river are not affected and no reservoir shall be formed due to structures.

PROPOSED STANDARD TO BE FOLLOWED FOR THE PROJECTS UNDER CONSTRUCTION

 Construction of water conductor system at the project site shall be preferred where the excavation work will be minimum. Surface Channel shall be constructed in the water conductor system for the mild/moderate slope and small tunnels for the steep slope.  Construction material required for construction work such as stone, sand and aggregate etc shall be used by transport only from pre-approved mines. No excavation/mining shall be done for the requirement of the above material at the site.
 Stone/Boulder/Sand obtained from the excavation of structures etc. shall be used for construction of project. The portable small stone crusher shall be established at the site after obtaining required permission to meet requirement of aggregate through crushing stones/boulders obtained from the excavation.
 Material excavated from construction shall be used for construction only and unused material/debris shall be dumped only at the places indentified for Muck Dumping Yards with treatment for providing vegetative cover.
 Use of heavy explosives shall be prohibited during Project construction and controlled blasting shall be used under guidance of the expert including monitoring of the vibration due to blasting.  For disposal of natural and seasonal water discharge in Project Area, construction of drains shall be made where ever required. Flow resulting from the drains will be connected with natural drainage flow/river flow.
 The treatment for hill slopes shall be carried out in the project area near project components so as to provide stability and avoid erosion. Protective works shall be undertaken on the suggestions from technical/ geological experts.
 Sewerage Treatment Plant (STPs) shall be constructed for the treatment of effluent from the Power Plant & Colony area.

SCHEDULE OF IMPLEMENTATION OF THE PROJECT

21 Schedule of Implementation of Siyangad SHP (11.50MW) Project implementation schedule will be determined after final directions of Hon’ble Supreme Court of India in matter of Alaknanda Hydropower co. Ltd vs Anuj Joshi & Others in Case no 6736 of 2013 for review of 24 Hydropower Projects in Alaknanda_Bhagirathi River Basin. Commissioning from start of construction on ground was earlier estimated 3years, after receipt of all clearances, financial closure, and land transfer.

Schedule of Implementation of Kakoragad SHP (12.50MW) Project implementation schedule will be determined after final directions of Hon’ble Supreme Court of India in matter of Alaknanda Hydropower co. Ltd vs Anuj Joshi & Others in Case no 6736 of 2013 for review of 24 Hydropower Projects in Alaknanda_Bhagirathi River Basin.Commissioning from start of construction on ground was earlier estimated 3years, after receipt of all clearances, financial closure, and land transfer.

Schedule of Implementation of Jalandharygad SHP (12.50MW) Project implementation schedule will be determined after final directions of Hon’ble Supreme Court of India in matter of Alaknanda Hydropower co. Ltd vs Anuj Joshi & Others in Case no 6736 of 2013 for review of 24 Hydropower Projects in Alaknanda_Bhagirathi River Basin. Commissioning from start of construction on ground was earlier estimated 3years, after receipt of all clearances, financial closure, and land transfer.

22 OBSERVATIONS ON ESZ NOTIFICATION

 Prior to ESZ Notification, Status of SHPs falling under ESZ are as under: (A) Under Construction:

(B) Under Implementation and/or Clearance:

SN Name of Project Capacity (MW) 1 Son Gad 7.50 2 Pilangad- II 4.00 3 Jalandharigad 24.00 4 Kakoragad 12.50 5 Syangad 11.50

Sl.No Name of Project Capacity (MW) 1 Limchi Gad 3.50 2 Suwari Gad 2.00 3 Assiganga-I 4.50 4 Assiganga-II 4.50 5 Kaldigad 9.00

OBSERVATIONS REGARDING BHAGIRATHI ESZ NOTIFICATION

 SHPs (below 25MW) under construction/implementation or allocated to developers prior to ESZ Notification would not be covered with retrospective effect under prohibited category.
 MOEF & CC vide OM dt 20.12.2013 on the Western Ghats Eco-sensitive Area has clarified that Prohibited Category of Projects /Activities which have applied for Environmental Clearance before date of listing HLWG Report on MOEF&CC website would not be by covered by the prohibition. All such prior projects would continue to be implemented as per the rules and guidelines prevailing at the time of submission of their applications.  SHPs (below 25MW) come under Green Category of CPCB/Uttarakhand Pollution Control Board. Furthermore, Environmental Clearance is not applicable for SHPs due to low its impact.
 MOEF & CC’s Guidelines dt 9.2.2011 for declaring Eco-sensitive Zones around National Parks & Sanctuaries states that ESZ should be “Regulatory” and not “Prohibitory”. Guidelines do not include Small Hydro Power Projects in Prohibited category.

24 DETAILS OF LAND REQUIREMENT

SL.NO. PROJECT NAME TYPE & AREA OF LAND REQUIREMENT LAND STATUS 1 SWARIGAD SMALL HYDRO PROJECT A) CIVIL SOYAM LAND – 2.934 Ha. B) NAAP LAND- 0.198 Ha. C) TOTAL LAND - 3.132 Ha.

IN PRINCIPAL APPROVAL OF CIVIL LAND 2.934 Ha HAS BEEN OBTAINED ON JUNE, 2013 & COMPLIANCES OF CONDITION LAYDOWN BY MOEF HAS BEEN COMPLIED AND FORMAL APPROVAL IS AWAITED.
NAAP LAND OF 0.198 Ha PURCHASED FROM THE OWNER THOROUGH MUTUAL NEGOTIATION
2 LIMCHAGAD SMALL HYDRO PROJECT RESERVE FOREST LAND – 4.275 Ha.
LEASE DEED OF 0.9875 Ha HAS BEEN DONE ON APRIL, 2006
LAND CASE OF ADDITIONAL LAND 3.288 Ha HAS BEEN SUBMITTED AT NODAL OFFICE DEHRADUN ON MARCH, 2013 3 ASIGANGA-I SMALL HYDRO PROJECT RESERVE FOREST LAND – 2.162 Ha.
FINAL APPROVAL OF .923 Ha HAS BEEN RECEIVED ON JUNE, 2012
FINAL APPROVAL OF 1.239 Ha HAS BEEN RECEIVED ON MARCH, 2014.

25 SL.NO. PROJECT NAME TYPE & AREA OF LAND REQUIREMENT LAND STATUS 4 ASIGNAGA-II SMALL HYDRO PROJECT A) RESERVE FOREST LAND – 2.302 Ha. B) ADDITIONAL RESERVE FOREST LAND – 1.103 Ha. C) TOTAL – 3.405 Ha.

FINAL APPROVAL OF 0.719 Ha HAS BEEN RECEIVED ON JUNE, 2000
FINAL APPROVAL OF 1.583 Ha HAS BEEN RECEIVED ON AUGUST, 2010
LAND CASE OF ADDITIONAL LAND 1.103 Ha HAS BEEN SUBMITTED AT NODAL OFFICE DEHRADUN ON FEBRUARY, 2013
5 KALDIGAD SMALL HYDRO PROJECT D) RESERVE FOREST LAND – 2.351 + 1.685 = 4.036 Ha. E) CIVIL SOYAM LAND – 0.66 Ha. F) ADDITIONAL LAND – 1.147 Ha G) TOTAL – 5.843 Ha
FINAL APPROVAL OF 2.351 & 1.685 Ha HAS BEEN RECEIVED IN APRIL, 2008 & MARCH, 2010 RESPCTIVELY AND LEASE DEED FOR BOTH HAVE BEEN EXECUTED IN FEBRUARY, 2012
LAND CASE OF ADDITIONAL LAND 1.147 Ha HAS BEEN SUBMITTED AT NODAL OFFICE DEHRADUN ON JUNE, 2013
LAND CASE OF ADDITIONAL 0.66 Ha WAS SUBMITTED TO NODAL OFFICE DEHRADUN ON JUNE, 2013 6 PILANGAD-I SMALL NOT APPLICABLE COMMISSIONED ON

26 SL.NO. PROJECT NAME TYPE & AREA OF LAND REQUIREMENT LAND STATUS HYDRO PROJECT 2004 7 SONGAD SMALL HYDRO PROJECT NOT APPLICABLE
SURVEY AND INVESTIGATION WORKS UNDER PROGRESS 8 PILANGAD-II SMALL HYDRO PROJECT

9 SIYANGAD SMALL HYDRO PROJECT FOREST LAND- 4.990 Ha
FOREST CLEARANCE APPLICATION SUBJUDICE UNDER HON’BLE SUPREME COURT IN MATTER OF 24 HYDROPROJECTS. 10 KAKORAGAD SMALL HYDRO PROJECT FOREST LAND- 4.9675 Ha FOREST CLEARANCE APPLICATION SUBJUDICE UNDER HON’BLE SUPREME COURT IN MATTER OF 24 HYDROPROJECTS. 11 JALANDHARYGAD SMALL HYDRO PROJECT FOREST LAND- 13.2175 Ha FOREST CLEARANCE APPLICATION SUBJUDICE UNDER HON’BLE SUPREME COURT IN MATTER OF 24 HYDROPROJECTS.

COMPLIANCE OF DIRECTIONS ISSUED BY MONITORING COMMITTEE In compliance to the Directions received in the Meeting headed by Hon’ble Chief Secretary, Uttarakahand held on dated 21.11.2015 at Dehradun, further submission is as here under:

 The criterion of “Permitted Category” of Small Hydro Project Upto 02 MW capacity in the Eco Sensitive Zone seems technically irrelevant.
 The Design of any Hydro Power Project is done mainly on the basis of Available Head & Discharge of the River.  Capacity of the Project is calculated as per the formula given below:

P =8.47 x Q x H

Where P = Proposed Capacity of the Plant (in KW)

Q = Design Discharge of the Project (in Cumec)

H = Net Available Head (in Meters)  From the above formula, capacity of the Project is directly proportional to Q & H. Hence it is clear that for more discharge low head or for High Head Less discharge is required to achieve same capacity of the Project.
 For the design of Small Hydro Project of same capacity, less Discharge is required for High head. Therefore small structures of the Project shall be required due to less discharge.
 In the case of UJVNL, almost all the Small Hydro Projects are high head Projects (more than 100 m) and Projects are proposed on Small River/Gad (i.e. Tributary of the Main River) due to which structures of Projects are very small in sizes.
 Necessary measures with repect to safeguard the ecology & environment are already explained under the head of “proposed standard to be followed during construction of Small Hydro Project”.

Point wise compliance of directions is as under:

S.No Direction received Direction incorporated 1 Storing excess water flowing during monsoon only. Since SHPs are run off the river Projects, hence no storage of excess water shall be made during monsoon. 2 Allowing non-monsoon flow of water downstream of the project as usual. 20% water of average non-monsoon flows is released continuously at the downstream of the Project for the ecological and environmental point of view. 3 Providing fish ladder in the reservoir area so that fishes can migrate from upstream to downstream and vice-versa as and when required. As the Small Hydro Projects are run off the river & there is no formation of reservoir, hence, no fish ladder is required in the projects. 4 Doing proper treatment in the catechment area of the project. Proper treatment in catchment area shall be ensured as already explained under the heading “proposed standard to be followed during construction of SHP”.

BHAGIRATHI ECO SENSITIVE ZONE ZONAL MASTER PLAN For MANERI BHALI HEP STAGE –I & II UJVN Ltd

• NOTIFICATION REGARDING BHAGIRATHI
ECO SENSITIVE ZONE REGULATES THE ACTIVITIES OF EXISTING POWER PLANTS • UJVN LTD SEEKS TO INCORPORATE THE ACTIVITIES OF ITS EXISTING HYDRO-POWER PLANT LOCATED IN BHAGIRATHI VALLEY UNDER THE PROVISION OF SAID ACT. In Uttarakashi District UJVNL has two existing Hydro-Electric Projects on Bhagirathi River

Maneri Bhali HEP Stage-I: 3x30 MW: Stretching from Village Maneri to Village Tiloth
Maneri Bhali HEP Stage-II: 4x76 MW: Stretching from Village Kansain to Dharasu

Maneri Bhali HEP Stage-I • Project was commenced in 1973 • Project was commissioned in 1984 • Brief Description of Project Dam is located in D/s of Maneri Village. It is a diversion dam from where Head Race Tunnel of length 8.63 km takes off. Power house of project is located near Tiloth village, across the Bhagirathi river, in Uttarkashi city with total installed capacity 90MW (3x30MW) Geographical Location of Maneri Dam: Longitude 78°30’E ; Latitude 30°’44.5’N Salient features are appended as Annexure-I Routine Operational Activity • For generating the power 90MW , flow of water in tunnel is maintained to70 cumecs.
(2662.5 cusecs) • Water level is kept at 1294m El except monsoon season. • During monsoon season water level is kept at 1290m. and excess discharge is allowed to flow into the river. Usually, river discharge becomes more than 70 cumecs from May to mid of October • When rive discharge is decreased below 70 cumecs, all spillway Gates are fully closed. This condition usually prevails from mid of October to end of April. • During monsoon, quantum of trash flowing in the river is used to very high, hence trash rack often gets choked and caused head loss. Limit of head loss is 100cm. Similarly during monsoon, silt content in river water is used to very high and power house can not be run when silt content in river water reaches upto limiting value of 1500 ppm. • Whenever one of the above two condition prevails at Dam, shut down for power house is allowed and all gates of dam are fully opened. Before release of water from dam, warning is communicated in down stream through public address system and bulk sms ROUTINE MAINTENANCE & Repair Activity

30 • After retreat of monsoon, structures and hydro-mechanical components of dam and power house, detail is in Annexure-I, are inspected and damages are repaired. In monsoon season, most of the damages occurred in roller bucket and spillway of dam. Hence a periodic repair in every three years is required. Under this activity, after de-silting of roller bucket, spillway and roller bucket are repaired accordingly. This activity enhances the life of dam.

BENEFIT • Generation from the project : 460 MU • Market Rate (Approx) : Rs4.50 per unit • Market Cost of Generated Electricity from the project (Approx) : Rs270/- crore • Nos of Employees employed in the project (Permanent/Temporary) : 260 Nos • Nos of person employed through contractor (Approx) : 100Nos

Cost of Project:- • Cost of Project (1990 base) : Rs 92.19 crore • Cost of Project (2015) : Rs 700/- crore (Approx) • As Hydro-mechanical component like gates, sills , guides and stop-log gates etc always faced moist condition hence a periodic epoxy painting after sand blasting on surfaces is required which enhances the life of hydro-mechanical components • Besides dam and power house, Joshiyara Barrage colony, Shaktipuram Colony Chinyalisaur are also maintained regularly where personnel deputed in operation and maintenance of Barrage and power house resides. Sweeping, cleaning and garbage disposal is an essential part of this activity.
• All above repair and maintenance are of regular schedule and mandatory for smooth operation of HEP’s

31 MANERI BHALI HEP STAGE – II • Project was commenced in 1981. • Project was commissioned in 2008 • Brief description of project :- Barrage of the project is located just D/s of Uttarkashi city near village Kansain. It is a diversion barrage from where Head Race Tunnel of length 16 Kms takes off . power house of projects is located at Dharasu with total installed capacity 304 MW(4X76MW). • Geographical location of Joshiyara Barrage Longitude 78025’25’’ E; Latitude 30043’46’’ N • Salient features are appended as Annexure-II Routine Operational Activity • For generating the power 304MW , flow of water in tunnel is maintained to142 cumecs.
(5041 cusecs) • Water level is kept at 1108m El except monsoon season. • During monsoon season water level is kept at 1106m and excess discharge is allowed to flow into the river. Usually, river discharge becomes more than 142 cumecs from June to September • When rive discharge is decreased below 142 cumecs, all spillway Gates are fully closed. This condition usually prevails from October to May. • During monsoon, quantum of trash flowing in the river is used to very high, hence trash rack often gets choked and caused head loss. Limit of head loss is 100cm. • Similarly during monsoon, silt content in river water is used to very high and power house can not be run when silt content in river water reaches upto limiting value of 3000 ppm. • Whenever one of the above two condition prevails at Dam, shut down for power house is allowed and all gates of dam are fully opened. • Before release of water from dam, warning is communicated in down stream through public address system and bulk sms • Every year after retreat of monsoon, structures and hydro mechanical components of dam and power house, detail is in annexure-II are inspected and damages are repaired. • In monsoon season, most of the damages occurred in Floor and Glacis of spillway of Barrage. Hence a periodic repair in every three years is required. Under this activity, after de-silting of Floor in U/s as well in D/s, spillway and floor are repaired accordingly. This activity enhances the life of Barrage. • As Hydro-mechanical component like gates, sills , guides and stop-log gates etc always faced moist condition hence a periodic epoxy painting after sand blasting on surfaces is required which enhances the life of hydro-mechanical components • Besides dam and power house, Joshiyara Barrage colony, Shaktipuram Colony Chinyalisaur are also maintained regularly where personnel deputed in operation and maintenance of Barrage and power house resides. Sweeping, cleaning and garbage disposal is an essential part of this activity. • All above repair and maintenance are of regular schedule and mandatory for smooth operation of HEP’s

32 BENEFIT • Generation from the project : 1533 MU • Market Rate (Approx) : Rs4.50 per unit • Market Cost of Generated Electricity from the project (Approx) : Rs689/- crore • Nos of Employees employed in the project (Permanent/Temporary) : 350 Nos • Nos of person employed through contractor (Approx) : 150Nos COST Cost of Project (2008 base) : Rs 2323/- crore

APDA RELATED WORK • During unprecedented flood of 2012 and 2013 both banks of Bhagirathi river got severally damaged hence threat was ahead incoming monsoon of 2014. • To save the life and property of people of uttarkashi, protection of river banks was started before monsoon of 2014 from Joshiyara Barrage to Tiloth Bridge under Disaster Management Act 2005 issued by Govt Of India • Under the provision of clause-72 of this act, work related to disaster are not effected by the Act of Eco sensitive Zone. Hence Apda related on going works should be exempted from Prohibited and Regulated category of Eco sensitive zone. • At present most of the river training works are on verge of completion. Following are Apda related work carried by UJVNL:

River training work including misc. associated works on both banks of Bhagirathi river from Joshiyara Jhula pul to Tiloth bridge excluding left bank from Tiloth bridge to switch yard
Construction of protection wall around the resevoir rim of Joshiyara Barrage, uttarakashi.
River Training works on left bank of Bhagirathi River near Tiloth Power House from TRC to 50 u/s of Tiloth Bridge • All training works are constructed with rigid CC gravity / RCC wall. • No protruding structures / spurs are constructed in river training works are co • No flexible structures like gabions or CC blocks are constructed for training works.

