A four-hour grid-scale battery award in eastern India, tracked as part of our tender tracker.
NTPC Green Energy West Bengal battery project
Power
200 MW
Energy
800 MWh
Duration
4 hours
Discharge signature — long-duration, runs 4h of 8h at rated power
Eight hundred megawatt-hours at a four-hour ratio — a long-duration block sized to carry a full evening peak, not just its sharpest hour.
pv magazine India ↗What it means
The ratio is the story. Eight hundred megawatt-hours behind 200 MW gives four hours at rated power, which puts this project in the long-duration band rather than the two-hour peaking shape most state tenders have settled on — the distinction we unpack in our 2-hour vs 4-hour duration guide. Four hours changes what the asset can be paid for: it can cover the whole evening ramp, absorb a full midday solar surplus, and stack capacity value on top of arbitrage.
Eastern India has historically drawn less storage investment than the western solar belt, so a four-hour award in West Bengal is a meaningful data point for the region — it lands alongside POWERGRID’s 3 GWh West Bengal tender, and against the state framework set out in our West Bengal BESS policy explainer. As a central PSU developer, NTPC’s group companies remain among the largest single sources of standalone storage demand in the country.
As of this briefing the project is at the award stage — construction and commissioning timelines will firm up as it progresses.
Sizing a long-duration battery for your own load? Model the economics, or talk to our team.