Koteshwar HEP, located approximately 22 km downstream of Tehri Dam, is an integral part of the Tehri Hydro Power Complex (2,400 MW). The project comprises a 97.5 m high concrete gravity dam across the River Bhagirathi and a surface powerhouse equipped with four 100 MW Francis turbine-generator units.
Commissioned during 2011–12, Koteshwar HEP plays an important role in regulating releases from the Tehri Reservoir, maintaining downstream river flows for irrigation and ecological requirements, and supporting the safe flow of water through downstream locations including Devprayag, Rishikesh and Haridwar. Its reservoir also serves as the lower balancing reservoir for the Tehri Pumped Storage Plant (1,000 MW).
 

GENERAL FEATURES

ParticularsDetails
Installed Capacity 400 MW (4X100 MW)
Location Tehri Garhwal, Uttarakhand
Design Energy 1155 MU
Commercial Operation Date
  • Unit-1: 01.04.2011
  • Unit-2: 26.10.2011
  • Unit-3: 13.02.2012
  • Unit-4: 01.04.2012
Beneficiary States Uttar Pradesh, Uttarakhand, Delhi,
Rajasthan, Punjab, Jammu & Kashmir,
Haryana, Himachal Pradesh and
Chandigarh

KEY TECHNICAL FEATURES

ParticularsDetails
Dam TypeConcrete Gravity Dam
Dam Height97.5 m
Gross Reservoir Storage88.9 MCM
 
Live Storage Capacity 35.0 MCM
Full Reservoir Level (FRL)EL 612.5 m
Spillway4-bay gated spillway
Penstocks4 × 6.2 m diameter
Powerhouse Surface Powerhouse, Right Bank
Generating Units4 × 100 MW
Turbine Type Vertical Francis
Maximum / Minimum Head75 m / 58 m
Rated Head69 m
Rated Discharge per Unit 161 cumecs
Switchyard400 kV Outdoor
  1. Peaking Power- 400 MW
  2. Design Energy-1155MU ( 90% dependable year)
  3. Regulation of water releases from Tehri Reservoir for irrigation Purposes
  4. Koteshwar Reservoir will function as the pre requisite lower reservoir for Tehri PSP
S.No.DescriptionGeneration (MU)
1Generation during August 2026219.97
2Cumulative Generation during FY 2026-27 (up to August 2026)502.61
Last Updated on 1/10/2026