Juniper Green Energy, Navayuga Engineering Company, ACME Solar Holdings, and Tata Power Renewable Energy have won Tata Power Delhi Distribution’s auction to supply 250 MW of firm and dispatchable renewable energy (FDRE) from projects integrated with energy storage systems (ESS) on a build-own-operate basis.

Juniper Green Energy secured 70 MW with a quoted tariff of ₹4.76/kWh (~$0.0547). Navayuga Engineering won 50 MW at ₹4.76/kWh (~$0.0547), while ACME Solar also secured 50 MW at the same tariff. Tata Power Renewable Energy won the largest share of 80 MW at a tariff of ₹4.77/kWh (~$0.0548).

The selected bidders will sign a power purchase agreement for 25 years.

The tender was floated in April this year.

The renewable energy sources eligible under this tender include solar, wind, or other renewable options, but all projects must incorporate an ESS charged exclusively by renewable energy. The ESS requirement is designed to ensure dispatchable supply, addressing intermittency concerns associated with renewable generation.

For projects located outside Maharashtra, the tender specified that bidders must include interstate transmission system (ISTS) charges of ₹0.11/kWh (~$0.00128) and transmission losses of ₹0.22/kWh (~$0.00257) over and above their quoted tariff.

According to the terms of the tender, the ISTS charges and losses quoted by such interstate projects were to be considered solely for the purpose of bid evaluation, aiming to create parity between interstate and intrastate projects.

Transmission charges and losses for projects connected to the Maharashtra State Transmission Utility system were considered nil, as Tata Power-D holds long-term transmission system user status in the state.

In February this year, Tata Power Renewable Energy emerged as one of the winners of SJVN’s auction to develop 1,200 MW ISTS-connected projects to supply firm and dispatchable renewable energy, by securing 88 MW at a quoted tariff of ₹4.91 (~$0.0562)/kWh.

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