MANERI BHALI HYDRO ELECTRIC PROJECT STAGE-I ( 3 X 30 MW) SALIENT FEATURES 1-DAM LOCATION Tehsil Bhatwari District Uttarkashi Longitude 78° 32'E Latitude 30° 44.5'N Source of Supply Bhagirathi River Catchment Area 4024 sq. km. Average Rain fall 1000mm to 1500mm Design Discharge 5000 Cumecs Type Concrete Gravity R.L. of Top of the Dam 1298.00 m Deepest Foundation Level 1259.00 m Height of the Dam above Deepest Foundation 39.00 m Crest Length 127.00 m Crest Width 6.50 m R.L. of Spillway Crest 1280.50 m Spillway crest Length Including Piers 64.00 m No. & Size of Spillway Gates 4 Nos. Each of 13.00 x 14.55 m Size Type of Spillway Gates Radial Tainted Type with Electrically Operated Hoists. Energy Dissipaters Slotted Roller Bucket Type Volume content of Dam 600000.00 Cum Maximum Storage Level 1294.50 m Free Board 2.70 M Seismic Intensity 8.00 Depth and Width of Cutoff 1.50 m & 1.00 m

2- Intake Works: R.L. of Crest 1283.25 m No. & Size of Bays 3 nos. 9.00 m Wide Each By Pass Channel 3.00 m Wide on the Left Side Trash Rack Opening From Elevation 1283.252 m to 1289.00 m Spacing of Trash Strips 85 mm Center to Center Size of Each Trash Rack Unit
1750 mm Wide x 5840 mm Height 3.Sedimentation Tank 8 nos. Hoppers in Two Rows. Size of Hoppers 15.00 x 15.70 m connected to a Single Flushing Conduit of 2.20 m Dia and 300 m Length 4. H.R.T. Type 4.75 M Dia Circular Section Length 8.63 Km. 1278.50/1249.10 Slope 1:160,1:150 Thickness of Limning 300 mm is General and in Some Small Length it is 500 mm Thick Construction Shaft At chainage 158.5 m of H.R.T. 7.00 m Dia and

34 23.00 m Depth Adits One at chainage 3332 m of H.R.T. is of 4.80 m width and 473.00 m Length. Another at Chainage 8476 m of H.R.T. is of 4.80 m Width and 274 m Length 5.Surge Shaft Type Restricted Office Type Underground with Underground Lower and Upper expansion Chambers. Size
11.00 Dia Height
69.00 m Lower Expansion Chamber 89.50 m Long and 6.00 Dia. Upper Expansion Chamber 316.00 m Long and 6.00 m Dia Ventilation Tunnel 118.00 m Long x 4.00 m x 4.50 m 5. Penstock Number and Type Single Underground Penstock of 3.80 m Dia, With 3 Branches Each of 2.50 m Dia Length
415 m 6. Power House Gross Head 180.00 m Size 56.00 m 19.45 m Installed Capacity 3x30 MW Firm Power Capacity 33.23MW at 90% Availability of Discharge Type of Turbines Francis Vertical Shaft General Level of Power House 1122.85 m Lowest Foundation Level of Power House 1100.00 m Annual Power Generation 545.829 x 106 K.W.H. The Power is Generated at 11.00 KV and is Stepped upto 220 KV by Three nos. 11/220 Transformers.
7. The Tail Race Length 120.00 m Type & Size of Tail Race Channel Trapezoidal Section 27.50 m Bed Width with Side Slopes 1:5:1 8. Cost 92.19 Crores. (1990 Base) 9. Year of Commencement 1973 10. Year of Completion 1984

35 MANERI BHALI HYDROELECTRIC PROJECT STAGE-II

SALIENT FEATURES

Geographic Location In Uttarakhand, India (District-Uttarkashi) 2. Location of Barrage At 950m downstream of Joshiyara steel bridge and about 2.5 Kms downstream of confluence of Tail Race Channel of Power house of Stage-I 3. Hydrology

i. Catchment area of Barrage Site 4416 Sq. Kms.

ii. Snow catchment area above 12000 ft. 3199 Sq. kms

iii. 90% available discharge 27.0 Cumecs.

iv. Design Flood

a. For hydraulic design 5000 Cumecs.

b. For over topping 8000 Cumecs. 4. Barrage

i. Overall length 81 Metres

ii. Clear Spans 5 bay each 13 M wide with 4 M intermediate piers.

iii. Number & Size of 5 Nos. gates Radial gates of size 13 M(Width) x 15.35 M (height)

iv. Crest level of barrage El. 1093.0 M

v. Pond level

a. Max. El. 1108.0 M

b. Min. El. 1103.0 M

vi. Top of gate El. 1108.35 M

vii. Live Storage 7.55 Lac Cum. 5. Intake

i. Location On left bank of barrage at an angle of 1130 with the barrage axis

ii. Total length 56.0 Metres

iii. No. of bays 6 bays of 8.0 M wide with 1.5 M intermediate piers.

iv. Crest elevation El. 1099.25 M

v. Number and size of gates 6 Nos. fixed wheel gates of size 8 M (width) x 6.75 M (height) 6. Sedimentation Chamber

i. Size of silt settling tank 93.00 M wide x 182 M long

ii. Number of hoppers 97 Nos.

iii. Size of hoppers 13 M x 13 M

iv. Top level of hoppers El. 1098.8 M

v. Bottom level of conduits at exit
El. 1096.4 M

vi. Design discharge of flushing
77.6 Cumecs.

vii. Full supply level in tank El. 1108.0 M

viii. Particle size to be removed Above 0.15 MM 7 Fore Bay

i. Location Downstream of the sedimentation chamber with gate arrangement.

ii. Total length 93.0 M

iii. Number of bays 10 Nos. fixed wheel gate of size 7.7 x 8.25 M 8 Cut and cover section

i. Location
Between the forebay and head race tunnel

ii. Length About 43 Metres

iii. Size 6 M dia horse shoe shape

iv. Invert level at Junction with H.R.T. El. 1094.0 Metres Head Race Tunnel

i. Type
Horse shoe 6.0 M dia.

ii. Length 16.00 Km

iii. Thickness of lining 30 Cms. To 40 Cms.

iv. Design Discharge (Max.) 142 Cumecs.

v. Maximum Velocity 4.75 M per sec.

vi. Invert Elevation El. 1094.0 M

a. Inlet

b. Intermediate adit junction El. 1040.0 M

c. Invert level at Surge tank
El. 1000.0 M

vii. Grade

a. Upto intermediate adit 1 in 159

b. Beyond 1 in 189

viii. Intermediate adit at Dhanarigad

a. Size D- Shaped 6 M dia.

b. Length 760 Metres

ix. Surge Tank adit

a. Type D- Shaped 6 M dia.

b. Size 137 Metres 1 Surge Tank

i. Type Restricted orifice type

ii. Size 13.7 M dia and about 172 M high

iii. Bottom Elevation Of tank El. 1002.20 M 1 Penstocks

i. Main Penstocks 4 Nos. , 3.0 M dia.

ii. Length of each About 800 M

37 Penstock 12. Power House

i. Location Near Dharasu on left bank of river Bhagirathi to be located in a cut at the terrace at El. 892 M. 13. ii. Head

a. Gross Head 285 Metres

b. Net Head at discharge of 142 Cumecs 247.30 Metres (on low level of Tehri reservoir) 237.60 Metres (on full level of Tehri reservoir)

iii. Installed Capacity
304 MW (4 Machines of 76 MW each)

iv. Type of Turbine Francis Vertical Shaft

v. Generator floor level 832.42 M

vi. Rated flow 35.5 m3/sec through each turbine 14. Tail Race Channel

i. Shape of TRC Rectangular section

ii. Width of TRC 16.00 m

iii. Length of TRC 51.35 m

iv. Bed level of TRC El815.995 m

v. Top level of front wall of TRC El838.000 m

vi. Draft tube opening) two opening of size 4.2415 m width and 2.24 m height

vii. Minimum TRC water level for 1 machine El 822.0 m

viii. Minimum TRC water level for 4 machine El 823.0 m

ix. Maximum TRC water level for 4 machine El 830.0 m

x. Design discharge of each machine 35.3 Cumec 15. Year of commencement 1981 16. Year of completion 2008

Zonal Master Plan of UPCL in Eco sensitive zone from
Matli to Gangotri

47 Detail of Departmental assets established for continuous electric supply at Eco sensitive zone from Barethi bridge to Dharali, Gangotri. 33/11 S/s Ladari

:
8+8MVA Power T/f 33/11 S/s Gangori

: 3+3MVA Power T/f 33/11 S/s Malla, Bhatwari

:
3 MVA Power T/f Length of 33 KV line

: 53.5 Km. Length of 11 KV line

: 157 Km.
Length of LT line

: 360 Km.
11/0.4 KV 400 KVA S/s

: 8 Nos.
11/0.4 KV 250 KVA S/s

: 22 Nos.
11/0.4 KV 100 KVA S/s

: 65 Nos.
11/0.4 KV 63 KVA S/s

: 47 Nos.
11/0.4 KV 25 KVA S/s

: 83 Nos.
11/0.4 KV 16 KVA S/s

: 14 Nos. No. of consumers

: 11250 Nos.
The current status of announcement no. 59/2008 by Hon’ble CM, Uttarakhand government.

According to the Hon’ble Chief Minister, Uttarakhand government announcement the construction of 33/11 Kv S/s has been proposed at Jhala, Harshil. The proposal for transferring of forest land to UPCL has been uploaded on the website of forest department. After transferring
forest land to UPCL, the construction of 33/11 KV S/s at Jhala will be started soon.
Total Cos of work : 338.61 Lakh.

48 The proceeding work detail under financial year 2015-16, at Eco sensitive zone (Barethi bridge to Dharali, Gangotri)

 Increasing capacity of power T/F from 1.5 MVA to 3.15 MVA at 33/11 KV S/s Malla, Bhatwari. (24.60 Lakh)  Laying of LT Aerial bunch cable at Vill. Utraon, Ganeshpur, Pata ] Sangrali, Kelsu, Agoda, Dasda, Dandalka, Bhankoli, Naugaon & Chinwa (33.10 Lakh)  Laying of LT Aerial bunch cable at different places of Uttarkashi town like Bhairaw chowk, Vishwanath chowk, Barahaat, Tambakhani, Guphiyara, Ujeli, Ganga nagar & Kot-bangla. ( 91.491 Lakh)  Construction of 4 No’s 11 KV feeder from 33/11 KV S/s Gangori. ( 23.83 Lakh)  Laying of LT aerial bunch cable at different places of block Bhatwa ( 24.85 Lakh )
 Laying of LT aerial bunch cable at Vill. Jaspur, Purali, Sukki, Jhala, Harsi, Mukhba, Dharali etc ( 37.47 Lakh)  Laying of LT aerial bunch cable at Vill. Gorsali, Malla, Lata, Raithal, Nateen etc ( 55.53 Lakh)  I/c of S/s from 100+100 KVA & construction of 11 KV line at vill. Raithal. ( 6.81 Lakh)  Construction of 11 KV line from Harsil to Mukhba, Markunda, Dharali ( 29.37 Lac)

The on-going work details under RAPDRP Project at Eco-sensitive zone at Uttarkashi Town (Barethi bridge to Dharali, Gangotri) (Expected to be completed by April-2016) Total Cost of Work : 753.10 Lakh.
 Construction of 16.17 Kms 11 KV line at different places of Uttarkashi Town.
 Replacement of ACSR weasel conductor by laying of ACSR Raccoon conductor at different places of Uttarkashi town.
 Increasing capacity of different capacity 11/0.4 KV 59 No’s DTR’s at different places of Uttarkashi Town.
 Replacement of ACSR weasel conductor by laying of LT aerial bunch cable at different places of Uttarkashi town.
 Construction of HT/LT capacitor bank at 33/11 KV S/s Ladari.

49 The electrification work under Deen Dayal Upadhyay Gramya Jyoti Yojna (DDUGJY) of
un-electrified Villages/toks of Block Bhatwari.

The electrification work of un-electrified villages/toks of block Bhatwari has been proposed under DDUGJY which has been approved by MoP, GoI. For electrification of un-electrified villages/toks 63.560 kms 11 KV/LT line & 18 nos. 11/0.4 kV S/s has to be constructed at the different places of block Bhatwari.
Total cost of the project is Rs. 547.91 Lac.

PROPOSED WORK UNDER IPDS At present no UPCL grid supply is available at Gangotri Dham for which scheme for its electrification has been approved by MoP, GoI under IPDS in which following works are proposed  Construction of 8 kms 11 KV line from Bhaironghati to Shri. Gangotri dham for connecting Shri. Gangotri dham to Grid supply.
 Replacement of old and damaged ACSR rabbit conductor from Gangotri to Harshil-17 kms.  New LT line with LT ABC - 4 kms.  New DTRs – 5Nos. Total cost of work – 179.95 Lacs

The routine/necessary work for continuous electric supply by Electricity Department.

In case of damage of different capacity 11/0.4 KV DTR the damaged transformer has to be replace on priority basis as soon as possible for continuous supply.
District Uttarkashi has already got the largest area & also the border district of Uttarakhand state & also known as very sensitive according to the Devi apda point of view. So, due to Devi apda the lines & Sub-station are usually damage in apda period. Causes this for restoration of power supply repairing work of lines & sub-station has to be done on priority basis..

Zonal Master Plan of PTCUL in Eco sensitive zone from
Matli to Gangotri

51 Zonal Master Plan of PTCUL in Eco sensitive zone from Matli to Gangotri

 No fixed asset is present in Eco sensitive zone.  As per UERC connectivity and long term open access Regulations 2015 PTCUL has planned evacuation for more than 10 MW generators.  Proposed transmission plan for evacuation of power from proposed HEPPs in Bhagirathi basin.

Sl.N o. Name of proposed HEP Proposed lines/Substations Present Status 1 Lohanrinagpala (600 MW)

NTPC 400 KV D/C Loharinagpala – Koteshwar line Work has been stopped as per the decision of National Ganga River Basin Authority.
2 Pala Maneri (480 MW)- UJVNL LILO of 1 circuit 400 KV D/C Loharinagpala – Koteshwar line at Palamaneri Work has been stopped as per the decision of National Ganga River Basin Authority.
3 Bhaironghati (381 MW)
UJVNL 400 KV D/C Bhaironghati – Dehradun Line
Work has been stopped as per the decision of National Ganga River Basin Authority.
4 Karmoli (140 MW)
THDC

220 KV D/C Karmoli – Maneribhali –I Line. 2. LILO of 220 KV D/C Karmoli – Maneribhali –I Line at

Jadhganga, Jalandharigad, Kakoragad & Syangad HEPs
Transmission system shall be constructed after application for grid connectivity by proposed generators & approval from appropriate authority/regulator. 5 Jadhganga (50 MW) – THDC 6 Jalandharigad (24 MW) – Harshil Hydro 7 Kakoragad (12.50 MW) – Harsil Hydro 8 Syangad (11.50 MW) – Harsil hydro 9 Assiganga-I (4.50 MW), Assiganga-II (4.50 MW), Kaligad (9 MW), Limchi Gad (3.50 MW), Sawari Gad (2 MW), Assiganga-III (9 MW), Songad (7.50 MW), Pilangad- II (4 MW) - UJVNL

To be evacuated through nearest UPCL network.

52 220 KV Bus 220 KV Bus 220 KV Bus 220 KV S/s Chamba 400 KV S/s Rishikesh 400 KV S/s Kashipur 400 KV S/s Puhana 220 KV S/C line 220 KV D/C line 80 KM 62.73 KM 104KM 40.49 KM 220 KV D/C line 2 KM 90 MW Maneri Bhali-1 (UJVNL) 304 MW Maneri Bhali-2 (UJVNL) Harsil Hydro 3 SHP (Proposed) (24, 12.5, 11.5 MW) Jad ganga THDC(50 MW) (Proposed) Karmoli THDC(140 MW) (Proposed) 220 KV LILO line (Proposed) 40 KM Loharinagpala NTPC Proposed (600 MW) Palamaneri UJVNL Proposed 480 MW Koteshwar P.P PGCIL 2000 MW (THDC) 765 KV Meerut Koteshwar 400 MW (THDC) Tehri HEP 400 KV Bus 765 KV Bus 400 KV 8 KM 400 KV 765 KV Bhaironghati UJVNL Proposed (381 MW) 400 KV Proposed 220 KV Jhajra Dehradun 220 KV 400 KV S/s Dehradun PGCIL 400 KV Bus 400 KV Abdullapur 400 KV Bagpat Proposed Transmission System of BHAGIRATHI BASIN 400 KV Bus 400 KV Proposed 90 KM

SUWARIGAD SHP (2x1000 Kw) (UNDER CONSTRUCTION)

54 Suwarigad Small Hydro Project; (2 X 1000 Kw) Under Construction
 Eco-Sensitive Zonewithin the Project's status : Regulated  Type of Project (Proposed / Operation/ Under Construction) : Under Construction
 Geographical Co-ordinates

 Tranch Wier - 780 37 '18.3' 'East 300 50' 49.03 '' North  Power House - 780 37 '42.52' 'East 300 50' 34.13 '' North

 River on which the Project is located – Suwarigad  Trench Weir river water catchment area - 35.67 sq km  Area & Type of the land required for Construction of Project –
 Civil Soyam Land - 2.934 Ha
 Naap Land - 0.198 Ha Total Land - 3.132 Ha  Water conductor system type and length - Surface channel 500 m, Power Pipe 315 m
Project description: - Suwarigad hydropower of capacity (2000 KW) classified as “MINI” Hydro Power Project. In accordance with the provisions contained in Gazette notification the Project of 02 MW the micro or small hydropower Project. To fulfill the energy requirements of the local communities with the consent of the Gram Sabha and other required subject to objections.
The Project comes under the “Regulated” category governed by gazette notification. The Project Suwarigad is located on the right bank of the tributary of the Bhagirathi River in the mid from 1828 m to 1675 m. The provision shall be made for continuous flow in river, 20 percent water of minimum flow of the river flows continuously.
(A) Trench Weir: - To acquire an adequate discharge for generation of the power, the construction of Diversion Structure 20 M Width (Equals to River width) shall be constructed in such a manner that neither any reservoir shall be formed nor any displacement or position of the sinking of the vegetative resources is involved due to structures to be constructed. The river flow will be sustained and it will always be ensured the flow in the river will be minimum 0.14 cumec i.e. 20% of the minimum flow of river. Natural boundaries of the river shall not affected due to construction of Trench Weir.
(B) Water Conductor System: - The Total length of Water Conductor System will be 1240 m. In Water Conductor System,
surface Channel (500 m X 1.5 m), Disilting Tank (35 m X 6.0 m), Power duct (30 m X 1.2 m) Pipe Channel (315 X 1.2 m), Forebay Tank (30 X 6.0 m) and Penstock Pipe (330 X 0 .770 m) etc. are proposed.
The minimum cutting shall be done as per width of Proposed Hydraulic structures viz Power Pipes and Penstock Pipe whose lengths are 315 m and 330 m respectively. A steel Power Pipe of

55 1.20m dia is proposed to be laid in 1.20 m wide strip land. The surface of hill is proposed to be laid according to natural slope of the hill in width strip of 1.50 m and 1.20 m. Due to which Cutting of hill will be minimal. No tunnel is proposed in the Project. Surface channel & Power pipe are the main structures in the Water Conductor System. In which water will be carried up to Forebay for the production of electricity through1.20m dia pipe in place of the channel. Hence due to use of 1.20m dia pipe in place of the channel, minimum land is required and hill cutting also shall be minimal accordingly.
(C) Land requirement for the construction of project: -
For the construction of the project Total 3.132 Ha Civil Soyam forest land & Private land is required. Mutation of 0.198 Ha land already has been done and in-principle approval of 2.934 Civil Soyam forest land has been received by Ministry of Environment and Forests, Government of India on 20.03.2013 after obtaining consent of local communities & Village Council in the prescribed forms. In continuation of above land transfer proposal of 2.934 ha Civil Soyam forest land is still awaited for the formal approval from Environment and Forests, Government of India, Dehradun office since December 2014. The suitable land have been identified and included in the proposal for the proper muck disposal excavated from construction. During Construction of the Project Provisions of task force and Indian Forest Conservation Act would be strictly followed.
(D) Switchyard and Power House : -
The construction of a Surface Power House of Size 35x8 m & Switchyard is of Size 30x36 m is proposed. Construction of Power House is proposed on a sloping terrace on the right bank of the river of Suwarigad about 15 meters from Uttarkashi-Gangotri National highway. Because of Power House is proposed on the terrace having gradient (50-100). So no hill cutting is required for the construction of Power House. Only small excavation shall be needed for leveling and foundation of the Terrace.

