The Uttar Pradesh Power Corporation (UPPCL) has announced the winners of the 375 MW/1,500 MWh standalone battery energy storage auction.

KCC Buildcon won 187.5 MW/750 MWh, and Agastya Green Energy won 62.5 MW/250 MWh at a tariff of ₹6.45 (~$0.0680)/kWh. MKC Green Energy won 125 MW/500 MWh out of a quoted 187.5 MW/750 MWh at a tariff of ₹6.46 (~$0.0681)/kWh under the bucket-filling method.

The tender was floated in September last year.

Selected bidders must apply for connectivity within 30 days of signing the battery energy discharge purchase agreement (BEDPA). At least 30 days before the proposed commissioning date, developers must submit the signed connection agreement to the transmission utility.

The BEDPA should be valid for 15 years from the scheduled commissioning date or the date of full commissioning, whichever is later.

The scheduled commissioning date is 18 months from signing the BEDPA.

The battery storage system must be designed for up to four hours of discharge. UPPCL may schedule this in one or two daily sessions, excluding the 11:00 to 17:00 charging window. The charging power for the BESS project must be sourced from renewable energy.

Developers must ensure at least 95% monthly system availability. For any shortfall, they must pay UPPCL liquidated damages equal to 1.5 times the tariff for the energy not supplied.

UPPCL will offtake 100% of energy from the declared BESS capacity, except in cases of grid unavailability or force majeure. If it fails to offtake power for other reasons, it must pay the full tariff on the declared capacity.

The developer may sell the unrequisitioned power on the exchange or to third parties. In such sales, net revenue (after expenses) will first be applied against UPPCL’s dues, with any surplus shared equally between UPPCL and the developer. If not sold, UPPCL is not liable for payment on that portion.

In January this year, the Uttar Pradesh Electricity Regulatory Commission adopted a tariff determined through competitive bidding for a 375 MW/1,500 MWh standalone battery energy storage system to be set up in Uttar Pradesh under the Viability Gap Funding program.

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