KARNAH HYDRO ELECTRIC PROJECT

Jammu and Kashmir State Power Development Corporation Limited

Kashmir, India

Review of contractor’s design, Supervision of construction of Civil, Hydro Mechanical/ Electromechanical works. Supervision of manufacture of equipment, Management of contractor’s claims, Assurance of Quality control.

The J&K State Power Development Corporation intends to implement 12 MW Karnah Hydro Electric Project under Prime Minister’s Development Package -2015 (PMDP-2015) in Jammu and Kashmir State. The Karnah Hydroelectric Power Project (12 MW) with Installed capacity of 3×4 MW is situated at the stream named Quazi Nag at the Basin of Kishan Ganga near village Khudri in Tehsil- Karnah, District-Kupwara, Jammu & Kashmir corresponding to a design discharge of 13.47 cumecs and design head of 98.58 m.

PROJECT CHARACTERISTICS:

• 3 no. Horizontal Francis Turbine of each 4 MW capacity (3 x 4 MW)
• Open Trapezoidal Lined Canal Feeder Channel with design discharge of 13.47 cumecs and 100 m long; Trench weir of length 31.5 m
• Number of Intake gate (Vertical lift gate) are 2 of size (2.5 m x 2.6 m)
•  De-silting Chamber of length (36 m x24 m)
• Free Flowing Pipe Type Water Conductor System of 235.75 m
• Fore bay, Intake pool; 3 Nos. of Penstock 175 m long
• Powerhouse of size (47.5 m x 18.4 m x 20.75 m)
• Tail Race Tunnel of length 86.55m with minimum tail water level of 1413.26

NIMU CHILLING HYDROELECTRIC PROJECT

AEMPL has been engaged to provide Engineering Consultancy Services for preparation of Detailed Project Report for Nimu Chilling HEP, Leh as per the guidelines of Alternate Hydro Energy Centre, Ministry of New and Renewable Energy, Government of India

Nimu Chilling Hydro Electric Project has been contemplated as a run of the river scheme situated in the Leh district of Jammu & Kashmir. The barrage site is located on River Zanskar just before its confluence with the mighty Indus River. The Project will utilize a gross head of 45 m and design discharge of about 59 cumecs for generation of 24 MW.

The Project comprises a 14.5 m high barrage, a rectangular fore-bay type power intake on the left bank, 5.6 m diameter horse shoe shaped head race tunnel of length 8.9 km, circular surge shaft of 22 m diameter & height 39.5 m, a single 200.0 m long 4.0 m diameter pressure shat/buried penstock, a surface power house housing 3 units of 8 MW. A 24 m long tail race channel conveys back into the existing reservoir of Nimo Bazgo HEP after power generation.

The following works have been completed by M/s Aquagreen Engineering Management Private Limited for Nimu Chilling HEP

• • Site survey and investigations..
  • Review of the PFR prepared by JKSPDCL.
  • Review the Construction & Equipment Planning.
  • Preparation of Detailed Project Report as per AHEC/MnRE guidelines including study on alternatives
  • EIA/EMP report for availing NOC from State Pollution Control Board
  • Site specific seismic parameter studies by IIT-Delhi
  • Mathematical Modeling of the Reservoir Sedimentation

SANKOO HYDROELECTRIC PROJECT

AEMPL has been engaged to provide Engineering Consultancy Services for preparation of Detailed Project Report for Sankoo HEP, Kargil as per the guidelines of Alternate Hydro Energy Centre, Ministry of New and Renewable Energy, Government of India

Sankoo Hydro Electric Project has been contemplated as a run of the river scheme situated in the Kargil district of Jammu & Kashmir. The barrage site is located on River Suru. The Project will utilize a gross head of 58 m and design discharge of about 36 cumecs for generation of 19 MW.

The Project comprises a 10 m high barrage, a rectangular fore-bay type power intake on the left bank, Surface de-silting basin, 4.5 m diameter horse shoe shaped head race tunnel of length 1.9 km, circular surge shaft of 16 m diameter & height 53 m, a single 157 m long 3.5 m diameter pressure shat/buried penstock, a surface power house on the left bank of River Suru housing 2 units of 9.25 MW. A 46 m long tail race channel conveys back into River Suru after power generation.