(E) Residential colony: - Residential colony for the Project shall not be required. During the Project construction and operation the officers & officials of the project shall reside in Pre constructed residential colony in Bhatwari against the Pala Maneri Hydro Project. During the Project's operation personnel posted in shifts, shall go from Pala Maneri colony to Power House through vehicle. (F) Technology to be adopted in the construction of Project: - Detailed Project Report was prepared by the Technical experts of the IIT Roorkee after the Detail investigation, survey and study of site. The design of hydraulic structures was done after finding site suitability with the conformity of the site by site survey, detail investigation of the Technical and Geological experts of the IIT Roorkee prior to preparing the detailed Project report.

56 (G) COST BENEFIT ANALYSIS: i. Total cost of the project Rs 1550.00 lac (without interest during construction)

Rs 1606.88 lac (with interest during construction) ii. Debt Equity Ratio

70:30 iii. Loan Repayment Period

07 years iv. Financing Institution

NABARD v. Expenditure till date

Rs 200.00 lac vi. Net Saleable energy

10.90 Million Unit vii. Levelized cost of generation
Rs 2.50 per unit viii. Annual Revenue from sale of energy Rs 382.00 lac  No change in costing shall be occurred due to implementation of Eco-sensitive gazette notification.

The following standards shall be followed strictly during Project construction:

Heavy explosives as well as heavy machinery shall be prohibited during Project construction and all the construction work shall be done through labours and small machinery only.
Material excavated from construction and unused material/Debris shall be dumped only at the places indentified by the forest department.
Construction material required for construction work such as stone, sand and aggregate etc shall be used by transport only from pre-approved mines, No Excavation/mining shall be done for the requirement of the above material on the site. Construction material required for Remaining works shall also be transported only from pre-approved mines.
The natural boundaries of the Suwarigad River shall not be changed due to construction of Trench Weir and even after completion of Remaining works; natural boundaries of the river shall not change.
A minimum 0.14 Cumec i.e. 20% of minimum water flow in river flows shall be continuously for the environmental point of view.
It shall be ensured that Monthly inspection report of the experts on the environment and pollution control board shall be forwarded to Environment and Pollution control board.
The treatment for slopes of the hills from erosion in the Project Area shall be carried out for stability through protection works and bio-engineering techniques shall be used in protection works.
Treatment of debris/Muck and landscaping shall be done through Bio Engineering & Suggestions received from technical experts shall be incorporated therein.
In Project area construction of drains shall be made for prevention of seepage and these shall have obstacle-free flow. Flow resulting from the drains will be connected with natural drainage flow/River flow.
In the design for construction of hydraulic structures, the Indian standards & specifications shall be followed.

57 11. Appropriate design standards for the construction of hydraulic structures will be followed so that the hill is not eroded. 12. There is no landslide and fault zone in the Project area.
13. There is no any irrigation or water supply scheme proposed in the upstream of the project & Project area on Suwarigad River. Hence any other scheme will not be affected due to construction of the project. 14. In the Project area there is no population and agriculture land. So there shall be no need to change agriculture land use and due to small structures of the project, no Reservoir shall be formed and hence no population shall be rehabilitated.
15. The rights and Privileges of the residents of the Project area shall not be affected with the construction of the Project and construction shall be started only after obtaining formal approvals from the residents as per rules.
16. The priority in employment shall be given to the local residents according to their qualifications during Project construction or operation.
17. The alignment of the structures of the Project shall be marked such that Loss of vegetative cover shall be minimal.
18. Construction of the Project will not affect any natural heritage site built in the Project area and pedestrian routes will be protected in its natural state. (H) Clarification for the “Regulated” category of the project under the Gazette notification of the Eco-Sensitive Zone:-
1. Government Gazette Notification No. 2429 dated 18.12.2012 Page No.- 31 Regulated activities in the Eco-Sensitive Zone, only mini or micro hydropower projects in river valley projects, which would serve the energy requirements of the local communities can only be permitted.
2. In- principle approval for the required land was obtained before the declaration of partial area into Eco-Sensitive Zone in district Uttarkashi and construction of the project had been started in year 2010. Under construction projects are also not Prohibited in the above Gazette.
3. As per gazette notification provision No. 3 (a) (i) at page number 31 contains that this Project of capacity (2000 KW) is classified as “MINI” Hydro Power Project. In accordance with the provisions contained in Gazette notification the construction of the project is not prohibited.
4. In reference to the project, it is to apprise that the estimated annual Power Generation of the project shall be 10.90 MU from which state government shall receive annual revenue of Rs 3.82 Crore. The above Electricity shall be consumed by the villegers & state residents as per government policies of the Uttarakhand.
Hence it is requested from the Eco-Sensitive Zone monitoring committee to grant the permission for works of above Project.

58 Layout of Suwarigad SMALL HYDRO PROJECT (2000 Kw):

The Salient features of the Project are given as below: SALIENT FEATURES

LOCATION: State

Uttarakhand District

Uttarkashi Village

Pala Nearest Town

Bhatwari, Uttarkashi Geographical Coordinates Longitude 780 37’ Latitude 300 51’ HYDROLOGY: Name of stream Suwarigad
Catchment Area

35.67 sq. km. upto diversion weir site 50% dependable flow 1.60 cumec Minimum flow

0.70 cumec Maximum flow (Flood) 220 cumec

DIVERSION WORK: Weir

Trench type intake Weir Elevation (Top)
1828.00 m H.F.L.

1831.45 m Design Discharge

2.12 Cumec

Size of Weir

Width 1.5 m
Depth Varies from

1.20 m to 2.20m Length

20m Intake Bulk Head Gate

2.0 m x 2.5 m Intake Service Gate

1.50 m x 1.65 m INTAKE WELL, INTAKE CHANNEL AND SHINGLE FLUSHING CHANNEL: Shape

Rectangular Size Width

       2.50 m

Height

10.58 m Length

3.10 m Intake Channel Size

      1200mm X 1200mm

Length 30m Type

      RCC Rectangular Channel

Shingle Flushing Channel Size

    400mm diameter M.S. Pipe

Length 25m Type

     Circular M.S. Pipe

Mode of operation of
Electrically / Manually operated Gates Intake Gates Mode of operation of
Manually operated Gates/ Sluice Valve

60 flushing Channel/ Pipe

DESILTING CHAMBER Full Supply Elevation
1827.63 m Length

35 m (Including splays & Fluming)
Maximum Width

6 m Nos. of Chamber

One Depth

4.0m Design Discharge

2.02 Cumec
Discharge for flushing 0.26 Cumec
Flow through Velocity

0.22 m/sec.
Power Channel / Conduit Power Channel Conduit (M.S. Pipe) Width

1500 mm

1200mm dia
Depth

1300 mm

150 mm free board Length

500 m

315 m Bed Elevation at beginning

1826.33m Slope

1 in 500

1 in 500 Flow Velocity

1.25m/sec.

1.6 m/sec. Depth of Flow

1 m

1.05 m

BYEPASS STRUCTURE & BYEPASS CHANNEL Location

RD 900 m
Crest Length & level

4.0 m at 1825.70 Depth of flow above crest

0.40m
Shape of Byepass channel

Rectangular Size of Bye pass channel

1.5m x 1.0 m FOREBAY Width

6.0m Water Depth

3.0m Free Board

1.0m Length

30m Full Reservoir Elevation

1825.70 m MDDL

1823.60 m Storage Capacity

540 cu m. (2 min. storage) Trash Rack (1 Nos.)

1200 mm wide X 1200mm high Penstock Gate (1 Nos.)

1200 mm wide X 1200 mm high PENSTOCK Center-line El. at fore-bay

1823.30 m Diameter of Main Penstock
770 mm OD
Diameter of Unit Penstock

600 mm OD Number of Main Penstock

1 Nos. Flow Through Velocity

3.98 m/sec
Plate Thickness

Varies from 8 to 10 mm Penstock Plate

Material Confirming to IS 2002 Gr. B or ASTM 285 Gr. C Anchor Blocks

8 Nos. Saddle Supports

40 Nos. Saddle Plate material

Confirming to IS 2062

61 Expansion Joints per Penstock 8 Nos. Manhole (500 mm Diameter) Not Required
Y – Pieces

1 Nos. made from 25 mm thick plates Length of Penstock

(a) 770mm OD – (i) 8 mm thick -200m

(ii) 10 mm thick –100m

(b) 600mm OD - 10mm thick 30 m POWERHOUSE Length

35 m Width

8 m Height 8 m Max. TWL

1675.00 m Min. TWL

1675.00 m SWITCHYARD Size

30 m X 36 m Elevation

1678 m ELECTRO-MECHANICAL EQUIPMENT

 Turbine

Type of Turbine

Horizontal Francis
Capacity of each turbine

1500 MHP
Number

2 Nos. Rated Head

145.00 m Generator Type of Generator

Synchronous Capacity of each Generator 1000 KW Voltage, number of phases, 3.3 KV (three phase, 50 Hz)

Frequency Number

2 Nos. Type of excitation

Brushless
TAILRACE

Shape

Rectangular Channel Size:

Width 1.5 m, depth 1 m, length 30 m
POWER AND ENERGY Installed Capacity

2x1.0 MW Annual energy

11.06 million kwh Energy available for sale

10.90 million kwh Plant load factor

62.2 %
FINANCIAL
Estimated cost of Project

: Rs. 1550 lakhs Cost of civil works

      : Rs. 757.38 lakhs

Cost of Electro-mechanical works : Rs. 714.50 lakhs Others

: Rs 78.12Lacs CDM Benefits

: Rs 54.48 Lacs levelised cost of generation
: Rs. 2.5 per Kwhr with CDM benefits levelised cost of generation : Rs. 2.67 per Kwhr without CDM benefits

LIMCHAGAD SHP (2x1750 Kw) (UNDER CONSTRUCTION)

Limchagad Small Hydro Project; (2 X 1750 Kw) Under Construction
 Eco-Sensitive Zonewithin the Project's status : Undefined  Type of Project (Proposed / Operation/ Under Construction) : Under Construction
 Geographical Co-ordinates

 Tranch Wier - 780 41 '28'' East 300 55' 31 '' North  Power House - 780 40 '55' 'East 380 55' 13 '' North

 River on which the Project is located – Limchagad  Trench Weir river water catchment area – 14.75 sq km  Area & Type of the land required for Construction of Project – Reserve Forest Land -4.275 Ha. (Formal approval of 0.9875 Ha. Land has been obtained on dated 13.04.2006 and the land case of additional 3.288 Ha. Land is still awaited form the Nodal office, Dehradun since 16.03.2013)  Water conductor system type and length - Surface channel 450m.

 Project description: -  The Limchagad SMALL HYDRO PROJECT (3500 KW) is located on the right bank of the tributary Limchagad of the Bhagirathi River in the mid from 2378.50 m to 1960 m. The provision shall be made for continuous flow in river, 20 percent water of minimum flow of the river flows continuously.
The brief descriptions of proposed Hydraulic Structures are given hereunder: (A) Trench Weir: - To acquire an adequate discharge for generation of the power, the construction of Diversion Structure 12 M Width (Equals to River width) shall be constructed in such a manner that neither any reservoir shall be formed nor any displacement or position of the sinking of the vegetative resources involved due to constructed structures to be constructed. The river flow will be sustained and it will always be ensured that the flow in the river will be minimum 0.08 cumec i.e 20% of the minimum flow of river. Natural boundaries of the river shall not affected due to construction of Trench Weir.
(B) Water Conductor System: - The Total length of Water Conductor System will be 1383 m. In Water Conductor System,
surface Channel (450 m X 1.0 m), Disilting Tank (28.4 m X 5.0 m), Power duct (35 m X 2.5 m) Pipe Channel (1.0 m dia as per requirement), Forebay Tank (20 X 5.0 m) and Penstock Pipe (850 X 0 .80 m) etc. are proposed.
The minimum cutting shall be done as per width of Proposed Hydraulic structures viz Power Pipes and Penstock Pipe whose length are 450 m and 850 m respectively. A steel Power Pipe of 1.00 m diameter is proposed to be laid in 1.0 m wide strip land. The surface of hill is proposed to be laid according to natural slope of the hill in width strip of 1.00 m. Due to which Cutting of hill

64 will be minimal. No tunnel is proposed in the Project. Surface channel & Power pipe are the main structures in the Water Conductor System.
(C) Land requirement for the construction of project: -
For the construction of the project Total 4.275 Ha Reserve Forest land is required. Formal approval of 0.9875 Ha. Land has been obtained on dated 13.04.2006 and the land case of additional 3.288 Ha. Reserve forest Land has been submitted to additional chief conservator Forest, Ministry of Forest, F.R.I, Dehradun office since 16.03.2013. The suitable land have been identified and included in the proposal for the proper muck disposal excavated from construction. During Construction of the Project Provisions of task force and Indian Forest Conservation Act would be strictly followed.
(D) Switchyard and Power House : -
The construction of a Surface Power House of Size 30x20 m & Switchyard is of Size 30x20 m is proposed. Construction of Power House is proposed on a sloping terrace on the right bank of the river of Limchagad about 500 meters from Uttarkashi-Gangotri National highway. Because of Power House is proposed on the terrace having gradient (50-100). So no hill cutting is required for the construction of Power House. Only small excavation shall be needed for leveling and foundation of the Terrace. (E) Residential colony: - Residential colony for the Project shall not be required. During the Project construction and operation the officers & officials of the project shall reside in Pre constructed residential colony in Bhatwari against the Pala Maneri Hydro Project. During the Project's operation personnel posted in shifts, shall go from Pala Maneri colony to Power House through vehicle. (F) Technology to be adopted in the construction of Project: - Detailed Project Report was prepared by the Technical experts of the IIT Roorkee after the Detail investigation, survey and study of site. The design of hydraulic structures was done after finding site suitability with the conformity of the site by site survey, detail investigation of the Technical and Geological experts of the IIT Roorkee prior to preparing the detailed Project report. (G) COST BENEFIT ANALYSIS: i. Total cost of the project Rs 2571.70 lac (without interest during construction)

Rs 2646.00 lac (with interest during construction) ii. Debt Equity Ratio

70:30 iii. Loan Repayment Period

07 years iv. Financing Institution

NABARD v. Expenditure till date

Rs 223.00 lac vi. Net Saleable energy

20.124 Million Unit vii. Levelized cost of generation
Rs 1.95 per unit viii. Annual Revenue from sale of energy Rs 704.00 lac

65  The following standards shall be followed strictly during Project construction:

Heavy explosives as well as heavy machinery shall be prohibited during Project construction and all the construction work shall be done through labours and small machinery only.
Material excavated from construction and unused material/Debris shall be dumped only at the places indentified by the forest department.
Construction material required for construction work such as stone, sand and aggregate etc shall be used by transport only from pre-approved mines, No Excavation/mining shall be done for the requirement of the above material on the site. Construction material required for Remaining works shall also be transported only from pre-approved mines.
The natural boundaries of the Limchagad River shall not be changed due to construction of Trench Weir and even after completion of Remaining works; natural boundaries of the river shall not change.
A minimum 0.14 Cumec i.e. 20% of minimum water flow in river flows shall be continuously for the environmental point of view.
It shall be ensured that Monthly inspection report of the experts on the environment and pollution control board shall be forwarded to Environment and Pollution control board.
The treatment for slopes of the hills from erosion in the Project Area shall be carried out for stability through protection works and bio-engineering techniques shall be used in protection works.
Treatment of debris/Muck and landscaping shall be done through Bio Engineering & Suggestions received from technical experts shall be incorporated therein.
In Project area construction of drains shall be made for prevention of seepage and these shall have obstacle-free flow. Flow resulting from the drains will be connected with natural drainage flow/River flow.
In the design for construction of hydraulic structures, the Indian standards & specifications shall be followed.
Appropriate design standards for the construction of hydraulic structures will be followed so that the hill is not eroded.
There is no landslide and fault zone in the Project area.
There is no any irrigation or water supply scheme proposed in the upstream of the project & Project area on Suwarigad River. Hence any other scheme will not be affected due to construction of the project.
In the Project area there is no population and agriculture land. So there shall be no need to change agriculture land use and due to small structures of the project, no Reservoir shall be formed and hence no population shall be rehabilitated.
The rights and Privileges of the residents of the Project area shall not be affected with the construction of the Project and construction shall be started only after obtaining formal approvals from the residents as per rules.
The priority in employment shall be given to the local residents according to their qualifications during Project construction or operation.

