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NTPC Green Energy Invites Bids for Battery Containers and PCS Supply for 40 GWh BESS Projects

NTPC Green Energy has invited bids for the supply of battery containers and grid-forming power conversion systems (PCS) for its 10 GW/40 GWh BESS projects, covering a total deliverable capacity of 40.58 GWh across three phases.

November 10, 2026. By Mrinmoy Dey

NTPC Green Energy has floated a tender for the supply of Battery Containers and Grid-forming PCS for 10 GW/40 GWh BESS projects.

The scope of work includes the supply of LFP-based containerised battery systems along with grid-forming power conversion systems (PCS), supervision of erection, installation and commissioning at project sites up to the PCS output terminals, and comprehensive service and maintenance for 15 years from the commissioning date of each project under a Long-Term Service Agreement (LTSA).

All bids must be accompanied by bid security in the amount and form specified in the bidding documents. Bidders may participate in any one or more blocks across the three phases, with a total deliverable capacity of 40.58 GWh. Phase 1 comprises three blocks of 4.98 GWh, 6.60 GWh and 5.84 GWh; Phase 2 comprises one block of 4.56 GWh; and Phase 3 comprises three blocks of 5.80 GWh, 6.80 GWh and 6.00 GWh. The minimum bidding quantity is one complete block, and bids for partial block capacities will be rejected.

Bidders must furnish INR 50 crore as bid security for quoted capacity up to 5 GWh, INR 100 crore for capacities between 5-10 GWh and INR 200 crore for capacities above 10 GWh.

The last date for submission of bids is December 8, 2026 till 3:00 PM. The techno-commercial bids will be opened on the same day at 3:30 PM.

The bidder must meet any one of the following eligibility criteria. It should have manufactured and supplied containerised battery systems with a cumulative capacity of at least 4,000 MWh through a maximum of 10 orders in the last three years, including at least one order of 500 MWh.

Alternatively, an Indian-registered company must have manufactured and supplied containerised battery systems for grid-connected BESS with a cumulative capacity of at least 80 MWh, including one order of at least 20 MWh. It must associate with a qualified battery manufacturer meeting the 4,000 MWh supply requirement.

An Indian-registered company with experience in supplying, installing and commissioning grid-connected BESS projects with a cumulative capacity of at least 80 MWh, including one project of at least 20 MWh, is also eligible, provided it associates with a qualified battery manufacturer meeting the 4,000 MWh requirement.

Another qualifying route is for an Indian-registered company that has designed, supplied and commissioned grid-connected solar or wind power projects with a cumulative capacity of at least 40 MW AC, including one project of at least 10 MW AC. Such a bidder must also associate with a qualified battery manufacturer meeting the 4,000 MWh requirement.

Alternatively, the bidder must have executed at least one industrial project in the power, steel, oil and gas, petrochemical, fertiliser, cement or other process industries during the last 10 years, along with at least one electrical substation of 33 kV or above, either as a developer or EPC contractor.

For the BESS supply, installation and solar/wind experience routes, the bidder and qualified battery manufacturer must jointly submit an undertaking accepting joint and several responsibility for complete contract performance.

The bidder must have an average annual turnover over the preceding three financial years of at least INR 69 lakh/MWh. Its net worth must be at least 25 percent of its paid-up share capital as of the end of the preceding financial year and must not have eroded by more than 30 percent over the last three financial years.

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Energy Storage

NTPC Green Energy

NTPC Green Energy invites bids

Battery containers and PCS supply

NTPC Green BESS Supply tender

Grid-forming PCS supply tender