The following works have been completed by M/s Aquagreen Engineering Management Private Limited for Sankoo HEP

• • Site survey and investigations.
  • Review of the PFR prepared by JKSPDCL.
  • Review the Construction & Equipment Planning.
  • Preparation of Detailed Project Report as per AHEC/MnRE guidelines including study on alternatives
  • EIA/EMP report for availing NOC from State Pollution Control Board
  • Mathematical Modeling of the Reservoir Sedimentation

MANGDAM SANGRA HYDROELECTRIC PROJECT

AEMPL has been engaged to provide Engineering Consultancy Services for preparation of Detailed Project Report for Mangdum Sangra HEP, Kargil as per the guidelines of Alternate Hydro Energy Centre, Ministry of New and Renewable Energy, Government of India.

Mangdum Sangra Hydro Electric Project has been contemplated as a run of the river scheme situated in the Kargil district of Jammu & Kashmir. The barrage site is located on River Suru. The Project will utilize a gross head of 82.76 m and design discharge of about 27.70 cumecs for generation of 19 MW.

The Project comprises a 10 m high barrage, a rectangular fore-bay type power intake on the left bank, Surface de-silting basin, 4.0 m diameter horse shoe shaped head race tunnel of length 2.8 km, circular surge shaft of 10 m diameter & height 54 m, a single 358 m long 3.10 m diameter pressure shat/buried penstock, a surface power house on the left bank of River Suru housing 2 units of 9.5 MW. A 60 m long tail race channel conveys back into River Suru after power generation.

The following works have been completed by M/s Aquagreen Engineering Management Private Limited for Mangdum Sangra HEP

• • Site survey and investigations.
  • Review of the PFR prepared by JKSPDCL.
  • Review the Construction & Equipment Planning.
  • Preparation of Detailed Project Report as per AHEC/MnRE guidelines including study on alternatives
  • EIA/EMP report for availing NOC from State Pollution Control Board
  • Mathematical Modeling of the Reservoir Sedimentation

DURBUK SHYOK HYDROELECTRIC PROJECT

AEMPL has been engaged to provide Engineering Consultancy Services for preparation of Detailed Project Report for Durbuk Shyok HEP, Leh as per the guidelines of Alternate Hydro Energy Centre, Ministry of New and Renewable Energy, Government of India.

Durbuk Shyok Hydro Electric Project has been contemplated as a run of the river scheme situated in the Leh district of Jammu & Kashmir. The barrage site is located on River Shyok Gong/Tnagtse Nala which is the left bank tributary of the Shyok River. The Project will utilize a gross head of 221.5 m and design discharge of about 12 cumecs for generation of 19 MW.

The Project comprises a 12 m high barrage, a rectangular fore-bay type power intake on the right bank, 3.0 m diameter horse shoe shaped head race tunnel of length 5.2 km, circular surge shaft of 6 m diameter & height 65.15 m, a single 940 m long 1.75 m diameter pressure shat/buried penstock, a surface power house on the left bank of River Shyok housing 2 units of 9.5 MW. A 75 m long tail race channel conveys back into River Shyok after power generation.

The following works have been completed by M/s Aquagreen Engineering Management Private Limited for Durbuk Shyok HEP

• • Site survey and investigations.
  • Review of the PFR prepared by JKSPDCL.
  • Review the Construction & Equipment Planning.
  • Preparation of Detailed Project Report as per AHEC/MnRE guidelines including study on alternatives
  • EIA/EMP report for availing NOC from State Pollution Control Board
  • Site specific seismic parameter studies by IIT-Delhi
  • Mathematical Modeling of the Reservoir Sedimentation

BHILANGNA-IIB SMALL HYDROELECTRIC PROJECT

AEMPL engaged to provide Engineering Consultancy Services for the Review and Preparation of Detailed Project Report of Bhilangna-IIB Small Hydroelectric Project.

Bhilangna-IIB SHEP is being developed by UJVN Limited, a Government of Uttarakhand enterprise.The project is proposed as a run-of-river scheme on the river Bhilangna in Tehri Garhwal District of Uttarakhand.