66 17. The alignment of the structures of the Project shall be marked such that Loss of vegetative cover shall be minimal.
18. Construction of the Project will not affect any natural heritage site built in the Project area and pedestrian routes will be protected in its natural state. (H) Clarification for the “Undefined” category of the project under the Gazette notification of the Eco-Sensitive Zone:-
1. Formal approval of 0.9875 Ha. Reserve forest land was obtained before the declaration of partial area into Eco-Sensitive Zone in district Uttarkashi and construction of the project had been started in year 2010. Under construction projects are also not prohibited in the above Gazette.
2. As per Government Gazette Notification No. 2429 dated 18.12.2012 Page No.- 31 following activities shall be prohibited within the Eco-sensitive Zone: 3(a)(i) River Valley projects: Setting up of new hydro-electric power plants (dams, tunneling, and construction of reservoir) and expansion of existing plants on the river Bhagirathi and all its tributaries from Gaumukh to Uttarkashi except micro or mini hydel power projects, which would serve the energy needs of the local communities, subject to consent of the gram sabha and all other requisite clearances; 3. In reference to the project, it is to apprise that the estimated annual Power Generation of the project shall be 20.12 MU from which state government shall receive annual revenue of Rs 7.04 Crore per year. The above Electricity shall be consumed by the villegers & state residents as per government policies of the Uttarakhand.

68 The Salient features of the Project are given as below: SALIENT FEATURES LOCATION: I. State:

Uttarakhand
II. District:

Uttarkashi III. Village:

Gangnani
IV. Nearest Town:

Bhatwari, Uttarkashi V. Geographical Coordinates Trench weir Power House

Longitude 780 41’ 28” 300 55’ 13”

       Latitude                                  300 55’ 31”    300 55’ 13”

HYDROLOGY: I. Name of stream: Limcha-Gad
II. Catchment Area:
14.75 sq. km. upto diversion weir site III. 50% dependable flow
1.1 cumec IV. Minimum flow
0.4 cumec V. Maximum flow (Flood)
105 cumec
DIVERSION WORK: I. Weir:

Trench type intake II. Weir Elevation (Top)

2378.5 m III. H.F.L.

2381.5 m IV. Design Discharge for

1.1 Cumec Power generation

Size of Weir: Width 1.5 m

Depth Varies from 0.6 m to 1.20m

Length 12 m V. Intake Bulk Head Gate:
1.8 m x 1.5 m VI.
Intake Service Gate: 2.8 m x 1.0 m INTAKE WELL, INTAKE CHANNEL AND SHINGLE FLUSHING CHANNEL I. Shape

Rectangular II. Size
Width

5.0 m Height

6.0 m Length (parallet to river) 8.0 m POWER DUCT Size :

2.5 m mm X 0.6 m /2.1 m (in box section slab) Length 35m Type

RCC Rectangular Channel/box section

SINGLE FLUSHING CHANNEL
Size :

1.0 m X 0.3 m (B=1.0 m, FSD = 0.3 m) Length 120 m Type

       RCC Rectangular Channel/covered withremovable slabs 
    Mode of operation of    :

Electrically Manually operated Gates Power duct and shingle excluder DESILTING TANK
I. Full Supply Elevation

2377.0 m II. Length

28.4 m ( Including splays & Fluming)

69 III. Width

5.0 m IV. Nos. of hoppers

4 V. Depth 1.3+2.7 = 4.0 m
VI. Average Design Discharge
2.2 Cumec
VII. Discharge for flushing 0.5 Cumec
VIII. Flow through Velocity

0.35 m/sec.

Power Channel/ Power
Free Flow M.S Pipe Free Flow pipe Channel

(open/box)
I. Width

      1.0 m                          1.0 m dia

II. Depth (FSD) 1.8 m 0.85 m
III. Bed Elevation at beginning 2375.1
IV Slope 1 in 700 1 in 260 V. Flow velocity 1.11 m/ sec. 2. m/sec.
VI Total length of power
450 m
Channel including free flow MS pipe in short pieces as and
Where required
BYPASS SPILLWAY STRUCTURE & ESCAPE CHANNEL
I. Location
Just before forebay II. Crest Length & level

5.0 m at RL 2376.3 m
III. Depth of flow above crest

0.40 m
IV. Shape of Bypass channel

Rectangular
V. Size of Bye pass channel
1.5m X1.0 m, stepped spillway
FOREBAY I. Width:

5.0m II. Water Depth:
6.5 m III. Free Board:

1.0 (+0.4)=1.4 m
IV. Length

20m V. Full Reservoir Elevation:

2376.3 m VI. MDDL:

2373.8 m VII. Storage Capacity:

240 cu m. (2 min. storage) VIII. Trash Rack (1 Nos.)
3.0 m wide X 2.55 m high IX Gate on power channel before forebay 1.4 m wide x 3.2 m height

PENSTOCK I. Center-line El. at fore-bay

04 m II. Diameter of Main Penstock 0.8 m
III. Diameter of Unit Penstock

0.6 m
IV. Number of Main Penstock

1 Nos. V. Flow Through Velocity

3.8 m/sec
VI. Plate Thickness

8 to mm to 20 mm VII. Penstock Plate

Material Confirming to IS 2002 Gr. B
VIII. Anchor Blocks 40 Nos.
IX. Saddle Supports 100 Nos.
X. Saddle plate material Confirming to IS 2062 XI. Expansion joints per penstock 40 Nos.

70 XII. Y- Pieces

01 No made form 25 mm thick plates XIII. Length of main penstock 800 metres (thickness8 to 20 mm)
Length of unit penstock 50 metres (plate thickness-16 mm)
POWERHOUSE I. Length

      30 m

II. Width

      20 m

III. Height 8 m IV. Max. TWL

1960.00 m V. Min. TWL

1958.5 m SWITCHYARD I. Size

30 m X 20 m II. Elevation

1962 m

ELECTRO-MECHANICAL EQUIPMENT A. TURBINE
I. Type of Turbine

Horizontal pelton -2 jet
II. Capacity of each turbine
1750 KW
III. Number

2 Nos.
IV. Rated Head

400 m
B. GENERATOR
.I. Type of Generator

Synchronous
II. Capacity of each Generator

1750 KW
III. Voltage, number of phase, Frequency 3.3 KV ( Three phase, 50 HZ)
IV. Rated RPM

1000 V. Number

2 Nos.
VI. Type of excitation

Brushless

TAILRACE
I. Shape
Rectangular Channel
II. Size Width 2.5 m , FSD 0.6 m,
Length 100 m , bed slope 1in 500
POWER AND ENERGY
I. Installed Capacity 2x 1.75 MW ( 3500 KW)
II. Annual energy 20.644 million kwh III. Energy available for sale 20.124 million kwh IV. Plant load factor 67.32% million kwh FINANCIAL I. Estimated cost of project

Rs. 2571.70 Lacs II. Cost of Civil works Rs. 1508.26 Lacs III. Cost of Electro-mechanical works

Rs. 958.43 Lacs IV. Cost of Transmission works:

Rs. 75 Lacs V. Cost of Land and other preliminary works
Rs. 30.00 Lacs VI. Total CDM Benefit
Rs. 79.69 Lacs VII. Levelised cost of generation

Rs. 1.95 per Kwhr with CDM
Over a 30 year period Benefit for 10 yrs & Rs. 2.08 per kwhr without CDM Benfit VIII. Equity ( 30% of project cost)

Rs. 642.18 lacs IX. Levelised return on equity

Rs. 14.00 %
( with Rs. 2.80 per kwhr as sale price over the 30 year period

ASIGANGA-I SHP (2x2250 Kw) (UNDER CONSTRUCTION)

Asiganga-I Hydro Electric Project (2X2250KW)  Status of the Project as per Eco Sensetive Zone Gazette notification – Undefined.  Actual Status of the Project- Under construction.  Geographical Coordinates-
 Trench weir -300 48’ 37’’ North, 780 27’05’’ East  Name of the River on which project is situated- Asiganga  Water catchment area of the River on Trench Weir – 147 Sq Km  Type & Area of the Land for the project- 2.162 Ha Reserve forest Land  Type & Length of water conductor system –
 Open channel -1410 m
 Pressure free Tunnel -800m

Detail of the Asiganga-I Project :- Project is situated on the left bank of the river Asiganga from the base of the river from 1496.00m to 1394.25 m. Provision is made for release of Minimum 20% (0.81 cumec ) water continuously in the downstream of project to maintain the continuous flow of water in the river . This projected was started in 2004-05. Now 70% Construction work of the project has been completed Before the flash flood of 03.08.2012.
Detail of the various component of the project is as followings-

Trench Weir-
22 m wide Trench weir has been constructed before the flash flood 03.08.2013 but due to flash flood of 03.08.2013 flash flood, the trench weir has been completely damaged hence the restoration work of the trench weir is proposed in the revised DPR. Due to restoration of the trench weir natural boundaries of the river will not be affected. Hence no rehabilation of the population shall be required and life of flora and fauna will not be disturbed.
Water Conductor Systerm-
Proposed component of the water conducter system as per DPR- Length of Water Conducter System- 2552m Open Channel-1410 x 2.1 m Desilting Tank- 70 x 8m
Pressure free Tunnel- 800x2.1m Forebay- 32x10m Penstock- 150 x1.3m Tail Race Channel- 90m

The construction work of the above said various component of the water conductor system has been completed before flash flood of june 2013. But due to the flash flood all the component of the water conductor system have been damaged partially. The restoration work of the above will not disturb the life of nearby population & surroundings of the Asiganga river.

Land Details of the Project-

73 Total 2.162 ha Reserve forest land is required for completion of the project. In which formal approval of 0.923 ha reserve forest land has been approved on dated – 26.06.2001 & formal approval of remaining 1.239 ha reserve forest land has been approved on dated- 31.08.2010. The lease deed of the 2.162 ha Reserve forest land has been done on dated- 14.06.2012.There is no requirement of any additional land for restoration of the project. The provision will be made to strict compliance of rules & regulation of Indian forest conservation act & Task force during the restoration of the Project. 4) Switchyard and Power House:- The construction of 30X 18 m size surface Power House and 30x20m size Switch Yard are proposed in this project. In which the construction of Power House has been completed before the flash flood of August 2012 but due to flash flood Power House building has been damaged. Now the construction of New Power House is proposed on the left bank of the river Asiganga on Gangori-SangamChatti Road. The provision shall be made for the stabilization & protection of hill slopes during the leveling of Terrace and excavation of Foundation of Power House building as per Bio Engineering & Views of the Experts.

Residential building
The construction of residential building for the project has been completed in 2010 at Gangori.
Cost Benefit Analysis: ix. Total cost of the project Rs 5360.81 lac (without interest during construction)

Rs 6361.47 lac (with interest during construction) x. Debt Equity Ration

70:30 xi. Loan Repayment Period

12 Years xii. Financing Institution

NABRAD xiii. Expenditure till date

Rs 3274 lac xiv. Net Saleable energy

26.33 Million Unit xv. Levelized cost of generation

Rs 3.89 per unit xvi. Annual Revenue from sale of energy

Rs 921.00 lac

 7) Technology used in the Restoration of the Project- The DPR of the project has been prepared by the technical experts of Indian Institute of Technology, Roorkee. After the flash flood, the revised DPR has been prepared incorporating the views of technical Experts of IIT Roorkee, UJVNL & other departments which has been approved by the BoD of UJVNL.

The following parameters will be considered during the restoration & construction of balance work of the Project- a) Maximum work, as far as possible shall be carried out by labour in place of heavy machinery. b) There is no need of any kind of blasting in this project. but Controlled blasting will be done if required.

74 c) Muck produced during the restoration of the project will be disposed off on demarcated lands as per instruction of Forest department. d) RBM used in the project will be carted from the government approved quarries. RBM will not be taken from the river at project site.
e) Natural boundaries of the river will not be disturbed due to restoration of the project. f) To maintain the environmental discharge minimum 20% (0.81 cumec) water will be released continuously in downstream of the project in the river Asiganga. g) The monthly inspection report of the project construction will be sent to the Environment pollution control board and construction work will be carried out as per instruction of Environment pollution control board. h) The hilly slopes will be maintained & protected by using latest bio engineering technologies. i) Treatment of produced muck & land scaping will be done with the help of bio engineering & according to the views of experts. j) Systematic Drainage system will constructed to avoid the unnecessary storage of the water with in the project & surroundings and the drainage system will be connected to the natural drainage. k) The various component of the project will be construct as per suitable design parameter to avoid the decay of the slopes. l) The project is not situated in sliding zone & fault zone. m) The flow of the Asiganga river will not be disturbed due to project restoration. n) Irrigation & water supply projects are not proposed in this area and no other project will
be affected by the restoration of this project. o) Habitation & Agricultural land is not situated in the project area hence there is no need to rehabilitation of population & conversion of Land. p) Priority will be made for the employment of the people of the project affected area according to their qualification. q) Suitable alignment of the various component of the project will be adopted to maintain the forest/vegetal cover. r) Heritage of state/country will not be affected due to restoration of the project. Roads situated in the project will be conserved in their natural condition. s) 70% Restoration work of the project and remaining 30% balance construction work will be done as per gazette notification of Eco Sensetive Zone. 8) Recommendation of the gazette notification of Eco Sencetive Zone for this project-  Construction of Asiganga-I (4.5 MW) SMALL HYDRO PROJECT has been started in 2004.This project is not defined in the Eco sensitive zone gazette notification.
 According to Eco sensitive zone gazette notification GOI point no-03 para(1) the following activities are prohibited for the river velly projects- “Setting up of new hydro-electric power plants(dams, tunneling, and construction of reservoir) and expansion of existing plants on the river Bhagirathi and all its tributaries from Gaumukh to Uttarkashi except micro or mini hydel power projects, which would serve the energy needs of the local communities, subject to consent of the gram sabha and all other requisite clearances”. 9) Conculsion- The status of this project is not defined in the Gazette notification. This is an under construction project. In addition to this, this project does not included in the 24 projects which were prohibited by the Honorable Supermecourt of India. 70% construction work of

75 this project has already been completed which requires only restoration & maintenance and remaining 30% balance construction work is still to be carried out. The above said restoration work (70%) & balance construction work (30%) will be done as per provision made in Eco Sensitive Zone gazette notification Hence there is no harm to the Eco sensitive zone form this project.

Salient features of the Project 1- LOCATION
State

Uttarakhand District

Uttarkashi Taluka

Bhatwari
Access: i. Road

Uttarkashi-Sangamchatti
ii. Rail head

Rishikesh (174km)
Geographical coordinates (Diversion site)
- Latitude

30°48’37”N
- Longitude

78°27’05”E
2- RIVER CATCHMENT:
Catchment

Ganga
River

Ganga
Tributary

Bhagirathi
Sub-tributary

Asiganga
3- HYDROLOGY:

Catchment area at the diversion site.
Gross

147sq km
Intercepted in the scheme, if any

Nil
Snow bound catchment area

Negligible
Precipitation
Average rainfall (mm)

1630mm
Dependable yield

50%

5.63 cumec

75%

4.09 cumec

Climate data
Normal
Max
Min
Atmospheric temperature 20°C 32°C Below 0°C
Humidity

60% 85% 30%
Floods
Historical

         Maximum discharge estimated

NA
Date of occurrence

NA
Max. Design flood discharge

594 cumec
Month of nil flows

Nil

4- MEDIUM/HIGH HEAD PROJECTS:
A. Diversion structure
Type of structure

Trench type weir with trash rack

Length

22M

Overflow section

33M

Non-overflow section NIL

Shingle excluder duct

Length (appox.)

140 M

Size

1MX1M Material

RCC Maximum discharging Capacity (Cumec) 594cumec B. Intake structure

Shape and size

Rect. 8MX6M

Height above deepest foundation

6.79M

Number of gates

Two

Size of gates

3.6 MX 2.4M & 2.5X2.15M

Power Duct:
(a) Length

110M (b) Size

3.00MX 2.00M C. Desilting tank
T ype

Hopper Type Material of construction

RCC Size

70MX 8M Particle size to be removed

0.2mm Size of silt flushing pipe

450mm dia (05nos) D. Water conductor system
Open Power channel

Length (approx.)

1700M

Shape

Rectangular

Size

2.10MX2.30M

supply depth

2.00M

MaterialFull

RCC

Design discharge

5.63cumec Free flow head race Tunnel

       Length (approx.)

700M

Shape

D-Shaped

Size

2.10MX3.00M

Full supply depth

1.70M

       Material

RCC

        Design discharge

5.63cumec E. Forebay

Size

32MX7M Full supply level

RL1490.38M F. Penstock (I)
Main penstock Number

with bifurcation at ends

Diameter and Thickness 1321mm(10mm)

Length

175M

Design discharge

5.63cumec (II)

Branch Main penstock (after bifurcation) Number

Two Diameter and Thickness
938mm (10mm)
Length

20M each

Design discharge 2.815 cumec for each branch 5- POWER HOUSE Type

Surface Head Design - Gross
96.60M - Net
94.03M Size of power house
29.00 MX 14.90MX8.5M

Installed capacity

2X2250KW Turbines:

                       Type

Horizontal Francis Number

Two
Capacity

2X2250KW Type of generator Synchronous Excitation system Static Brushless excitation Regulation system
AVR Power house crane
HOT Lifting tackle capacity

18MT 6- POWER HOUSE Type

Surface Head Design - Gross
96.60M - Net

94.03M Size of power house 29.00 MX 14.90MX8.5M Installed capacity

2X2250KW Turbines:

                       Type

Horizontal Francis Number

Two
Capacity

2X2250KW Type of generator

Synchronous Excitation syste Static Brushless excitation Regulation system
AVR Power house crane
HOT Lifting tackle capacity

18MT

80 View of Trench Weir & Intake Structure across the River Asiganga before flash flood of Aug 2012.

View of Trench Weir location after flash flood in the River Asiganga on 03.08.2012.

