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

Publisher: CapexCue
Canonical dossier: <https://capexcue.com/projects/tehri-pumped-storage-plant-1000-mw-also-referred-to-as-tehri-psp-a158ea2b-0d7/>
Dossier reference: release 1 (42795874-2320-4a13-9558-7c486e2b7194)

Released project intelligence

Oldest supporting observation: 2026-10-17T14:12:04.224464+00:00
Dossier released: 2026-10-17T14:17:01.016400+00:00
Source report dates and capture dates are listed per fact below; neither establishes an event date.

## 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.

Current purchasing availability: unknown.
Source-dated plans do not establish current progress or available supplier packages.

## Project metadata

Country: India
Region: Asia
Physical assets: Pumped Hydro
Derived from the exact released evidence; unresolved fields remain unclassified.

## Project category

Energy
Derived from the reviewed scope statement; delivery stage remains unclassified.
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.
Source: thdc.co.in — https://thdc.co.in/en/node/1145 | published unknown | observed 2026-10-17T14:12:04.224464+00:00

Project overview
Oldest decisive evidence: 2026-10-17T14:12:04.224464+00:00
Newest evidence: 2026-10-17T14:12:04.224464+00:00
Knowledge reviewed: 2026-10-17T14:15:17.082524+00:00
Publication reviewed: 2026-10-17T14:16:46.890904+00:00

## Date
Commercial operation dates listed: Unit 1 — 07.06.2025; Unit 2 — 10.07.2025; Unit 3 — 12.12.2025; Unit 4 — 12.04.2026.
Status: reported
Attribution: thdc.co.in
Source: thdc.co.in — https://thdc.co.in/en/node/1145 | published unknown | observed 2026-10-17T14:12:04.224464+00:00

## Name
Tehri Pumped Storage Plant (1000 MW), also referred to as Tehri PSP.
Status: reported
Attribution: thdc.co.in
Source: thdc.co.in — https://thdc.co.in/en/node/1145 | published unknown | observed 2026-10-17T14:12:04.224464+00:00

## 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.
Status: reported
Attribution: thdc.co.in
Source: thdc.co.in — https://thdc.co.in/en/node/1145 | published unknown | observed 2026-10-17T14:12:04.224464+00:00

## Sector
Hydropower; pumped-storage electricity.
Status: reported
Attribution: thdc.co.in
Source: thdc.co.in — https://thdc.co.in/en/node/1145 | published unknown | observed 2026-10-17T14:12:04.224464+00:00

## Activity
THDC states the plant was fully commissioned at its full 1,000 MW capacity as of 12 April 2026.
Status: actual
Attribution: thdc.co.in
Source: thdc.co.in — https://thdc.co.in/en/node/1145 | published unknown | observed 2026-10-17T14:12:04.224464+00:00

## Location
Tehri Garhwal, Uttarakhand.
Status: reported
Attribution: thdc.co.in
Source: thdc.co.in — https://thdc.co.in/en/node/1145 | published unknown | observed 2026-10-17T14:12:04.224464+00:00


## Cite this dossier

CapexCue — Tehri Pumped Storage Plant (1000 MW), also referred to as Tehri PSP. — dossier released 2026-10-17T14:17:01.016400+00:00, release 1 (42795874-2320-4a13-9558-7c486e2b7194) — https://capexcue.com/projects/tehri-pumped-storage-plant-1000-mw-also-referred-to-as-tehri-psp-a158ea2b-0d7/.

For current information and later dossier updates, visit <https://capexcue.com/projects/tehri-pumped-storage-plant-1000-mw-also-referred-to-as-tehri-psp-a158ea2b-0d7/>.
This file records the release identified above; the current dossier may change.