The project envisages construction of an ungated ogee weir across Bhilangna River to divert 24.93 cumecs flow into a water conductor system comprising Head Race Tunnel of size 3.5m, Horse-shoe shaped and 2.07km long; Surge Shaft of 11.0m dia and 38m high; Pressure Shaft of 2.8m dia and 62m long, Buried Penstock of same size and about 247m long, Branch Penstock of 1.6m dia and 35m long each and a surface Power House of size 45m (L) x 12.5m (W) x 27.0m (H) housing total three generating units of horizontal axis Francis Turbines. The flow after generation shall be diverted into River Bhilangna through a 6m wide tail race channel.

SORANG HYDROELECTRIC PROJECT

AEMPL engaged to provide Engineering Consultancy Services for the Review of Project Parameters and Design & Detailed Engineering Work of Penstock/ Pressure Shaft of Sorang Hydroelectric Project.

Sorang Hydro Electric Project (2x50MW) is being developed by Himachal Sorang Power Private Limited (HSPL). The project was awarded to HSPL by Himachal State Electricity Board (HSEB). The project is located on Sorang Khad, a right bank tributary of the River Sutluj near Sorang Dongri Village in Kinnanur District of Himachal Pradesh.

The project envisages construction of a trench weir across Sorang Khad to divert 17.34 cumecs flow (2 units) into a water conductor system comprising Head Race Tunnel of size 3.2m x 4.0m, D-shaped and 1.45km long; Surge Shaft of 6.5m dia and 56.1m high; Surface Penstock of 3.25m dia and about 826m long followed by a steel lined Pressure Shaft of about 287m long and an underground Power House of size 79m (L) x 16.5m (W) x 39.5m (H) housing total three (presently two) generating units of Pelton Turbines. The flow after generation shall be diverted into River Sutluj through a 4.5×5.0 m D-shaped, 166 m long tail race tunnel.

CHATTEN SMALL HYDROELECTRIC PROJECT

M/s N.T Lachenpa, Govt. Contractor, Sikkim Power Development Corporation Limited (SPDCL)

AEMPL engaged to provide Engineering Consultancy Services for Chatten Small Hydro Power Project which includes the following components detailed design and preparation of construction drawings. They are

• • 1. Trench Weir
  • 2. Intake Structure
  • 3. De-silting Tank
  • 4. Surge Shaft
  • 5. Y-Junction Penstock
  • 6. Power House

Chatten Small Hydro Electric Project has been contemplated as a run of the river scheme situated in the Chatten Village, Mangan District, North Sikkim. The trench weir is located across Chyagachu River. The Project would utilize a net head of 258.74 m and design discharge of 1.5 Cumecs for generation of 3 MW.

The Project comprises of trench weir, 1 No. of intake channel along with De-silting arrangement on right bank of Chyagachu River, one number of head race pipe of 800mm (ID), 4m diameter surge tank, 1 no. of 429m long main surface penstock which bifurcates into two numbers of 40m long branch penstock, Surface power house housing 2 units of 1.5 MW and 1 No. of 1.5 (W) x 1.2 (H) m rectangular-shaped, 110m long Tail Race Channel.

AYAGO HYDROELECTRIC PROJECT

Ministry of Energy & Mineral Development (MEMD), The Republic of Uganda

Murchison Falls National Park District, Uganda

AEMPL engaged to provide Engineering Consultancy Services for the Review of the Detailed Feasibility Study and Supervision of the Construction of Ayago Hydro Power Project and its associated Transmission Interconnection.

Ayago Hydro Electric Project has been contemplated as a run of the river scheme situated in the Murchison Falls National Park District of Uganda. The Diversion Dam is located across Nile River. The Project would utilize a head of 80 m and design discharge of 938 Cumecs for generation of 840 MW.

The Project comprises of 24 m high Concrete Gravity dam, 6 Nos. of intake on left bank of Nile River feeding 6 Nos. of 6.6 m circular shaped pressure shaft, underground power house housing 6 units of 113.33 MW and 3 Nos. of 13 (W) x 15 (H) m D-shaped, 7.2 km long Tail Race Tunnel.