84 A View of Completed RCC De-silting chamber before flood.

93 ASIGANGA-II SHP (2x2250 Kw) (UNDER CONSTRUCTION)

94 Asiganga-II Hydro Electric Project (2X2250KW)  Status of the Project as per Eco Sensitive Zone Gazette notification – Undefined.  Actual Status of the Project- Under construction.  Geographical Coordinates-
 Trench weir -780 26’ 40’’ North, 300 47’40’’ East  Name of the River on which project is situated- Asiganga  Water catchment area of the River on Trench Weir – 167 Sq Km  Type & Area of the Land for the project- (Total Land Required- 3.405 ha Reserve Forest Land)  2.302 Ha Reserve forest Land  Additional Land Required -1.103 Ha Reserve forest Land

 Type & Length of water conductor system –
 Open channel -271m
 Free Flow Tunnel -1604m

Detail of the Asiganga-I Project :- Project is situated on the right bank of the river Asiganga from the base of the river from 1378.42m to 1306.00 m. Provision is made for release of Minimum 20% (0.50 cumec) water continuously in the downstream of project to maintain the continuous flow of water in the river . This projected was started in 2008-09. Now 41% Construction work of the project has been completed before the flash flood of 03.08.2012 & June-2013. After the flash flood on dated 03.08.2012 some land of the project has been washed away in the flood. Hence for further construction of the project additional land was required. Therefore land case for additional land of 1.103 ha reserve forest land has been submitted to the Nodal officer Dehradun in march 2013 which is pending in the nodal office Dehradun till date. The status of the under construction project is not defined in the Eco Sensetive Zone gazette notification of GOI.
Detail of the various component of the project is as followings- 10) Trench Weir-
32 m wide Trench weir has been constructed before the flash flood 03.08.2013 but due to flash flood of 03.08.2013, the trench weir has been completely damaged hence the restoration work of the trench weir is proposed in the revised DPR. Due to restoration of the trench weir natural boundaries of the river will not be affected. Hence no rehabilitation of the population shall be required and life of flora and fauna will not be disturbed. 11) Water Conductor System-
Propose component of the water conductor system as per DPR- Length of Water Conductor System- 2228m Open Channel- 271 x 2.0 m Desilting Tank- 78 x 10m
Tunnel- 1604 x 2.0m Forebay- 40x9.0m Penstock- 135 x1.6m Tail Race Channel-100m

95 The construction work of the above said various component of the water conductor system has been completed before flash flood of June 2013 except 728m free flow tunnel. But due to flash flood all the component of the water conductor system have been damaged partially. The restoration work of the above component and construction of 878m tunnel will not disturb the life of nearby population & surroundings of the Asiganga river.

Land Details of the Project- According to the revised DPR the total 3.405 ha Reserve forest land is required for the restoration of the project in which 1.103 ha additional Reserve forest land is required for completion of the project. Formal approval of 2.302 ha reserve forest land has been approved & case for the formal approval of remaining 1.103 ha reserve forest land is pending in the nodal office Dehradun. The lease deed of the 2.302 ha Reserve forest land has been done for mutation & transfer of land. The provision will be made to strict compliance of rules & regulation of Indian forest conservation act & Task force during the restoration & balance construction of the Project.
Switchyard & Power house- For the construction of the project 30x15m size Power House Building is proposed on the right bank of the river Asiganga which is located 400m away from the bridge situated on Gangori-Sangamchatti road for Uttrown village.
Transmission Line- Every year 20.38 MU electricity generation is proposed in DPR from this project. The 12 .00Km 33KV transmission line is under construction from Kaldigad Power House to Tiloth Power House sub-station(220KV).The land case of 20.25 ha reserve forest land for the construction of transmission line has been approve by the MoEF.
Residential building
The construction of residential building for the project has been completed in 2010 at Gangori, Uttarkashi.
Cost Benefit Analysis: xvii. Total cost of the project Rs 5360.81 lac (without interest during construction)

Rs 6361.47 lac (with interest during construction) xviii. Debt Equity Ration

70:30 xix. Loan Repayment Period

25 years xx. Financing Institution

NABRAD xxi. Expenditure till date

Rs 3274 lac xxii. Net Saleable energy

26.33 Million Unit xxiii. Levelized cost of generation

Rs 3.89 per unit xxiv. Annual Revenue from sale of energy

Rs 921.00 lac xxv. Internal Rate of Return (IRR)

11.92% xxvi. Benefit cost Ratio

1.06

96 

Technology used in the Restoration and construction of balance work of the Project- The DPR of the project has been prepared by the technical experts of Indian Institute of Technology, Roorkee. After the flash flood, the revised DPR has been prepared incorporating the views of technical Experts of IIT Roorkee, UJVNL & other departments which have been approved by the BoD of UJVNL.

The following parameters will be considered during the restoration of the Project :- t) Maximum work, as far as possible shall be carried out by labour in place of heavy machinery. u) For the construction of remaining tunnel Controlled blasting will be done. v) Muck produced during the restoration of the project will be disposed off on demarcated lands as per instruction of Forest department. w) RBM used in the project will be carted from the government approved quarries. RBM will not be taken from the river at project site.
x) Natural boundaries of the river will not be disturbed due to restoration of the project. y) To maintain the environmental discharge minimum 20% (0.50 cumec) water will be released continuously in downstream of the project in the river Asiganga. z) The monthly inspection report of the project construction will be sent to the Environment pollution control board and restoration & construction work will be done as per instruction of Environment pollution control board. aa) The hilly slopes will be maintained & protected by using latest bio engineering technologies. bb) Treatment of produced muck & land scaping will be done with the help of bio engineering & according to the views of experts. cc) Systematic Drainage system will constructed to avoid the unnecessary storage of the water with in the project & surroundings and the drainage system will be connected to the natural drainage. dd) The various component of the project will be constructed as per suitable design parameter to avoid the decay of the slopes. ee) The project is not situated in sliding zone & fault zone. ff) The flow of the Asiganga River will not be disturbed due to project restoration & construction. gg) Irrigation & water supply projects are not proposed in this area and no other project will be affected by the restoration & construction of this project. hh) Habitation & Agricultural land is not situated in the project area hence there is no need to rehabilitation of population & conversion of Land. ii) Priority will be made for the employment of the people of the project affected area according to their qualification. jj) Suitable alignment of the various component of the project will be adopted to maintain the forest/vegetal cover. kk) Heritage of state/country will not be affected due to restoration of the project. Roads situated in the project area will be conserved in their natural condition.

97 ll) 41% Restoration work of the project and remaining 59% balance construction work will be done as per gazette notification of Eco Sensetive Zone.

Recommendation of the gazette notification of Eco Sensetive Zone for this project-  Construction of Asiganga-II (4.5 MW) SMALL HYDRO PROJECT has been started in 2008.This project is not defined in the Eco sensitive zone gazette notification.
 According to Eco sensitive zone gazette notification GOI point no-03 para (1) the following activities are prohibited for the river valley projects- “Setting up of new hydro-electric power plants(dams, tunneling, and construction of reservoir) and expansion of existing plants on the river Bhagirathi and all its tributaries from Gaumukh to Uttarkashi except micro or mini hydel power projects, which would serve the energy needs of the local communities, subject to consent of the gram sabha and all other requisite clearances”.
Conclusion- The status of this project is not defined in the Gazette notification. This is an under construction project. In addition to this, this project does not included in the 24 projects which were prohibited by the Honorable Supreme Court of India. 41% construction work of this project has already been completed which requires only restoration & maintenance and 59% balance construction work will be done as per provision mention in the Eco Sensetive Zone gazette notification. Hence there is no harm to the Eco sensitive zone form the restoration and construction of balance work of this project.

99 SALIENT FEATURES ASIGANGA-II SMALL HYDRO PROJECT LOCATION State

Uttarakhand District

Uttarkashi Taluka

Bhatwari
Access Road

Uttarkashi-Sangamchatti
Rail head

Rishikesh (185 km) Geographical coordinates (Diversion site) Latitude

       30°47’40”N 
                                Longitude 


       78°26’40”E

LOCATION State

Uttarakhand District

Uttarkashi Taluka

Bhatwari
Access Road Uttarkashi-Sangamchatti
Rail head

        Rishikesh (185 km)

Geographical coordinates (Diversion site) Latitude

      30°47’40”N 
                              Longitude 


      78°26’40”E

3- HYDROLOGY Catchment area at the diversion site. Gross

167 sq km Intercepted in the scheme, if any Nil Snow bound catchment area

         Negligible

Precipitation Average rainfall (mm)

1620 mm Dependable yield

50%

5.63 cumec
75%

4.09 cumec 100% (minimum discharge)

2.14 cumec
Climate data

Normal Max Min Atmospheric temperature

20° C 30° C 5° C Humidity

60% 85% 30% e. Floods Historical

Maximum discharge estimated

NA Date of occurrence

NA Max. Design flood discharge

650 cumec
Month of nil flows

Nil

4- MEDIUM/HIGH HEAD PROJECTS A Diversion structure Type of structure

Trench type weir with trash rack

100 Length

32 M ductOverflow section

22 M Non-overflow section

10 M Shingle excluder
Length (appox.)

180 m
Size

1 m x 1 m
Material

RCC Maximum discharging Capacity (Cumec) 650 cumec

B. Intake structure Shape and size

Rect. 8 m x 6 m Height above deepest foundation 6.79 m Number of gates

Two Size of gates

3.6 m x 2.4 m & 2.5 m x 2.15 m Power Duct: Length

180 m Size

3.00 m x 2.30 m 2- RIVER CATCHMENT Catchment

Ganga
River

Ganga
Tributary

Bhagirathi Sub-tributary

Asiganga D. Desilting tank Type

Hopper Type Material of construction

RCC Size

70 m x 8.5 m Particle size to be removed

0.2 mm Size of silt flushing pipe 450 mm dia(04 nos.)600 mm dia (02 Nos) E. Water conductor system (I)Open Power channel Length (approx.)

91 m Shape

Rectangular Size

2.5 m x 2.3 m Full supply depth

2.00 m
Material

RCC (II) Free flow head race Tunnel Length (approx.)

1604 m Shape

D-Shaped Size

2.10 m x 3.00 m Full supply depth

1.70 m Material

RCC
F. Forebay
Size

40 m x 8.5 m Full supply level

RL 1374.44 m

101 G. Penstock (I) Main penstock Number

One with bifurcation at ends Diameter and Thickness

1600 mm ID & 10 mm
Length

110 m (II) Branch Main penstock (after bifurcation) Number

Two Diameter and Thickness

1250 mm ID & 10 mm
Length

20 m each 5- POWER HOUSE Type

Surface Head Design - Gross

56.63 m Net

55.33 m Size of power house
30.00 m x 15 m x 8.5 m Installed capacity

2x2250 kW Turbines:

Type

Horizontal Francis Number

Two Capacity

2x2250 kW Type of generator

Synchronous Excitation system

Static Brushless excitation Regulation system

AVR Power house crane

HOT Lifting tackle capacity

18MT 6- TAIL RACE Shape

Rectangular No.

One Length.

100 m

102

103

Power Duct before 03/08/2012 Power Duct alignment Power Duct after 03/08/2012

104 Desilting Tank Before 03/08/2012 D-Tank after 03/08/2012

105 POWER CHANNEL BEFORE FLOOD

106

Tunnel Outlet portal BEFORE FLOOD

107 FOREBAY

108 POWER HOUSE BEFORE FLOOD

109

Power House location TRC outfall View of Power House, TRC & Switchyard site After Flood of 03/08/2012 Penstock alignment Switchyard

110 KALDIGAD SHP (2x4500 Kw) (UNDER CONSTRUCTION)

111

KALDIGAD SMALL HYDRO PROJECT (2x4500KW) UNDER CONSTRUCTION 1- Category of Project under Eco –Sensitive Zone - Undefined 2- Condition of Project (Proposed/Commissioned/Under Construction) – Under Construction Geographical Cordinates A – Trench Weir

300 500 28” E & 780 280 30” N B – Power House

300 280 30” E & 780 27o 5” N 3- Name of River

Kaldigad (a trinutary of Asiganga River) 4- Catchment area

111.46 SqKm 5- Type & requirement of land for the project 4.036 Ha; Reserve Forest land

       0.66 Ha Civil Soyam Land

6- Type of water conductor system and length Contour channel 100 m & free flow
tunnel, length – 2386 m

7- Brief description of the project
Kaldigad Small Hydroelectric Project (2X4500 kW) is situated on the left bank of Kaldigad River between El 1785 m – 1505 m. A provision of 20% of the minimum flow of river i.e. 0.50 cumec has been made for environmental release continuously in the River. This project is under construction prior to decalaration of Eco-Sensitive Zone in District Uttarkashi. About 21% works of the project were completed up to occurrence of flash flood in Asiganga Valley. Due to flash flood in Asiganga Valley, some part of of Project’s land was washed away, therefore; case for transfer of additional land was submitted in the office of Nodal Officer, Forest Department, Dehradun, which is still pending at their level. The category of under constructiuon hydro electric projects is not defined in GoI Gazette Notification of Eco-Sensitive Zone. The brief description of under construction / proposed hydraulic structures of the project are hereunder: (A) TRENCH WEIR A trench weir having 52 m span (equal to the width of River) has been proposed to divert the required discharge from the River, out of which approximate 40% works has been completed. Due to construction of Trench Weir, neither any reservoir will form nor any displacement or any situation of drown of vegetation will occur. The natural boundary of River will also not be affected due to construction of Trench weir. (B) WATER CONDUCTOR SYSTEM The total length of water conductor system is 2531 m. Water conductor system having, contour channel (100.0 X 2.0 m), Desilting Tank (45.0X10.0 m), Free flow tunnel (2386.0X2.0 m), Forebay (28.0X7.0 m), Penstock (590.0X1.10 m) & Tail Race Channel 228.0 m are under construction. According to the width of hydraulic structures, the minimum hill cutting has been done and minimum cutting will be done for remaining structures. The length of contour channel and penstock is 100 m and 590 m respectively.

112 The contour channel is proposed to be constructed on 3.00 m wide strip/patra. The penstock will be laid on 1.10 m wide strip along the hill slope. The minimum hill cutting will be required for contruction of these structures. Approximate 740 m free flow tunnel of the project is completed and 1646 m is yet to be completed.
(C) REQUIREMENT OF LAND For construction of project, total 5.506 Ha reserve forest land and 0.66 Ha Civil Soyam land shall be required, out of which 4.036 Ha reserve forest land has been sanctioned under the provision of Forest Conservation Act, whose lease deed has also been executed in favour of UJVNL. Tha land case for construction of the project for 1.147 Ha reserve forest land and 0.66 Ha Civil Soyam land is pending in the office of Nodal Officer, Dehradun since June 2013. A provision for proper disposal of unutilized muck at appropriate low land has been made in the sanctioned land. The muck generated from the construction of structures has been disposed off at pre demarcated dumping yard. The proper protection work has been made, to avoid the spilling of muck from the dumping yard. Land scaping of the filled dumping yard is proposed to be done by bio engineering as per suggestion of the experts. The provision of Forest Conservation Act and Task Force has been strictly complied during construction and its compliance shall be ensured during construction of remaining structures. (D) POWER HOUSE & SWITCH YARD A surface power house having size 36X23 m is proposed to be constructed in the project. Power House is proposed on the left bank of Asiganga River at 400 m down stream from the bridge, constructed on Asiganga River for travelling from Gangori – Sangamchatti Motor Road to Seku Village. The hill slopes is proposed to be stabilized by bio engineering as per consultation of experts after excavation and leveling of the terrace. (E) ELECTRIC TRANSMISSION LINE
Kaldigad Small Hydro Electric Project will generate 56.30 MU electricity per year. For transmission of generated electricity, 12 km long, 33 kV double circuit transmission line from power house to Tiloth 220 kV switch yard is under construction. An approval from MOEF for 20.25 Ha reserve forest land for construction of 33 kV, double circuit transmission line has been obtained. The conditioned laid down in the approval letter and Forest Conservation Act is being complied strictly and shall also be complied during construction of remaing works. The generated electricity from the project shall be fed to the Uttarakahdn grid which shall be consumed as per the policy of Uttarakahnd.
(F) RESEDENTIAL COLONY
The residential colony for the project has been constructed in 2011 on the land of Gangori Power House. The staff posted on the project during operation will reside in the Gangori Colony and during operation they will be transported to and fro from Gangori Colony to Power House by shift bus.

(G) TECHNIQUE IMPLEMENTED IN PROJECT CONSTRUCTION The Detailed Project Report of the project was prepared by Indian Institute of Technology, Roorkee after detailed investigation and surveying of the site. Revised Detailed Project

113 Report has been prepared incorporating the suggestions of technical experts and Geologist after flash flood occoured on 03.08.2012. The Revised Detailed Project Report has been approved by the Board of Director of UJVNL. The hydraulic structures have been designed after surveying, site inspection and detailed investigation by a team of Technical Experts & Geologist of IIT, Roorkee after establishing the suitability of the site before preparation of the Deatiled Project Report. (H) COST BENEFIT ANALYSIS i. Total cost of the project Rs 9955.37 lac (without interest during construction)

Rs 10366.00 lac (with interest during construction) ii. Debt Equity Ration

70:30 iii. Loan Repayment Period

25 years iv. Financing Institution

Asian Development Bank v. Expenditure till date

Rs 2100.00 lac vi. Net Saleable energy

56.30 Million Unit vii. Levelized cost of generation
Rs 3.59 per unit viii. Annual Revenue from sale of energy Rs 2094.36 lac ix. Internal Rate of Return (IRR)

11.92% x. Benefit cost Ratio

1.06



The following standard shall be followed strictly during construction of the project:

1- The earth moving and heavy equipments are not used at site but all works has been carried out through labour and small equipments. Controlled blasting shall be used in construction of free flow tunnel. 2- The unutilized muck, generated from construction is being disposing at demarcated and sanctioned place by the forest department. 3- The construction material such as stone, sand and aggregate has been brought from approved quarries and same has been used in construction. No mining and quarrying has been done at site for construction material. The construction material shall be brought from approved quarries for remaing works. 4- The natural boundary of Kaldigad remained unchanged during construction of Trench Weir and no change will occur in the natural boundary of river due to construction of remaing works of Trench Weir. 5- A 0.50 cumec environmental water discharge will be release always to keep the river flow continuous.
6- The monthly report of experts of environment & pollution control unit shall be ensured to submit to Environment and Pollution Control Board

114 7- The hill slopes shall be stabilized by appropriate protection works to avoid erosion of hills in the project area and the technique of bio-engineering shall be used in slope stabilization. 8- The treatment of construction generated muck shall be done as per suggestion of experts by using bio engineering. 9- The proper drains shall be constructed in project area for disposal of seepage or runoff and shall be kept free from blockage. These drains shall be connected with the natural drainage system. 10- The appropriate design standard shall be followed in design of hydraulic structures so that hill erosion could be avoided. 11- There is no any fault zone in the project area. 12- The flow of Kaldigad / Asiganga River shall remain undistrubbed during construction of project. 13- There is no irrigation or water supply scheme on the Kaldigad in project area or in upstream of the project therefore; no other project shall be affected due to construction this project. 14- There is no habitation and agricultural land in the project area, therefore conversion of land use shall not be required. Rehabilitation shall not be required due to non formation of reservoir in the project. 15- The rights of villagers in the vicinity of the project area shall not be affected due to construction of the project.
16- The priority in employement during construction and operation of the project shall be given to local villagers as per their eligibility. 17- The alignment of the project shall be done such that loss of vegetal cover could be minimized. 18- No natural heritage shall be affected due to construction of the project and the old foot path lies in the project area shall be maitained in its natural state.

