The Electricity Department of the Andaman & Nicobar Administration has invited bids to develop a 20 MWh battery energy storage system (BESS) project at Dollygunj in Sri Vijayapuram, Andaman.

The project will be developed under the renewable energy service company model.

The project will comprise two sub-systems, one with a rating of 4 MW/4 MWh (ESS-1) and the other with a rating of 4 MW /16 MWh (ESS-2).

The last date to submit the bids is February 16, 2026. Bids will be opened the following day.

Bidders must submit ₹12 million (~$133,003) as the earnest money deposit.

The successful bidder must submit a performance bank guarantee of ₹30 million (~$332,508).

The scope of work specifies that the successful bidder will be responsible for setting up the BESS and interconnecting it with the grid.

The BESS will be charged using surplus solar power during the day.

The project will be interconnected to the grid through loop in-loop-out connection at the 33 kV grid network of ED-Andaman & Nicobar Island at Dollygunj. The maintenance of the transmission system will be the responsibility of the developer and will be undertaken entirely at its cost.

The developer should guarantee a minimum availability of 95% on an annual basis, and to monitor such availability, the BESS should be equipped with an availability-based tariff-compliant interface meter capable of recording energy in 15-minute time blocks.

Bidders must have a net worth of at least ₹100 million (~$1.108 million) as of the last date of the previous financial year.

Bidders should have a minimum annual turnover of ₹52.008 million (~$576,436) during the previous financial year.

Bidders should have an internal resource generation capability, as measured by profit before depreciation, interest, and taxes, of at least ₹10.402 million (~$115,292) as of the last date of the previous financial year.

Additionally, bidders should have an in-principle sanction letter from the lending institutions committing a line of credit for a minimum amount of ₹13 million (~$144,109) to meet the project’s working capital requirement.

India added 48.4 MWh of energy storage capacity in the first half (1H) of 2025, a 74% decline from 186 MWh added in the same period last year, according to India’s Energy Storage Landscape 1H 2025 Report by Mercom India Research.