MALANA – II HYDROELECTRIC PROJECT

Everest Power Private Limited

Kullu District, Himachal Pradesh, India

Aquagreen Engineering Management Pvt. Ltd. (AEMPL) providing the Engineering Consultancy Services for effective operation of plant including monitoring and post construction maintenance activities.

Malana – II Hydro Electric Project (100 MW) consists of the following components:

• A 45 m high concrete gravity dam of length 213 m including 63 m of key wall in the left bank.
• One 2.9 m D-Shaped Head Race Tunnel of length 4.98 km to convey 20 cumecs for power generation
• 6 m diameter circular simple type surge shaft of 80 m height.
• A 2.5 m pressures shaft of length 758.60 m which includes top horizontal, vertical and bottom horizontal segments.
• An underground power house housing 2 nos. of vertical axis Pelton turbines measuring 67.5 m (l) x 17.5 m (w) x 35.85 m (h).
• A 5.4 m x 6.75 m D-shaped tail race tunnel of length 380 m.
• The project utilizes a gross head of 602 m and design discharge of 20 cumecs to generate 409 MU of energy in 90 % dependable year.

The Project is a high head, run-of-river project with 4 hour pondage and is located on Malana Khad, a tributary of the Parbati River, Himachal Pradesh. The Commercial Operation Date (COD) of the project was declared on 12th July 2012. AEMPL has involved in the preparation of post construction activities and monitoring which are required for effective operation.

KYNSHI – I HYDROELECTRIC PROJECT

Athena Kynshi Power Pvt. Ltd.

Meghalaya, India

AEMPL engaged to provide Engineering Consultancy Services for Preparation of Pre-feasibility Report (PFR), Detailed Project Report (DPR), Tender Design and assistance in award of EPC Contract for 270 MW Kynshi – I HE Project, Meghalaya.

Kynshi – I Hydro Electric Project has been contemplated as a run of the river scheme situated in the West Khasi Hills district of Meghalaya. The Dam site is located on River Kynshi, D/s of confluence of Umkyrtha River with Kynshi River. The Project will utilize a gross head of 581.00 m and design discharge of 54.86 cumecs for generation of 270MW.

The Project comprises a 58.10 m high Concrete Gravity dam, two de-silting basins of 12 m X 21.5 m X 200 m; 6.89 km long 4.5 m diameter HRT, 67.5 m high 8.5 m diameter surge shaft, 1855 m long & 3.6 m diameter pressure tunnel including horizontal & vertical shaft. An underground power house housing 2 units of 135 MW. A 2.5 km long 5.25 m diameter tunnel conveys back the water back to River Kynshi after power generation. Design Energy is 1067 MU in 90% dependable year.

TEESTA – III HYDROELECTRIC PROJECT

WAPCOS Limited

North Sikkim, Sikkim, India

AEMPL engaged to provide Review Engineering Consultancy Services for 1200 MW Teesta – III HE Project, Sikkim and further provision of Design and Project Management Consultancy Services for Balance works of the project

Teesta – III Hydro Electric Project has been contemplated as a run of the river scheme situated in the North Sikkim district of Sikkim. The Dam site is located on River Teesta just d/s of confluence of River Laching Chu and Lachung Chu. The Project will utilize a gross head of 817 m and design discharge of 175 cumecs for generation of 1200 MW.

The Project comprises a 60 m high Concrete Faced Rockfill Dam, two de-silting basins of 17m X 23m X 320m; 14.3km long 7.5m diameter HRT, 15.5 m diameter circular surge shaft of 160m height, 1806.67m long & 2 nos. of 4m diameter pressure tunnels including vertical shaft and inclined shaft of length about 1650 m. An underground power house housing 6 units of 200 MW. A 1.2 km long 8.2×8.0 m tunnel conveys back the water back to River Teesta after power generation.

The following works have been completed by M/s Aquagreen Engineering Management Private Limited for the Review Engineering during Construction Stage (2008-2010).