115

The Salient Features of the Project are hereunder:

Location

(i) State : Uttarakhand (ii) District : Uttarkashi (iii) Tehsil : Bhatwari (iv) Village : Sangam Chatti (v) Access-road : 16 kms from Uttarkashi by Uttarkashi-Gangori-Sangam Chatti Road (vi) Reference of topo sheet

Geographical coordinator Latitude Longitude : : : 53 J/5 Weir site PH site 300-50’ 28’’ N 30’ 49’ 45’’ N 780 28’30’’ E 780 27’ 5’’ E
(vii) Altitude : 1781 m 1514 m
above mean sea level 2(a) River Catchment

(i) Catchment : 111.46 sq. km.
(Snow catchment 33.82 sq.km.) (ii) River

: Kaldigad
(a major tributary of Asiganga River) (iii) Max flood discharge : 872 cumecs 3. Medium / High Head Projects:

(a) Diversion Structure (Head works)

(i) Type of structure (Weir/barrage)

Trench type Weir of RCC (ii) Length (a) Trench
Length (b) Solid crest (over flow section) : : 22 m 30 m (iii) C.L. of Penstock
1512.70

116 (iv) Maximum discharge capacity of trench Weir : 6.25 cumecs (v) Gates on entry to intake chamber : 1 no. (b) Desilting Tank (Gutter type)

Length (including transition) : 44.0 m

Size of gutter : 28m x8m

Depth of water above Gutter : 2.0 m

Proposed particle size to be removed : 0.2 mm and above (c) Water Conductor System : 630 m Tunnel before Desilting tank, 100m Power Channel & 1756m Tunnel
(i) Length (m) : 630 m Tunnel from intake to Desilting Tank & 30 m Power Channel from Desilting Tank to Inlet portal of Tunnel followed by unpressurised free flow 1756 m long Tunnel followed by 70 m long Power Channel upto Forebay (ii) Slope : (a) in Power Duct/Tunnel : 1 in 350
(b) in Tunnel & Power Channel 1 in 1000
(iii) Size (a) Power Duct
(b) Open channel - rectangular ( c ) Tunnel – D-shaped
: : Width 1.75m,Total Depth 1.55 m Width 2.30m,Total Depth 1.55 m
Width 2.30m, total height upto crown 3.015 m
(iv) Thickness of lining of Tunnel
Thickness of wall of rectangular channel : : 0.225 m thick, CC M-20
0.200 m thick, RCC M-20 (v) Design discharge
: 4.12 cumecs
(c) Forebay:
: 2 minutes storage capacity (i) Size of forebay (upto MDDL) Maximum depth near penstock : L=27.4 m; B = 6.8, D = 4.8m (ii) Full forebay level (FSL) : 1777.20 m (d) Penstocks

117 (i) Number : One (ii) Diameter
Thickness of steel liner
: 1.1 m
8 to 20mm (iii) Length
: 580 m (iv) Size of gate on penstock at forebay
: 2.20 m high x 1.65 m long (v) Bifurcations at lower end : Bifurcation just before PH to two 0.8 m dia, 14 mm thick to feed two units 4. Power House

(i) Type : Over ground surface type Power House E.L. at Power House
1511.26 m (ii) HFL of Asiganga River at Power House site : 1509.500m on 03.08.2012 (iii) Head
 Gross Head
 Net head  Design

: : :

264.50 m 255.94 m 255.94 m

(iv) Turbine  Type  Number  Output (Kw/Hp)

: : :

Pelton horizontal shaft Two 4500 KW (v) Size of Power House :
 Length
 Width
 Height
 Machine hall floor

: : : : :

36.00 m 23.00 m 12.85 m 1511.26 m (vi) Installed capacity (KW) : 2 x 4500 KW ( Machine of 2 x 4500

118 kW already procured) (vii) Type of generator
Generator specification

Excitation system Regulation system : : : Synchronous salient pole type 4500 Kw, 11 KV, 600 rpm, 0.85 power factor
Brush-less AVR type (viii) Power House crane/lifting tackle capacity : 25 tonnes
5. Power :
(i) Installed capacity : 9000 KW ( Machine of 2X4500 kW already procured) (ii) Plant Load Factor :
74.58 %

(iii) Seasonal (max) Power (KW) : 8800 KW (iv) Annual energy (KWH) for sale
After accounting for machine outages and auxiliary consumption

on 50% dependability : 56.30 mkwh 6. Switchyard:

(i) Voltage level / basic insulation level : 33 kV (ii) No. of bays : 2 bays (iii) Size : Length and Width h

: 30 x 20 m

119

TRENCH WEIR

D- TANK

120 POWER CHANNEL

POWER HOUSE

dkYnhxkM y?kq ty fo|qr ifj;kstuk (2x4500KW)fuekZ.kk/khu

121 PILANGAD – I SHP (2x1125 Kw) (EXISTING)

122

PILANGAD – I SMALL HYDRO ELECTRIC PROJECT (2x1125 Kw) (EXISTING) 1- Category of Project under Eco –Sensitive Zone - Regulated 2- Condition of Project (Proposed/Commissioned/Under Construction) – Existing Project (Damaged due to flash flood of 15 – 17 June 2013, Works of restoration under progress) Geographical Cordinates A – Power House

300 460 E & 780 38o N 3- Name of River

Pilangad (a trinutary of Bhagirathi River) 4- Catchment area

198.50 SqKm 5- Type & requirement of land for the project Existing Project 6- Type of water conductor system and length Contour channel 1350 m
7- BRIEF DESCRIPTION OF THE PROJECT Pilangad Small Hydro Electric Project is located in Tehsil Bhatwari, District Uttarkashi in between 300 460 E & 780 38o N.The project was commissioned in year 2003 -04 and since then the project is generating electricity. Due to flash flood occurred in 15 – 17 June 2013 in Uttarakhand, the Trench Weir, Desilting Tank and partial Contour channel of the project was got damaged and electricity generatin was stopped from the project. The project generated average 10.60 MU per year since its commissioning year 2004 to 2013, upto its damage. The project is connected to Uttarakhand grid, the electricity generated from the project was utilized directly or indirectly by the villagers of Uttarkashi and Uttarkhand. The restoration of the damaged structures of the project is essential for the development of Uttarakhand. Central Govt has sanction central assistance for restoration of the project under disaster packages (SPA – R). 8- RESTORATION WORKS OF DAMAGED STRUCTURES A – No additional land is required for restoration of the damaged structures of the project.

B – The restoration of the damaged structures of the project shall be done on its original alignment and on earlier sanctioned land similar (without changing the length, breadth and height of earlier structures) to earlier constructed structures as per their earlier design. C – No excavation shall be required on the hill slopes for restoration of the damaged structures. The treatment to stabilize the eroded hill slopes due to flash flood shall be done.
D – The works are related to maintenance and repair, therefore little muck will generate, and that will be used in filling behind the structures. No heavy equipments and blasting will be used during restoration works therefore no possibility of noise and air pollution. The natural boundary of the Pilangad shall remain unchanged despite of restoration of damaged structures, and the flow of River shall remain as it is. Any type of expansion in

123 the installed capacity of the projected shall not occur after completion of the restoration works.

No adverse effect shall occur on the environment of the area due to restoration of damaged structures and the provision of Forest Conservation Act 1986 shall be strictly followed. 9- ECO SENSITIVE ZONE As per sub para XIII of para 3 (b) of MOEF Notification No. 24291 dated 18.12.2012 “The existing hydro-electric power projects shall continue to operate with strict environmental compliance and social audit”, Pilinagad – I Small Hydro Electric Project lies under “Regulated Activities under Eco Sensitive Zone”.
10- COST BENEFIT ANALYSIS i. Total cost of the project Rs 904.93 lac (without interest during construction)

Rs 993.43 lac (with interest during construction) ii. Financial Assistance Central Assistance under disaster package
(SPA-R) Rs 904.00 lac

iii. Expenditure till date

Nil iv. Net Saleable energy

14.21 Million Unit v. Levelized cost of generation
Rs 3.28 per unit vi. Annual Revenue from sale of energy Rs 557.03 lac vii. Internal Rate of Return (IRR)
18.29% viii. Benefit cost Ratio

1.42 

The following standards shall strictly be followed in restoration of damaged structures of the Project: 1- The earth moving and heavy equipments shall not be used at site but all works shall be carried out through labour and small equipment, therefore blasting shall not be required. 2- The unutilized muck, generated from restoration shall be disposed off in the filling behind the structures. 3- The construction material such as stone, sand and aggregate has been brought from approved quarries and same is being used in construction. No mining and quarrying has been done at site for construction material.
4- The natural boundary of Pilangad remained unchanged during construction of Trench Weir and no change will occur in the natural boundary of river due to construction of remaing works of Trench Weir.

124 5- The hill slopes shall be stabilized by appropriate protection works to avoid erosion of hills in the project area. The technique of bio-engineering shall be used in slope stabilization. 6- The proper drains shall be constructed in project area for disposal of seepage or runoff and shall be kept free from blockage. These drains shall be connected with the natural drainage system. 7- The appropriate design standard shall be followed in design of hydraulic structures so that hill erosion could be avoided. 8- There is no any fault zone in the project area. 9- The flow of Pilangad River shall remain undistrubbed during construction of project. 10- No natural heritage shall be affected due to construction of the project and the old foot path lies in the project area shall be maintained in its natural state.

The Salient Features of the Project are hereunder: 1. Location

(i) State : Uttarakhand (ii) District : Uttarkashi (iii) Tehsil : Bhatwari (iv) Village : Malla (Bhela Tepry) (v) Access-road : About 26 kms from Uttarkashi on Uttarkashi - Gangotri Route. (vi) Reference of topo sheet Geographical coordinator Latitude Longitude : : : 53 J/9 300-46’ N 780- 38’ E (vii) Altitude : 1450 m to 1600 m
above mean sea level 2(a) River Catchment

(i) Catchment : 198.5 Sqkm (ii) River

: Pilangad, a tributary of Bhagirathi River (iii) Max flood discharge : 825.00 Cumec 3. Medium / High Head Projects:

(a) Diversion Structure (Head works)

(i) Type of structure (weir/barrage)

Trench type weir of RCC (ii) Length (a) Trench
Length (b) Solid crest (over flow section) : : 22.00 m 3.00 m (iii) Minm TWL
1473.00 m

125 (iv) Maximum discharge capacity of trench weir
: 3.50 cumecs (v) Gates on entry to intake chamber : 1 no. (b) Desilting tank (Hopper type)

Length (including transition) : 35.74 m

Size of gutter : 27.74m x4.10m

Depth of water above Gutter : Varying from 2.30 to 3.30 m

Proposed particle size to be removed : 0.2 mm and above (c) Water Conductor System : 1350 m
(i) Size (a) Power Duct

(b) Open channel - rectangular

: : Length – 110 m Width 1.80 m, Total Depth 1.20 m, (FSD – 0.90 m) Length – 1200 m Width 1.80 m,Total Depth 1.20 m; (FSD – 0.90 m)

(ii) Design discharge
: 2.75 cumecs
(d) Forebay:
: 2 minutes storage capacity (i) Size of forebay (upto MDDL) Maximum depth near penstock : L=18.00 m; B = 12.00, D = 5.5 m (e) Penstocks

(i) Number : One (ii) Diameter
Thickness of steel liner
: 900 mm
8 to 10 mm (iii) Length
: 140 m (iv) Size of gate on penstock at forebay
: Sluice vale at penstock of 900 mm dia (v) Bifurcations at lower end : Bifurcation just before PH to two 600 mm dia, 10 mm thick to feed two units 4. Power House

(i)

(ii) Type

Size : Over ground surface type power house E.L. at power house 1475.00 m 30 x 11 x 8.5 m (iii) Head
 Gross Head
 Net head  Design

: : :

105.245 m 102.00 m 102.00 m

(iv) Turbine  Type

Francis horizontal shaft

126  Number  Output (Kw/Hp) :

Two 1125 KW (v) Size of power house :
 Length
 Width
 Height

: : :

30.00 m 11.00 m 8.50 m (vi) Installed capacity (KW) : 2 x 1125 KW
(vii) Type of generator
Generator specification

Excitation system Regulation system : : : Synchronous salient pole type 1250 kVA Kw, 3.3/33 KV, 1000 rpm, 0.9 power factor
Synchronous AVR type (viii) Power house crane/lifting tackle capacity : 15 tonnes
5. Power :
(i) Installed capacity : 2250 KW (2X1125 kW) (ii) Plant Load Factor : 54 % (As per previous average generation) TRC

(i) Shape

Rectangular RCC (ii) Size

1.80x1.20 (internal dimensions) (iii) Length

10 mtrs (iv) Water level (El.M) at PH site Max min

1475.00 m 1473.80 m (v) Number of size of draft tubes gates

Power

(i) Seasonal (max) Power (KW) : 2250 KW (ii) Annual energy (KWH) for sale
After accounting for machine outages and auxiliary consumption : 14.21 MU 6. Switchyard:

(i) Voltage level / basic insulation level : 33 kV (ii) No. of bays : 2 bays (iii) Size : Length and Width
: 30 x 15 m

127

TRENCH WEIR TRENCH WEIR

128

WASHOUT POWER CHANNEL WASHOUT POWER CHANNEL

129

DAMAGED DESILTING TANK TRC PIPE BURIED

130

TRC PIPE BURIED TRC PIPE BURIED

131

SONEGAD SHP (2x3500 Kw) (PROPOSED)

132

SONEGAD SMALL HYDRO PROJECT (2x3500KW) PROPOSED 1- Category of Project under Eco –Sensitive Zone - Undefined 2- Condition of Project (Proposed/Commissioned/Under Construction) – Proposed (Investigation and Planning completed) Geographical Cordinates A – Trench Weir

300 580 27” E & 780 410 11” N B – Power House

300 580 25” E & 780 41o 46” N 3- Name of River

Sonegad (a trinutary of BhagirathiRiver) 4- Catchment area

98.31 SqKm 5- Type & requirement of land for the project 1.47 Ha; Reserve Forest land

       0.33 Ha Barren Nap land

6- Type of water conductor system and length Contour channel / Pipe Channel length – 730 m. 7- DESCRIPTION OF THE PROJECT Sonegad Small Hydro Electric Project (installed capacity 7000 kW) is located on the left bank of tributary of Bhagirathi River, Sonegad between 2370 m to 2165 m. A provision to release minimum 20% water discharge of river i.e. 0.30 cumec continuously has been made in the Detailed Project Report of the Project. The brief description of the hydraulic structures of the project is as hereunder: (A) TRENCH WEIR A trench weir having 13 m span (equal to the width of River) shall be constructed to divert the required discharge from the River. Due to construction of Trench Weir, neither any reservoir will form nor any displacement or any situation of drown of vegetation will occur. The flow of River will remained continuous and 0.30 cumec flow shall be ensured. The natural boundary of River will also not affect due to construction of Trench weir. (B) WATER CONDUCTOR SYSTEM The total length of water conductor system is 1130 m. Water conductor system having, power duct (30.0X3.0 m), vortex tube chamber (25.0X4.50 m), Desilting Tank (48.4X8.7 m), Pipe Channel (600.0X1.65 m), Forebay (26.0X6.0 m), Penstock (400.0X1.20 m) etc are proposed. According to the width of hydraulic structures, the minimum hill cutting shall be done. The length of contour channel and penstock is 234 m and 590 m respectively. The Mild Steel power pipe of 1.65 m diameter is proposed to be laid on 1.65 m wide strip along contour, which shall carry the required water discharge up to Fortebay. The penstock will be laid on 1.60 & 1.20 m wide strip along the hill slope to minimize the excavation. There is no tunnel construction in the project. The main structure of water conductor system is power pipe, wherein required water discharge through 1.65 m mild steel pipe shall be carried out up to Forebay in place of

133 power channel. Therefore; on using of mild steel pipe in place of channel, the requirement of land shall be minimum and hill cutting shall also be minimum.
(C) REQUIREMENT OF LAND For construction of project and transmission line, 1.47 Ha reserve forest land and 0.33 Ha Barren Nap land shall be required. The approval of Reserve Forest land shall be taken under the provision of Forest Conservation of Act 1986 and Barren Nap land shall be taken from the land owner through mutual negotiation. The provision for proper disposal of unutilized muck at appropriate low land shall be made made in above required Reserve Forest land and the provision of Forest Conservation Act and Task Force shall strictly be complied. (D) POWER HOUSE & SWITCH YARD A surface power house having size 32X21 m is proposed to be constructed in the project. Power House is proposed on the right bank of Sonegad River at about 175 m up stream from the bridge, constructed on Sonegad on Uttarkashi - Gangotri highway. Since the Power House is proposed on an inclined terrace (50 – 100), therefore; no hill cutting is required for construction of Power House. The little excavation shall be required for leveling and foundation excavation.
(E) ELECTRIC TRANSMISSION LINE
Sonegad Small Hydro Electric Project will generate 45.43 MU electricity per year. For transmission of generated electricity, 1 km long, 33 kV double circuit transmission line from power house to Lohari 33 kV sub station is proposed to be constructed. The generated electricity from the project shall be fed to the Uttarakahdn grid which shall be consumed as per the policy of Uttarakahnd. (F) RESEDENTIAL COLONY
The residential colony for the project will not be constructed. The staff posted on the project during construction and operation will reside in the pre-constructed residential colony against Pala Maneri Hydro Electric Project at Bhatwari and staff will be transported through shift bus during operation to and fro from Bhatwari Colony to Power House.

