Tehri Pumped Storage Plant (1000 MW), also referred to as Tehri PSP.
India · Energy
In-depth researchRelease 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
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
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.
No material timeline events have been released.
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