• To study and evaluate the construction design/ drawing from the point of view of construction suitability to site condition.
• Review the works under execution with the objective to achieve the scheduled progress.
• Review the Construction & Equipment Planning.
• Review the implementation of QA/ QC program implemented by the contractor and engineering agency.

The following works are currently being executed by M/s Aquagreen Engineering Management Private Limited for the Design and Project Management Consultancy Services for Balance works (2015 – Ongoing)

• Detailed Design Service for balance works
• Construction supervision services on behalf of WAPCOS during execution of the Project including supervising construction, equipment installation and commissioning with a supervision team, undertaking quality assurance on the site and ,oversee the contractors’ quality control systems, provide expertise as needed on site on a case by case basis. Review the Construction & Equipment Planning.
• Vetting of Contractor Claims for the Project
• Preparation of DPR of Dam Toe Power House for the Project

NABA HYDROELECTRIC PROJECT

Andra Power Pvt. Ltd.

Arunachal Pradesh, India

AEMPL engaged to provide Engineering Consultancy Services for preparation of Pre-feasibility Report (PFR), Detailed Project Report (DPR), Preparation Tender Documents of 1000 MW Naba Hydroelectric Project, Arunachal Pradesh and obtaining approval from statutory authorities.

Naba H.E. Project is located in upper reaches of Subansiri River, Arunachal Pradesh. The average river bed level at the dam site is about 870 m and FRL at the dam has been proposed at EL.1035 m. The Project will utilize a gross head of 245 m and design discharge of 468.22 cumecs for generation of 1000 MW.

Naba H.E Project envisages a construction of a 167 m high concrete gravity dam with 2 Nos. of 11 m diameter diversion tunnels as diversion structure, 2 Nos. of power intake with trash rack arrangement, 2 Nos. of 3.1 km & 3.85 km long 8.7 m diameter head race tunnel, 2 Nos. of 23.0 m diameter surge shaft& 85 m high, 2 Nos. of 7.25 m diameter steel lined pressure shaft which include penstock of dia. 5.75 m on bifurcation. Underground power house housing 4 units of 250 MW each. Design Energy is 4249.42 MU in 90% dependable year.

NIARE HYDROELECTRIC PROJECT

Andra Power Pvt. Ltd.

Arunachal Pradesh, India

AEMPL engaged to provide Engineering Consultancy Services for preparation of Pre-feasibility Report (PFR) of 800 MW NiareHE Project, Arunachal Pradesh and obtaining approval from statutory authorities.

Niare H.E. Project is located in upper reaches of Subansiri River, Arunachal Pradesh. The average river bed level at the dam site is about 1200 m and FRL at the dam has been proposed at EL.1280 m. The Project will utilize a gross head of 228 m and design discharge of 407.50Cumecs for generation of 800 MW.

Niare H.E Project envisages of 101.56 m high concrete gravity dam with 2Nos. of11m diameter diversion tunnels as diversion structure, 2Nos of power intake with trash rack arrangement, 2Nos. of 3.14 km&3.10km long 8.50 m diameter head race tunnel, 2Nos. of 20.0 m diameter surge shaft&100m high, 2Nos. of 486.50mlong 7.25 m diameter steel lined pressure shaft which include penstock of dia. 5.50m on bifurcation. Underground power house housing4 units of 200 MW each. Design Energy is 3647.39MU in 90% dependable year.

DENGSER HYDROELECTRIC PROJECT

Arista Power Pvt. Ltd.

Arunachal Pradesh, India

AEMPL engaged to provide Engineering Consultancy Services for preparation of Pre-feasibility Report (PFR) of 520 MW Dengser Hydro Electric Project, Arunachal Pradesh and obtaining approval from statutory authorities.

Dengser Hydro Electric Project is located in upper reaches of Subansiri River, Arunachal Pradesh. The average river bed level at the dam site is about EL. 531 m and FRL at the dam has been proposed at EL. 620 m. The Project will utilize a gross head of 126.63 m and design discharge of 470.90 cumecs for generation of 520 MW.

