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CapexCue · Public evidence · Printed 11 Nov 2026
Explore projects / Project dossier

Tehri Pumped Storage Plant (1000 MW), also referred to as Tehri PSP.

India · Energy

In-depth research Release 1

Project scope

A 1,000 MW variable-speed pumped-storage plant comprising four 250 MW reversible units. It uses Tehri Dam Reservoir as the upstream reservoir and Koteshwar Dam Reservoir as the downstream reservoir, with an underground powerhouse on the left bank of the Bhagirathi River. The source describes the plant as designed for peaking power and grid support.

Reported status and procurement

Reported development

THDC states the plant was fully commissioned at its full 1,000 MW capacity as of 12 April 2026.

Procurement availability
Unknown / not established

A source report alone does not establish current progress or an open buying window.

Project summary

THDC identifies Tehri Pumped Storage Plant as a 1,000 MW facility in Tehri Garhwal, Uttarakhand. Its stated configuration is four 250 MW variable-speed reversible units, using the Tehri Dam Reservoir upstream and Koteshwar Dam Reservoir downstream, with an underground powerhouse on the Bhagirathi River’s left bank. THDC states the plant was fully commissioned at its full capacity as of 12 April 2026; the page lists commercial operation dates of 07.06.2025, 10.07.2025, 12.12.2025 and 12.04.2026 for Units 1–4, respectively. The project section says “Last Updated on 7/10/2026”; the footer separately says “Last updated at 17/10/2026”.

Evidence limits and unknowns

The supplied page does not provide procurement, supplier-package, budget or buying-window details; whether any such opportunities exist cannot be determined from this page.

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Project metadata

Country
India
Based on reviewed release evidence
Region
Asia
Category
Energy
Derived from released evidence
Physical assets
Pumped Hydro

Based on this release's supporting evidence. Unresolved fields remain unclassified; these labels do not establish current progress or a buying window.

Released facts and supporting evidence

Each fact retains its source, uncertainty and time context. If a publisher page moves or is unavailable, use the recorded quotation and observation date below.

Date

Source reported

Commercial operation dates listed: Unit 1 — 07.06.2025; Unit 2 — 10.07.2025; Unit 3 — 12.12.2025; Unit 4 — 12.04.2026.

Attributed to thdc.co.in.

Source: thdc.co.in · publication date not recorded · observed 2026-10-17

Sources and evidence · thdc.co.in
Source published: Not recordedObserved: 2026-10-17

thdc.co.in
Attributed to thdc.co.in

Technical record · Commercial operation dates listed: Unit 1 — 07.06.2025; …
Evidence location
/html/body/div/div[3]/div/div/div/aside[1]/section/div[2]/div/div/div/div[2]/div[2]/div/div/div/table[1]
Claim confidence
0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference
2365b59d-ceb1-421b-ab2f-67fc0aff71d2
Evidence reference
bb37d2f1-bc02-4403-b904-1965154e4344
Source revision
77478f93-0537-497c-8cb8-e88f3b50e4cf
Content fingerprint
5429e32fee06cceca5f3b46c69397aa8e41cad9818899007e73c6f16bb9223a3
Source address
https://thdc.co.in/en/node/1145

Project name

Source reported

Tehri Pumped Storage Plant (1000 MW), also referred to as Tehri PSP.

Attributed to thdc.co.in.

Source: thdc.co.in · publication date not recorded · observed 2026-10-17

Sources and evidence · thdc.co.in
Source published: Not recordedObserved: 2026-10-17

thdc.co.in
Attributed to thdc.co.in

Technical record · Tehri Pumped Storage Plant (1000 MW), also referred …
Evidence location
/html/body/div/div[2]/div/div/div/div/h2
Claim confidence
0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference
02207fa9-ee6b-47d5-934a-84907f396546
Evidence reference
4baca7f4-7a92-4d3e-b18a-f7797524bec8
Source revision
77478f93-0537-497c-8cb8-e88f3b50e4cf
Content fingerprint
5429e32fee06cceca5f3b46c69397aa8e41cad9818899007e73c6f16bb9223a3
Source address
https://thdc.co.in/en/node/1145

Scope

Source reported

A 1,000 MW variable-speed pumped-storage plant comprising four 250 MW reversible units. It uses Tehri Dam Reservoir as the upstream reservoir and Koteshwar Dam Reservoir as the downstream reservoir, with an underground powerhouse on the left bank of the Bhagirathi River. The source describes the plant as designed for peaking power and grid support.

