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Andaman & Nicobar Administration Seeks Bids for 20 MWh Battery Energy Storage Project at Dollygunj

The Electricity Department of the Andaman & Nicobar Administration has issued a tender inviting bids for the development of a 20 MWh battery energy storage system (BESS) at Dollygunj in Sri Vijayapuram, Andaman. The project will be implemented under the Renewable Energy Service Company (RESCO) model.

The proposed BESS project will consist of two distinct sub-systems:

• ESS-1: 4 MW/4 MWh
• ESS-2: 4 MW/16 MWh

Together, the systems will provide a total storage capacity of 20 MWh.

The deadline for bid submission is February 16, 2026, and bids will be opened on February 17, 2026.

Bidders are required to submit an earnest money deposit (EMD) of Rs 12 million. Upon selection, the successful bidder must furnish a performance bank guarantee (PBG) of Rs 30 million.

As per the scope of work, the selected developer will be responsible for the design, supply, installation, commissioning, and grid integration of the BESS. The system will be charged using surplus solar power generated during daytime hours.

Grid connectivity will be established through a loop-in, loop-out arrangement at the 33 kV grid network of the Andaman & Nicobar Electricity Department at Dollygunj. The operation and maintenance of the transmission system will be entirely the responsibility of the developer and carried out at its own cost.

The tender mandates that the BESS must maintain a minimum annual availability of 95%. To monitor compliance, the system must be equipped with an availability-based tariff–compliant interface meter, capable of recording energy data in 15-minute time blocks.

Financial eligibility criteria require bidders to have a minimum net worth of Rs 100 million as of the end of the previous financial year. Additionally, bidders must demonstrate a minimum annual turnover of Rs 52.01 million during the preceding financial year.

Bidders are also required to show internal resource generation capability, measured by profit before depreciation, interest, and taxes (PBDIT), of at least Rs 10.4 million. Furthermore, an in-principle sanction letter from a lending institution committing a minimum line of credit of Rs 13 million is mandatory to meet the project’s working capital requirements.