The Solar Energy Corp. of India’s (SECI) tender for 1.2 GW of interstate transmission system (ISTS)-connected solar projects, integrated with 600 MW/3,600 MWh of energy storage systems (ESS), has discovered a tariff of INR 3.12/kWh.
NLC India Renewables secured the largest solar capacity of 600 MW, while Engie Energy India won 200 MW—both at a tariff of INR 3.12/kWh. Of the remaining capacity, Rays Power Infra was awarded 300 MW and Oriana Power 100 MW at a tariff of INR 3.13/kWh.
As per the tender requirements, the winning developers must install storage capacity of at least 0.5 MW/3 MWh for every 1 MW of contracted solar capacity under the power purchase agreement (PPA). The storage component may be owned by the solar developer or tied up separately with a third-party provider.
The projects will be developed on a build-own-operate (BOO) basis. SECI will sign 25-year PPAs with the developers for the procurement of solar power from these projects. The power will subsequently be sold to various buying entities across India, with SECI acting as an intermediary nodal agency facilitating back-to-back transactions between developers and buyers.
“The projects shall be located at the locations chosen by the developer at its own discretion of and cost, risk and responsibility. A single project can be set up at multiple locations with different delivery points,” said SECI in the tender document. “The ESS component needs to be co-located with the project, however, in case of a project located at multiple locations, the ESS needs to be co-located with at least one of the components.”
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