Attributed to thdc.co.in.

Source: thdc.co.in · publication date not recorded · observed 2026-10-17

Sources and evidence · thdc.co.in
Source published: Not recordedObserved: 2026-10-17

thdc.co.in
Attributed to thdc.co.in

Technical record · A 1,000 MW variable-speed pumped-storage plant comprising four …
Evidence location
/html/body/div/div[3]/div/div/div/aside[1]/section/div[2]/div/div/div/div[1]/div[2]/div/div/div/p
Claim confidence
0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference
f6284600-9f16-4c0d-9388-ca172493cf47
Evidence reference
d02a5f57-c016-4de3-a031-93fdd9dfe907
Source revision
77478f93-0537-497c-8cb8-e88f3b50e4cf
Content fingerprint
5429e32fee06cceca5f3b46c69397aa8e41cad9818899007e73c6f16bb9223a3
Source address
https://thdc.co.in/en/node/1145

Sector

Source reported

Hydropower; pumped-storage electricity.

Attributed to thdc.co.in.

Source: thdc.co.in · publication date not recorded · observed 2026-10-17

Sources and evidence · thdc.co.in
Source published: Not recordedObserved: 2026-10-17

thdc.co.in
Attributed to thdc.co.in

Technical record · Hydropower; pumped-storage electricity.
Evidence location
/html/body/div/div[3]/div/div/div/aside[1]/section/div[2]/div/div/div/div[1]/div[2]/div/div/div/p
Claim confidence
0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference
d50e3317-0019-40cd-bc1b-8d9ed40e041d
Evidence reference
d02a5f57-c016-4de3-a031-93fdd9dfe907
Source revision
77478f93-0537-497c-8cb8-e88f3b50e4cf
Content fingerprint
5429e32fee06cceca5f3b46c69397aa8e41cad9818899007e73c6f16bb9223a3
Source address
https://thdc.co.in/en/node/1145

Current activity

Reported as actual

THDC states the plant was fully commissioned at its full 1,000 MW capacity as of 12 April 2026.

Attributed to thdc.co.in.

Source: thdc.co.in · publication date not recorded · observed 2026-10-17

Sources and evidence · thdc.co.in
Source published: Not recordedObserved: 2026-10-17

thdc.co.in
Attributed to thdc.co.in

Technical record · THDC states the plant was fully commissioned at …
Evidence location
/html/body/div/div[3]/div/div/div/aside[1]/section/div[2]/div/div/div/div[1]/div[2]/div/div/div/p
Claim confidence
0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference
d6e44ad7-3d52-47f9-b7c8-2bb0e671193f
Evidence reference
d02a5f57-c016-4de3-a031-93fdd9dfe907
Source revision
77478f93-0537-497c-8cb8-e88f3b50e4cf
Content fingerprint
5429e32fee06cceca5f3b46c69397aa8e41cad9818899007e73c6f16bb9223a3
Source address
https://thdc.co.in/en/node/1145

Location

Source reported

Tehri Garhwal, Uttarakhand.

Attributed to thdc.co.in.

Source: thdc.co.in · publication date not recorded · observed 2026-10-17

Sources and evidence · thdc.co.in
Source published: Not recordedObserved: 2026-10-17

thdc.co.in
Attributed to thdc.co.in

Technical record · Tehri Garhwal, Uttarakhand.
Evidence location
/html/body/div/div[3]/div/div/div/aside[1]/section/div[2]/div/div/div/div[2]/div[2]/div/div/div/table[1]
Claim confidence
0.90 on a 0–1 evidence-support scaleNot a probability of project success or procurement availability.
Claim reference
5b65ef37-19bb-4501-a72a-0e75125aa75b
Evidence reference
bb37d2f1-bc02-4403-b904-1965154e4344
Source revision
77478f93-0537-497c-8cb8-e88f3b50e4cf
Content fingerprint
5429e32fee06cceca5f3b46c69397aa8e41cad9818899007e73c6f16bb9223a3
Source address
https://thdc.co.in/en/node/1145
Source report history

Prior and superseded states remain labelled. Dates below identify source publication when known, otherwise source observation. They are not assumed event dates; each fact retains its own time qualifications.

  1. No material timeline events have been released.

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