Subansiri Lower Hydroelectric project Recently, the GOI had provided 2,000 Mega Watt Subansiri Lower Hydroelectric Project located in Arunachal Pradesh and Assam to India. This project is getting executed by NHPC Limited with the top level of Elevation Level (EL) 210 M which was executed by the Union Minister for Power and New & Renewable Energy Shri R. K. Singh, where NHPC has informed that more than 90% of the total work of the project has already been completed. The construction of all major components, including Dam, Power House and Hydromechanical Works till date.
Subansiri Lower Hydroelectric project
Subansiri Lower Hydroelectric project explained
| Event | Date |
|---|---|
| Construction Commencement | January 2005 |
| Forest Clearance Obtained | October 12, 2004 |
| Construction Stalled | December 2011 |
| Construction Resumed | October 15, 2019 |
| Clearance by NGT | October 2019 |
NHPC Limited began construction of the Subansiri Lower Hydroelectric Project in January 2005 after obtaining forest clearance on October 12, 2004. However, construction need to stop the construction from December 2011 to October 2019 as a sequence of local protests. The project construction resumed on October 15, 2019, following clearance by the National Green Tribunal. It is located partly in Assam and partly in Arunachal Pradesh, where the dam is located in the Dhemaji district of Assam, 2.3km away from Gerukamukh, while the powerhouse is located in the Subansiri district of Arunachal Pradesh will be expected to supply 2,000 MW of power when completed. The Subansiri Lower Hydroelectric project is 116 m (381 ft) tall, measured from the river bed and 210 m (690 ft) from the deepest foundation with the length will be 284 m (932 ft) and with the structural volume of 2,250,000 m3 (2,942,889 cu yd). The dam’s reservoir storage has capacity of 1.37 km (1,110,677 acre⋅ft), of which .44 km3 (356,714 acre⋅ft) tp be used power generation or irrigation
| Project Name | Subansiri Lower Hydroelectric project |
|---|---|
| Official Name | Subansiri Lower Hydroelectric Power Project (SLHEP) |
| Country | India |
| Location | Arunachal Pradesh |
| Coordinates | 27°33′13″N 94°15′31″E |
| Status | Under construction |
| Construction Began | December 2007 |
| Construction Cost (Est.) | Rs. 62.9 billion (December 2002 est.) |
| Owner(s) | NHPC Limited |
| Dam Type | Concrete gravity |
| Impounds | Lower Subansiri River |
| Dam Height | 116 m (381 ft) |
| Dam Height (Foundation) | 130 m (427 ft) |
| Dam Length | 284 m (932 ft) |
| Dam Volume | 2,250,000 m3 (2,942,889 cu yd) |
| Spillway Type | Ski jump |
| Spillway Capacity | 37,500 m3/s (1,324,300 cu ft/s) |
| Reservoir Total Capacity | 1.37 km3 (1,110,677 acre⋅ft) |
| Reservoir Active Capacity | 0.44 km3 (356,714 acre⋅ft) |
| Reservoir Surface Area | 33.5 km2 (13 sq mi) |
| Power Station Operator | NHPC Limited |
| Commission Date (Est.) | 2016-2018 |
| Turbines | 8 × 250 MW Francis-type |
| Installed Capacity | 2,000 MW (max. planned) |
| Annual Generation | 7,421 GW·h |
| Website | https://www.nhpcindia.com/Projects/English/Scripts/Prj_Introduction.aspx?Vid=23 |
Subansiri Lower Hydroelectric project
In which state Subansiri hydropower project is located?
Subansiri hydropower project is located partly in Assam and partly in Arunachal Pradesh, where the dam is located in the Dhemaji district of Assam, 2.3km away from Gerukamukh, while the powerhouse is located in the Subansiri district of Arunachal Pradesh
Who is the contractor of Subansiri hydropower project?
NHPC Ltd. Patel Engineering is the contractor of Subansiri hydropower project