Dengser H.E Project envisages of 121.19 m high concrete gravity dam with 2 Nos. of 11 m diameter diversion tunnels as diversion structure, 2Nos of power intake with trash rack arrangement, 2 Nos. of 5.11 km & 4.96 km long 9.20 m diameter head race tunnel, 2 Nos. of 25.0 m diameter surge shaft & 50 m high & 2 Nos. of 8.10 m diameter steel lined pressure shaft each of 324 m & 264 m in length which include penstock of dia. 4.57 m on bifurcation. Underground power house housing4 units of 130 MW each. Design Energy is 1986.92 MU in 90% dependable year.

ANJAW HYDROELECTRIC PROJECT 

Anjaw District, Arunachal Pradesh, India

AEMPL engaged to provide Engineering Consultancy Services for preparation of Detailed Project Report (DPR), Tender Design and assistance in award of EPC Contract of 270 MW Anjaw HE Project, Arunachal Pradesh.

The proposed project site is 335 km away from Dibrugarh which is nearest airport. The barrage site is located upstream of confluence of River Lohit & River Dau and surface Powerhouse is located on right bank of Lohit River at about 70 m downstream of the barrage.

The average river bed level at the dam site is about EL 550.00 m and FRL at the dam has been proposed at EL 580.00 m. The project consist of 30.0 m high barrage of length 415 m, 7 nos. of 7 m dia. penstocks of length of about 50 m, surface powerhouse having 7 units of 38.5 MW. The project would generate 1146 MU in 90% dependable year.

PEMASHELPU HYDROELECTRIC PROJECT

Mechuka Hydro  Power Private Limited (Greenko Group)

Arunachal Pradesh, India

Aquagreen Engineering Management Private Limited (AEMPL) provided complete Engineering and Project Management Services for all civil works associated with the 81 MW Pemashelpu Hydroelectric Project.

The project is a run of river Hydroelectric project on the Yargyap Chu River, a major tributary of Siang River in West Siang District, Arunachal Pradesh. AEMPL was involved in preparation of Pre-feasibility, Feasibility and Detailed Project Report (DPR) which includes civil, hydro mechanical and electromechanical works and assistance in obtaining clearance from statutory authorities.

 DEMWE LOWER HYDROELECTRIC PROJECT

Athena Demwe Power Pvt. Ltd.

Lohit District, Arunachal Pradesh, India

AEMPL engaged to provide Engineering Consultancy Services for Pre-construction stage investigations & Techno-economic optimization of the Project Layout, Detailed Design & Engineering Services during Project execution of 1750 MW Demwe Lower HE Project, Arunachal Pradesh

Demwe Lower Hydro Electric Project has been contemplated as a run of the river scheme situated in the Lohit district of Arunachal Pradesh. The Dam site is located on River Lohit, upstream of Parasuram Kund. The Project will utilize a gross head of 120.00m and design discharge of 1729 cumecs for generation of 1750 MW.

The Project comprises a 165 m high Concrete Gravity dam, five numbers of 10.0 m diameter pressure shafts of 450 to 600 m long. A surface power house housing 5 units of 342 MW each and one 40 MW. Design Energy is 6322 MU in 90% dependable year.

DEMWE UPPER HYDROELECTRIC PROJECT

Lohit Urja Power Pvt. Ltd.

Arunachal Pradesh, India

AEMPL engaged to provide Engineering Consultancy Services for preparation of Detailed Project Report (DPR), Tender Design and assistance in award of EPC Contract of 1080 MW Demwe Upper HE Project, Arunachal Pradesh.

Demwe Upper HE Project is located in Anjaw District of Arunachal Pradesh on Lohit river. The proposed project site is 80 km away from Tezu which is District HQ of Lohit. The Dam site is located about 12.8 km downstream of confluence of Dalai River and underground Powerhouse is located on right bank of Lohit River at 150 m downstream of the dam axis.

The average river bed level at the dam site is about EL 440.00 m and FRL at the dam has been proposed at EL 525.00 m. The project consist of 131.0 m high composite dam, 5 nos. of 10.0 m dia. pressure shaft length varies from 150.0 m to 285.0 m, an underground powerhouse having 5 units of 206 MW  and 1 unit of 50 MW. The project would generate 3991 MU in 90% dependable year.