(G) TECHNIQUE IMPLEMENTED IN PROJECT CONSTRUCTION The Detailed Project Report of the project has been prepared by Indian Institute of Technology, Roorkee after detailed investigation and surveying of the site. The hydraulic structures have been designed after surveying, site inspection and detailed investigation by a team of Technical Experts & Geologist of IIT, Roorkee after establishing the suitability of the site before preparation of the Deatiled Project Report.
(H) COST BENEFIT ANALYSIS i. Total cost of the project Rs 7633.42 lac (without interest during construction)

Rs 9617.55 lac (with interest during construction) ii. Debt Equity Ration

70:30

134 iii. Loan Repayment period

12 years iv. Financing Institution

NABARD v. Expenditure till date

NIL vi. Net Saleable energy

45.43 Million Unit vii. Levelized cost of generation Rs 3.60 per unit viii. Annual Revenue from sale of energy Rs 1908.24 lac ix. Internal Rate of Return (IRR)

11.99% x. Benefit cost Ratio

1.12 

The following standard shall be followed strictly during construction of the project: 1- The earth moving and heavy equipments shall not be used at site but all works shall be carried out through labour and small equipments.
2- The unutilized muck, generated from construction shall be disposed off at approved and demarcated land by forest department. 3- The construction material such as stone, sand and aggregate shall be brought from approved quarries. No mining and quarrying shall be done at site for construction material.
4- The natural boundary of Sonegad remained unchanged during construction of Trench Weir. 5- A 0.30 cumec environmental discharge will be release always to keep the river flow continuous.
6- The monthly report of experts of environment & pollution control unit shall be ensured to submit to Environment and Pollution Control Board. 7- The hill slopes shall be stabilized by appropriate protection works to avoid erosion of hills in the project area. The technique of bio-engineering shall be used in slope stabilization. 8- The treatment of muck generated from construction shall be done as per suggestion of experts by using bio-engineering. 9- The proper drains shall be constructed in project area for disposal of seepage or runoff and shall be kept free from blockage. These drains shall be connected with the natural drainage system. 10- The appropriate design standard shall be followed in design of hydraulic structures so that hill erosion could be avoided. 11- There is no any fault zone in the project area.

135 12- The flow of Sonengad River shall remain undistrubbed during construction of project. 13- Due to provision of power pipe for construction of the project, the excavation works shall be minimum. 14- There is no irrigation or water supply scheme on the Sonegad in project area or in upstream of the project therefore; no other project shall be affected due to construction of this project. 15- There is no habitation and agricultural land in the project area, therefore conversion of land use shall not be required. Rehabilitation shall not be required due to non formation of reservoir in the project. 16- The rights of villagers in the vicinity of the project area shall not be affected due to construction of the project.
17- The priority in employement during construction and operation of the project shall be given to local villagers as per their eligibility. 18- The alignment of the project shall be done such that loss of vegetal cover could be minimized. 19- No natural heritage shall be affected due to construction of the project and the old foot path lies in the project area shall be maintained in its natural state.

136 PILANGAD-II SHP (2x2000 Kw) (PROPOSED)

137

PILANGAD – II SMALL HYDRO ELECTRIC PROJECT (2x2000 KW) 1- Category of Project under Eco –Sensitive Zone - Undefined 2- Condition of Project (Proposed/Commissioned/Under Construction) – Under Investigation and Planning. Geographical Cordinates A – Trench Weir

300 580 27” E & 780 41o 11” N B - Power House

300 580 25” E & 780 41o 46” N Name of River

Pilangad (a trinutary of Bhagirathi River) Catchment area

105.00 SqKm

3- DESCRIPTION OF THE PROJECT Pilangad Small Hydro Electric Project is located on the right bank of the tributary of Bhagirathi River, Pilangad near Pilang village. The work of discharge measurement is being done under investigation and planning of the project. A provision to release minimum 20% discharge of river continuously for environment and ecology shall be made in the Detailed Project Report of the Project and accordingly the installed capacity of the project shall be kept. The Detailed Project Report of the Project shall be prepared after detailed investigation, surveying and inspection of the site by technical experts and geologist ensuring the suitability of the site. The construction works of the projects shall be done as per design and drawing issued by appropriate technical expert and technical specification & standards shall be followed strictly. (I) COST BENEFIT ANALYSIS The project is under preliminary investigation and planning stage, therefore cost benefit analysis could not be ascertained at this stage. 

The following standard shall be followed strictly during construction of the project: 1- The earth moving and heavy equipments shall not be used at site but all works has been carried out through labour and small equipments.
2- The unutilized muck, generated from construction shall be disposed off at approved and demarcated land by forest department. 3- The construction material such as stone, sand and aggregate shall be brought from approved quarries. No mining and quarrying shall be done at site for construction material.
4- The natural boundary of Pilangad remained unchanged during construction of Trench Weir. 5- A 0.50 cumec environmental discharge will be release always to keep the river flow continuous.

138 6- The monthly report of experts of environment & pollution control unit shall be ensured to submit to Environment and Pollution Control Board 7- The hill slopes shall be stabilized by appropriate protection works to avoid erosion of hills in tye project area. The technique of bio-engineering shall be used in slope stabilization. 8- The treatment of construction generated muck shall be done as per suggestion of experts by using bio engineering. 9- The proper drains shall be constructed in project area for disposal of seepage or runoff and shall be kept free from blockage. These drains shall be connected with the natural drainage system. 10- The appropriate design standard shall be followed in design of hydraulic structures so that hill erosion could be avoided. 11- There is no any fault zone in the project area. 12- The flow of Pilangad River shall remain undistrubbed during construction of project. 13- Power Pipe / Contour Channel shall be provided in the construction of the project to minimize the excavation. 14- There is no irrigation or water supply scheme on the Pilangad in project area or in upstream of the project therefore; no other project shall be affected due to construction of this project. 15- There is no habitation and agricultural land in the project area, therefore conversion of land use shall not be required. Rehabilitation shall not be required due to non formation of reservoir in the project. 16- The rights of villagers in the vicinity of the project area shall not be affected due to construction of the project.
17- The priority in employement during construction and operation of the project shall be given to local villagers as per their eligibility. 18- The alignment of the project shall be done such that loss of vegetal cover could be minimized. 19- No natural heritage shall be affected due to construction of the project and the old foot path lies in the project area shall be maintained in its natural state.

139

KAKORAGAD SHP (12.50 MW) (Under Implementation)

140

LAYOUT PLAN

141 Kakoragad SHP (12.50 MW)

Name of Project:Kakoragad SHP
Type:Run of River Small Hydropower Project, involves No Dam/Barrage/ Reservoir
Location: Kakoragad Stream, tributary of River Bhagirathi,Harsil, Distt Uttarkashi.
Capacity: 12.5MW
Developer: Harsil Hydro Ltd , 24/73 Birhana Road, Kanpur -208001
Development Agreement: Year 2004 -2005
DPR Approved : 2011
Project Cost (Including Interest During Construction): Rs 9195.8 Lacs
Implementation Agreement : Signed 9.9.2011(for period 40 years)
Electricity Generation Yearly: Gross 56.92MU , Nett Saleable (30 yrAvg). 49.75 MU
Tariff Assumed(2011): Rs. 3.50/unit. (Actual as applicable on commissioning under Renewable Energy Tariff determined by UERC).
Net Saleable Yearly Revenue (30yrs average):Rs 1741.1 lacs
Royalty to State- Free ElectricityYearly(30yrs average):4.92 MU
Carbon Emissions Reduction : Yearly 41,000 tonnes
Project Land requirement: 4.9675 HA.
Compensatory Afforestation Area Allocated: 9.935 HA.
Consent to Establish from State Pollution Control Board : Obtained dt. 17.7.2012
Environmental Clearance: Not applicable for SHPs (below 25MW)
Other Clearances Obtained:(i) Drinking Water Deptt,(ii) Jal Sansthan Dept, (iii) Minor Irrigation Dept, (iv) Irrigation Dept., (v) PWD Dept.,(vi) Public Health dept., (vii) EcoTask Force and Geology Dept ., viii) Agriculture dept.,(ix) Fishery Dept, (x) Village (xi) Religious & Historical monument.(xii) Forest Rights.
Environmental Flow: Presently 0.3 cumecs, as applicable. However, Environmental Flow will be maintained as may be stipulated by State/Central Govt. Authorities, Monitoring Committee, and as may be directed by Hon’ble Courts.
STATUS: Under Implementation as per terms of Implementation Agreement signed with Uttarkhand Govt. on 9.9.2011 and Consent to Establish from State Pollution Board dt 17.7.2014. However, matters relating to implementation and Forest Clearance for 24 Hydropower Projects in Alaknanda-Bhagirathi Basin, including above Project, is sub- judice before Hon’ble Supreme Court and halted till further orders in Case no 6736 of

142 2013 Alaknanda HydroPower Co. Ltd vs Anuj Joshi & Others vide Hon’ble Court order dt 13.8.2013 and subsequent orders. Project to be included in Zonal Masterplan, subject to final orders of Hon’ble Supreme Court.

STANDARDS & SAFEGUARDS.- All applicable Rules,Regulation, Conditions, Best Practices, Design Standards will be followed during Construction and Operation as stipulated by State/Central Govt. Authorities, Monitoring Committee, State Pollution Board and as may be directed by Hon’ble Courts. Due expert advice and supervision will be ensured to keep environmental impact to bare minimum and adherence to stipulated conditions. Regular reports, as applicable, will be sent to concerned Authorities as specified.

143 KAKORAGAD SHP (12.50MW) : MAIN FEATURES

Location State

: Uttaranchal District

: Uttarkashi Tehsil

: Bhatwari Village

: Harsil Access distance from

   State Capital

: Dehradun : 275 km District Head Quarter : Uttarkashi : 75 km Nearest Road Head

Harsil : 35 km from Bhatwari :3 km from Powerhouse Site Nearest Rail Head

: BG – Rishikesh (230 km)

Geographical Co-ordinate of project: Approx location Diversion weir

Northing

: 31º 03.83' N

Easting

: 078º 46.33' E

Altitude

: ± 2942 m

Details of the Stream

Name of the stream

: Kakora Gad.

Catchments area at diversion
: 86 Sq.Km.

Lean period discharge
: 1.20 cumec

Status of the stream snow / glacier / rain fed

: Glacier, snow and rain fed 4. Meteorological Information

Annual Rainfall : 1590 mm

Temperature
: Min. -12C, Max +26C

Availability of Labor

Availability of Labor in nearby area

(i) Skilled : Available at Uttarkashi.

(ii) Unskilled

: Available near project site

Preliminary Technical Parameters

6.1 Basic parameters

Gross Head (Intake to Powerhouse) : 403 m

144

Gross Head (Forebay to Powerhouse) : 400.3 m

Net head : 393.47 m

Design discharge : 3.75 m3/s

Installed Capacity : 12.5 MW

6.2

Diversion structure & intake

Type : Trench type weir with intake structure made of RCC.

Design discharge for Intake structure
: 5.36 m3/s

Altitude (above MSL) : ± 2942 m

Size
: Width : 2.5
Depth: 2.0.

Length FSL at Diversion/Intake at elevation : :
18 m ± 2942 m asl

6.3

Intake Pipe up to Desilting Chamber

Type : Steel Pipe of 1400 mm diameter

Length : 45 m

Design Discharge in Pipe : 5.16 m3/s

6.4

Desilting chamber

Design Criteria : To remove silt particles of size 0.2mm and above

Size (With Hopper Shape)

Discharge capacity :

: L = 50.00 m B = 8.25 m D = 3.50 m
Side Slope of Hopper : 1.H : 1V
4.69 m3/s

Flushing Arrangement : Sloping bed, sluice valve at the bottom

6.5

Channel from Desilting Chamber to Tunnel Inlet Portal

Type : RCC Channel

Length : 5 m

Design Discharge in Pipe

: 3.75 m3/s 6.6 Tunnel

Size

D shaped Width : 2.0 m
Height : 2.5 m

Length

1629 m

145

Discharge Capacity

3.75 m3/s 6.7 Forebay Tank

Length : 50.0 m

Width : 6.0 m

Depth : 2.5 m

Free Board : 1.0 m

Type : Rectangular RCC

Approximate Detention Time
: 3 Minute

No of Gates Valve : 1 no. for penstock Intake
1 no. for sluice valve 300 mm diameter

6.8 Penstock

Diameter Length Unit Penstock Diameter Length

: :

1250 mm
799.00 m

900 mm
2 X 10 m

Type

Thickness : Fabricated from Steel plate confirming to IS 2002 Varies from 8 mm to 32 mm.

Design discharge : 3.75 m3/s

Anchors and Saddle Supports : Anchor block at each vertical & horizontal bend, and supported on saddle support at every 6 m spacing 6.9 Power House

Type : Surface

Size of the Power House building : L = 32 m
W = 13 m H = 16.0 m

Service Bay Elevation Centre Line of turbine : : EL. ±2540.50 m
EL. ±2539.0 m

Installed Capacity : 2 X 6.25 MW

Power House Crane

50/10 Pendent Operated EOT

E&M Equipment

7.1 Turbines

Type : Two Jet horizontal Pelton Machine with a directly coupled generator

No. & Capacity : 2 x 6250 kW

Design head Speed : : 393.47 m 500 rpm

146

7.2

Generators

Type : Horizontal shaft alternating current synchronous type.

No. & Capacity : 2 x 6250 KW

Power factor

: 0.9pf 7.3 Transformer

Type and Numbers : Twono.10MVA,11/33kV Delta/Star step up transformer of ONAF type 7.4 Tail Race

Shape : Rectangular

Size : 2 m wide X 1.5m deep

Bed Slope : 1 in 600

Length FSL at Maximum Tail water level : : 100 m ± 2535.5m asl (Tail discharge is into Bhagirathi river) 8 Power

Installed Capacity : 12500 KW

Average year of 95% plant Availability : 56.92 MU

Plant Load Factor : 54.72% 9 Transmission Lines

Voltage : 33 KV Single Circuit

Length : 3 Km

Feeding Point into Grid : Harsil Switchyards

147 KAKORAGAD SHP (12.5MW) : FINANCIAL ANALYSIS FINANCIAL STATEMENTS : (As per DPR2011)

Assumptions

Construction Period (Yrs)

3.00

PROJECT COST (Rs. Lacs)

9195.8

Cost per MW (Rs. Lacs )

730.7

DEBT/EQUITY RATIO

2.33:1

RATE OF INTEREST ON LOAN

12.00%

Income Tax Rate (%)

33.66%

Tax Relief 100% For 10 years

REPAYMENT OF LOAN

Yrs

TARIFF RATE FOR IST 15 YEARS

Rs/Kwh

3.50

ESCALATION ON TARIFF IN 16TH YEAR @ 18%

3.50

GROSS GENERATION(Million Unit)

Average year

56.92

Free Power For 1st 15 Years and thereafter

0% 18%

NET SALEABLE ENERGY (Million Unit)

54.67

Carbon Credits in tonnes = 41000 tonnes

Revenue from Sale of Energy
(Average 30yrs)

Yearly

1741.1 Lacs INR

Revenue from sale of carbon credits

Yearly

125.92 lacs INR

NOTE: ACTUAL FINAL TARIFF TO BE AS DETERMINED BY UERC UNDER RENEWABLE ENERGY TARIFF

INDICATORS

TARIFF COST LEVELISED

Rs/Kwh

2.33

AVERAGE DSCR

1.49

IRR(AFTER TAX)

12.96%

Cost Details

Items

Estimated Cost (Rs. In Lacs)

Building and Civil Work : 4015.2

Plant & Machinery : 2853.7

Pre Operative Expenses : 702.0

Project Cost ( Excl. Escalation & IDC) : 7570.9

Project Cost ( Incl. Escalation & IDC) : 7195.8

148

SIYANGAD SHP (11.50MW) (Under Implementation)

149 LAYOUT PLAN

150 SIYANGAD SHP (11.50MW)

Name of Project: Siyangad SHP
Type:Run of River Small Hydropower Project, involves No Dam/Barrage/ Reservoir
Location: Siyangad Stream, tributary of River Bhagirathi,Harsil, Distt Uttarkashi.
Capacity: 11.5MW
Developer: Harsil Hydro Ltd , 24/73 Birhana Road, Kanpur -208001
Development Agreement: Year 2004 -2005
DPR Approved : 2011
Project Cost (Including Interest During Construction): Rs 9361.4Lacs
Implementation Agreement : Signed 1.9.2011 (for period 40 years)
Electricity Generation Yearly: Gross 53.52MU , Nett Saleable (30 yr Avg). 46.77 MU
Tariff Assumed(2011): Rs. 3.50/unit. (Actual as applicable on commissioning under Renewable Energy Tariff determined by UERC).
Net Saleable Yearly Revenue (30yrs average):Rs 1637.1 Lacs
Royalty to State - Free ElectricityYearly(30yrs average): 4.72 MU
Carbon Emissions Reduction : Yearly 38,555 tonnes
Project Land requirement: 4.990 HA.
Compensatory Afforestation Area Allocated: 9.980HA.
Consent to Establish from State Pollution Control Board : Obtained dt. 12.7.2012
Environmental Clearance: Not applicable for SHPs (below 25MW)
Other Clearances Obtained: (i) Drinking Water Deptt,(ii) Jal Sansthan Dept, (iii) Minor Irrigation Dept, (iv) Irrigation Dept., (v) PWD Dept.,(vi) Public Health dept., (vii) EcoTask Force and Geology Dept ., viii) Agriculture dept.,(ix) Fishery Dept, (x) Village (xi) Religious & Historical monument. (xii) Forest Rights.
Environmental Flow: Presently 0.3 cumecs, as applicable. However, Environmental Flow will be maintained as may be stipulated by State/Central Govt. Authorities, Monitoring Committee, and as may be directed by Hon’ble Courts.

151 21. STATUS: Under Implementation as per terms of Implementation Agreement signed with Uttarkhand Govt. on 1.9.2011 and Consent to Establish from State Pollution Board dt 12.7.2014. However, matters relating to implementation and Forest Clearance for 24 Hydropower Projects in Alaknanda-Bhagirathi Basin, including above Project, is sub- judice before Hon’ble Supreme Court and halted till further orders in Case no 6736 of 2013 Alaknanda HydroPower Co. Ltd vs Anuj Joshi & Others vide Hon’ble Court order dt 13.8.2013 and subsequent orders. Project to be included in Zonal Masterplan, subject to final orders of Hon’ble Supreme Court.

STANDARDS & SAFEGUARDS.- All applicable Rules,Regulation, Conditions, Best Practices, Design Standards will be followed during Construction and Operation as stipulated by State/Central Govt. Authorities, Monitoring Committee, State Pollution Board and as may be directed by Hon’ble Courts. Due expert advice and supervision will be ensured to keep environmental impact to bare minimum and adherence to stipulated conditions. Regular reports, as applicable, will be sent to concerned Authorities as specified.

152 SIYANGAD SHP (11.50MW) : MAIN FEATURES

Location

State

: Uttaranchal

District

: Uttarkashi

Tehsil

: Bhatwari

Village

: Harsil

Access distance from

   State Capital

: Dehradun : 275 km

   District Head Quarter

: Uttarkashi : 75 km

   Nearest Road Head

: Harsil : 35 km from Bhatwari :4 km u/s of PH Site

   Nearest Rail Head

: BG – Rishikesh (230 km)
2. Geographical Co-ordinate of proposed Project Structure: Approx. Location--

Diversion Weir: Northing

31º03.16' N

Easting

: 078º41.73'E

Altitude

: ± 2763 m

Details of the Stream

Name of the stream

: Siyan Gad.

Catchments area at diversion
: 136.00Sq.Km.

Lean period discharge
: 1.10 cumec

Status of the stream snow / glacier / rain fed

: Glacier, snow and rain fed 4. Meteorological Information

Annual Rainfall : 1590 mm

Temperature
: Min. -12C, Max +26C

Availability of Labor

Availability of Labor in nearby area

(i) Skilled : Available at Uttarkashi.

(ii) Unskilled

: Available near project site 6. Preliminary Technical Parameters

6.1 Basic parameters

153

Net head : 320.37 m

Design discharge : 4.21 m3/s

Installed Capacity : 11.5 MW

6.2

Diversion structure & intake

Type : Trench type weir with intake structure made of RCC.

Design discharge for Intake structure
: 5.47 m3/s

Altitude (above MSL) : 2763 m

Size
: Width : 2.5
Varies from 1.0 m to 3.0 m

Length FSL at Diversion/Intake is at elevation :

: 15 m 2762.50 m

6.3

Intake Tunnel

Size : D shaped

Length Height

Diameter Max depth of water : : :
:
32 m
2.8 m 2.1 m 1.9 m

Design Discharge
: 5.26 m3/s

6.4

Underground Desilting chamber

Design Criteria : To remove silt particles of size 0.2mm and above

Size (With Hopper Shape)

Discharge capacity :

: L = 48.0 m B = 8.0 m D = 4.4 m
Side Slope of Hopper : 1.H : 1V
5.26 m3/s

Flushing Arrangement : Sloping bed, sluice valve at the bottom 6.5

Head Race Tunnel

Size :

: :

D Shaped Width: 2.0m Height: 2.5m

Length Discharge capacity : :
2721m 4.21 m3/s

6.6
Adit Size

Length

D Shaped Width: 2.0m Height: 2.5m 50m 6.7 Forebay Tank

Length : 56.00 m

154

Width : 6.00 m

Depth : 2.5 m

Free Board : 1.0 m

Type : Rectangular RCC

Approximate Detention Time
: 3 Minute

Gross Capacity : 1155 m3

No of Gates Valve : 1 no. for penstock Intake
1 no. for sluice valve 300 mm diameter 6.8 Penstock

Diameter Length Unit Penstock Diameter Length : :

: : 1350 mm
637m

900 mm
2 X 10 m

Type

Thickness :

: Fabricated from Steel plate confirming to IS 2002 Varies from 8 mm to 28 mm.

Design discharge : 4.21 m3/s

Anchors and Saddle Supports : Anchor block at each vertical & horizontal bend, and supported on saddle support at every 6 m spacing 6.9 Power House

Type : Surface

Size of the Power House building : L = 52 m
W = 25.0 m H = 16.0 m

Service Bay Elevation Centre Line of turbine : : EL. ±2436.00 m
EL. ±2434.00 m

Installed Capacity : 2 X 5.75 MW

Power House Crane
: 50/10 EOT 7. E&M Equipment

7.1 Turbines

Type : Two Jet horizontal Pelton Machine with a directly coupled generator

No. & Capacity : 2 x 5750 kW

Design head Speed : : 320.37 m 428 rpm 7.2 Generators

Type : Horizontal shaft alternating current synchronous type.

No. & Capacity : 2 x 5750 KW

Power factor

: 0.9pf 7.3 Transformer

155

Type and Numbers : Twono.7.5MVA,11/33kV Delta/Star step up transformer of ONAF type 7.4 Tail Race

Shape : Rectangular

Size : 2 m wide X 1.5m deep

Bed Slope : 1 in 600

Length FSL at Maximum Tail water level is at elevation : :

100 m 2430.50 m
8 Power

Installed Capacity : 11500 KW

Annual Energy (Gross) Annual Energy at 95% plant availability in Average Year : :

56.34 MU 53.52 MU

Plant Load Factor (Gross) Plant Load Factor (95 % plant availability) : : 55.92%
53.12 % 9 Transmission Lines

Voltage : 33 kV Single Circuit

Length : 3 km

Feeding Point into Grid : Harsil Switchyard (Proposed PTCUL/UPCL)

156 SIYANGAD SHP (11.50MW): FINANCIAL ANALYSIS FINANCIAL STATEMENTS: (As per DPR 2011)

Assumptions

Construction Period (Yrs)

3.00

PROJECT COST (Rs. Lacs)

9361.4

Cost per MW (Rs. Lacs )

814.0

DEBT/EQUITY RATIO

2.33 :1 RATE OF INTEREST ON LOAN

12.00%

Income Tax Rate (%)

33.66%

Tax Relief 100% For 10 years REPAYMENT OF LOAN

Yrs

TARIFF RATE FOR IST 15 YEARS Rs/Kwh

3.50

ESCALATION ON TARIFF IN 16TH YEAR @ 18%

3.50

GROSS GENERATION(Million Unit) Average year
53.52

Free Power For 1st 15 Years and thereafter

0% 18% NET SALEABLE ENERGY (Million Unit)

51.40

Carbon Credits in tonnes = 38555 tonnes

Revenue from Sale of Energy
(Average 30yrs)

Yearly

1637.1 Lacs INR Revenue from sale of carbon credits

Yearly

118.4 Lacs INR NOTE: ACTUAL FINAL TARIFF TO BE AS DETERMINED BY UERC UNDER RENEWABLE ENERGY TARIFF

INDICATORS

TARIFF COST LEVELISED

Rs/Kwh

2.46

AVERAGE DSCR

1.36

IRR(AFTER TAX)

11.51%

Cost Details

Items

Estimated Cost (Rs. In Lacs)

Building and Civil Work : 4491.80

Plant & Machinery : 2666.10

Pre Operative Expenses : 579.20

Project Cost Total (excl IDC & Escalation) Project Cost Total (Incl IDC & Escalation) : : 7737.10 9361.40

157 JALANDHARYGAD SHP (24MW) (Under Implementation)

158

                                       LAYOUT PLAN

159 JALANDHARYGAD SHP (24MW)

Name of Project: Jalandharygad SHP
Type:Run of River Small Hydropower Project, involves No Dam/Barrage/ Reservoir.
Cascade with single Diversion weir and dual powerhouse.
Location: Jalandharygad Stream, tributary of River Bhagirathi,Harsil, Distt Uttarkashi.
Capacity: 24 MW
Developer: Harsil Hydro Ltd , 24/73 Birhana Road, Kanpur -208001
Development Agreement: Year 2004 -2005
DPR Approved : 2011
Project Cost (Including Interest During Construction): Rs 19715.1Lacs
Implementation Agreement : Signed 2.9.2011 (for period 40 years)
Electricity Generation Yearly: Gross 117.87MU, Nett Saleable (30 yr Avg). 105.12 MU
Tariff Assumed(2011): Rs. 3.25/unit. (Actual as applicable on commissioning under Renewable Energy Tariff determined by UERC).
Net Saleable Yearly Revenue (30yrs average): Rs 3679.2Lacs
Royalty to State - Free ElectricityYearly (30yrs average):10.40 MU
Carbon Emissions Reduction : Yearly 88,400 tonnes
Project Land requirement: 13.2175 HA.
Compensatory Afforestation Area Allocated:26.435 HA.
Consent to Establish from State Pollution Control Board : Obtained dt. 12.7.2012
Environmental Clearance: Not applicable for SHPs (below 25MW)
Other Clearances Obtained: (i) Drinking Water Deptt,(ii) Jal Sansthan Dept, (iii) Minor Irrigation Dept, (iv) Irrigation Dept., (v) PWD Dept.,(vi) Public Health dept., (vii) EcoTask Force and Geology Dept ., viii) Agriculture dept.,(ix) Fishery Dept, (x) Village (xi) Religious & Historical monument (xii) Forest Rights.
Environmental Flow: Presently 0.3 cumecs, as applicable. However, Environmental Flow will be maintained as may be stipulated by State/Central Govt. Authorities, Monitoring Committee, and as may be directed by Hon’ble Courts.
STATUS: Under Implementation as per terms of Implementation Agreement signed with Uttarkhand Govt. on 2.9.2011 and Consent to Establish from State Pollution Board dt 17.7.2014. However, matters relating to implementation and Forest Clearance for 24 Hydropower Projects in Alaknanda-Bhagirathi Basin, including above Project, is sub-

160 judice before Hon’ble Supreme Court and halted till further orders in Case no 6736 of 2013 Alaknanda HydroPower Co. Ltd vs Anuj Joshi & Others vide Hon’ble Court order dt 13.8.2013 and subsequent orders. Project to be included in Zonal Masterplan, subject to final orders of Hon’ble Supreme Court.

STANDARDS & SAFEGUARDS.- All applicable Rules,Regulation, Conditions, Best Practices, Design Standards will be followed during Construction and Operation as stipulated by State/Central Govt. Authorities, Monitoring Committee, State Pollution Board and as may be directed by Hon’ble Courts. Due expert advice and supervision will be ensured to keep environmental impact to bare minimum and adherence to stipulated conditions. Regular reports, as applicable, will be sent to concerned Authorities as specified.

161 JALANDHARYGAD SHP (24.0 MW) :Main Features

Location

State

: Uttarakhand

District

: Uttarkashi

Tehsil

: Bhatwari

Village

: Harsil

Access distance from

   State Capital

: Dehradun : 275 km

   District Head Quarter

: Uttarkashi : 75 km

   Nearest Road Head

Harsil : 35 km from Bhatwari :3 km from Powerhouse Site

   Nearest Rail Head

: BG – Rishikesh (230 km)
2. Geographical Co-ordinate of proposed Project Location: approx location Weir site

Northing Easting Altitude

: : :

3104.767' ' 078 44.374' ' ± 3105 m
3. Details of the Stream

Name of the stream

: Jalandhary Gad.

Catchments area at diversion
: 157 Sq. Km.

Lean period discharge
: 1.27 cumec

Status of the stream snow / glacier / rain fed : Glacier, snow and rain fed 4. Meteorological Information

Annual Rainfall : 1590 mm

Temperature
: Min. -12C, Max +26C 5. Availability of Labor

Availability of Labor in nearby area

(i) Skilled : Available at Uttarkashi.

(ii) Unskilled : Available near project site 6. Preliminary Technical Parameters; JG HEP 24MW in cascade design with single intake and dual powerhouse (Stage I - 18.5 MW & Stage II - 5.5 MW) Gross Head Total : 642m Net Head : 601.07m 6.1 Basic parameters (Stage I)

Gross Head (Intake to Powerhouse) : 492.00 m

Gross Head (Forebay to Powerhouse) : 468.70 m

Net head : 461.50 m

Design discharge : 4.70 m3/s

Installed Capacity : 18.5 MW 6.2 Diversion structure & intake :

Type : Trench type weir with intake structure made of RCC.

162

Design discharge for Intake structure
: 6.11 m3/s

Altitude (above MSL) : 3105.0 m

Size
: Width : 2.5
Depth: 2.0.

Length Flushing Arrangement : 29 m Gated Channel 6.3 Intake channel up to Desilting Chamber

Type : Rectangular type ( cut and cover)

Length : 422 m

Design Discharge in channel : 6.11 m3/s 6.4 Desilting chamber

Design Criteria : To remove silt particles of size 0.2mm and above

Size (With Two Hopper Shape)

Discharge capacity :

: L = 35.00 m B = 5.25 m (one hopper) D = 3.85 m
Side Slope of Hopper: 1.H: 1V
5.88 m3/s

Flushing Arrangement : Sloping bed, sluice valve at the bottom 6.5

Channel from Desilting Chamber to Tunnel Inlet Portal

Type : RCC Channel (cut and cover)

Length : 60 m

Design Discharge in channel : 4.70 m3/s 6.6 Tunnel

Size : D shaped Width : 2.1 m
Height : 2.5 m

Length : 1915 m

Discharge Capacity : 4.70 m3/s 6.7 Forebay Tank

Length : 60.0 m

Width : 6.0 m

Depth : 3.0 m

Free Board : 1.0 m

Type : Rectangular RCC

Approximate Detention Time
: 3 Minute

Gross Capacity : 1080 m3

No of Gates Valve : 1 no. for penstock Intake
1 no. for sluice valve 500 mm diameter 6.8 Penstock

Diameter Length Unit Penstock Diameter Length : :

: : 1400 mm
910.00 m

900 mm
2 X 10 m

Type

Thickness : Fabricated from Steel plate confirming to IS 2002 Varies from 8 mm to 32 mm.

163

Design discharge : 4.70 m3/s

Anchors and Saddle Supports : Anchor block at each vertical & horizontal bend, and supported on saddle support at every 6 m spacing 6.9 Power House-1

Type : Surface

Size of the Power House building : L = 52 m
W = 27.0 m H = 16.0 m

Service Bay Elevation Centre Line of turbine : : EL. ±2614.00 m
EL. ±2613.00 m

Installed Capacity : 2 X 9.25 MW

Power House Crane
: 80/20 Pendent Operated EOT 6.10 E&M Equipment

6.10.1 Turbines

Type : Two Jet horizontal Pelton Machine with a directly coupled generator

No. & Capacity : 2 x 9250 kW

Design head Speed : : 461.50 m 500 rpm 6.10.2 Generators

Type : Horizontal shaft alternating current synchronous type.

No. & Capacity : 2 x 9250 KW

Power factor : 0.8 pf 6.10.3 Transformer

Type and Numbers : Twono.14.5MVA, 11/33kV Delta/Star step up transformer of ONAF type Two Nos. UAT 33 KV/433 V 6.11 Tail Race

Shape : Rectangular

Size : 2.1 m wide X 2.5m deep

Bed Slope : 1 in 600

Length : 200 m 6.12 Power

Installed Capacity : 18500 KW

Annual Energy at 95% Plant Availability in average year : 90.69 MU

Plant Load Factor : 58.90 % 6.13 Transmission Lines

Voltage : 33 KV Single Circuit

Length : 2.5 Km

Preliminary Technical Parameters for Stage-II

164 7.1 Basic parameters

Gross Head (Intake to Powerhouse) : 147.00 m

Gross Head (Forebay to Powerhouse) : 144.60 m

Net head : 139.57 m

Design discharge : 4.65 m3/s

Installed Capacity : 5.5 MW 7.2

Channel from intake to Tunnel Inlet Portal

Type : RCC Channel

Length : 268 m

Design Discharge in channel

: 4.65 m3/s 7.3 Tunnel

Size D shaped Width: 2.1 m
Height: 2.5 m

Length 1568 m

Discharge Capacity 4.65 m3/s 7.4 Forebay Tank

Length : 62.0 m

Width : 6.5 m

Depth : 2.5 m

Free Board : 1.0 m

Type : Rectangular RCC

Approximate Detention Time
: 3 Minute

Gross Capacity : 1008 m3

No of Gates Valve : 1 no. For penstock Intake
1 no. For sluice valve 500 mm diameter 7.5 Penstock

Diameter Length Unit Penstock Diameter Length : :

: : 1300 mm
230.00 m

900 mm
2 X 10 m

Type

Thickness : Fabricated from Steel plate confirming to IS 2002 Varies from 8 mm to 16 mm.

Design discharge : 4.65 m3/s

Anchors and Saddle Supports : Anchor block at each vertical & horizontal bend, and supported on saddle support at every 6 m spacing 7.6 Power House-II

Type : Surface

Size of the Power House building : L = 28 m
W = 14.8 m H = 13.0 m

165

Service Bay Elevation Centre Line of turbine : : EL. ±2464.00 m
EL. ±2463.00 m

Installed Capacity : 2 X 2.75 MW

Power House Crane
: 25/8 Pendent Operated EOT

7.7 E&M Equipment

7.7.1 Turbines

Type : Two Jet horizontal Francis Machine with a directly coupled generator

No. & Capacity : 2 x 2750 kW

Design head Speed : : 139.57 m 500 rpm 7.7.2 Generators

Type : Horizontal shaft alternating current synchronous type.

No. & Capacity : 2 x 2750 KW

Power factor

: 0.8 pf 7.7.3 Transformer

Type and Numbers : One no. 9.0 MVA, 11/33kV Delta/Star step up transformer of ONAF type 7.8 Tail Race

Shape : Rectangular

Size : 2 m wide X 1.5m deep

Bed Slope : 1 in 600

Length : 200 m 7.9 Power

Installed Capacity : 5500 KW

Annual Energy at 95% Plant Availability in average year : 27.18 MU

Plant Load Factor : 59.39 %

7.10 Transmission Lines

Feeding Point 500M 33 KV Directly feeding into Pooling substation at Harsil

Harsil Substation Pooling substation

8.6 Pooling substation & Power Evacuation: 8.7 Power generated from stage I and stage II power houses will be fed into a pooling substation of appropriate capacity upto 33/220 KV to be located near Harsil village. Power from Kakora SHP (12.5 MW) and Siyan SHP (11.5 MW) will also be fed into this substation. Power beyond the substation will be fed into local/regional grid which will be made available by UPCL/PTCUL.

166

      JALANDHARYGAD SHP (24.0 MW) : FINANCIAL  ANALYSIS

FINANCIAL STATEMENTS: (As per DPR 2011 )

Assumptions

Construction Period (Yrs)

3.00

PROJECT COST (Rs. Lacs)

19715.1

Cost per MW (Rs. Lacs )

821.5

DEBT/EQUITY RATIO

2.33:1

RATE OF INTEREST ON LOAN

12.00%

Income Tax Rate (%)

33.66%

Tax Relief 100% For 10 years

REPAYMENT OF LOAN

Yrs

TARIFF RATE FOR IST 15 YEARS

Rs/Kwh
3.25

ESCALATION ON TARIFF IN 16TH YEAR @ 18%

3.25

GROSS GENERATION(Million Unit)

Average year

117.87

Free Power For 1st 15 Years and thereafter

0% 18%

NET SALEABLE ENERGY (Million Unit)

115.51

Carbon Credits in tonnes = 88400 tonnes

Revenue from Sale of Energy (Average 30yrs)

Yearly

3679.2 Lacs INR

Revenue from sale of carbon credits

Yearly

271.5 Lacs INR

NOTE: ACTUAL FINAL TARIFF TO BE AS DETERMINED BY UERC UNDER RENEWABLE ENERGY TARIFF

INDICATORS

TARIFF COST LEVELISED

Rs/Kwh
2.30

AVERAGE DSCR

1.35

IRR(AFTER TAX)

11.47%

Cost Details : (In Rs lacs)

Combined cost of Building and Civil Work : 7819.1

Combined cost of E& M Work : 7238.1

Total Pre Operative Expenses : 1319.4

Project Cost Total (excluding IDC & Escalation) : 16376.6

Project Cost Total (including IDC & Escalation) : 19715.1

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