Reliance Infrastructure, JBM Renewables, PNC Infratech, SAEL Industries, and Navayuga Engineering Company have won NHPC’s 1.2 GW auction (Tranche-XI) to set up interstate transmission system (ISTS)-connected solar power projects with 600 MW/2,400 MWh energy storage systems (ESS).

Reliance Infrastructure won 390 MW, JBM Renewables won 150 MW, PNC Infratech won 300 MW, and SAEL Industries won 300 MW at a tariff of ₹3.13 (~$0.0365)/kWh.

Navayuga Engineering Company won 60 MW of the 200 MW quoted capacity under the bucket filling method at a tariff of ₹3.13 (~$0.0365)/kWh.

The tender was floated in March 2025.

It has a provision to award the winners an additional 1.2 GW under the greenshoe option.

The projects will be developed on a build, own, and operate basis.

Winners must utilize an ESS with a capacity of at least 0.5 MW/2 MWh for a contracted capacity of 1 MW.

They must charge the ESS with solar power. The ESS must be charged at a rate of up to 5% annually using renewable power from the green market or bilateral agreements.

The projects must use commercially established and operational technologies to minimize risk and achieve timely project commissioning.

Only cells and modules from the Approved List of Models and Manufacturers must be used for the projects.

The tender specified that winners can set up projects at multiple locations, provided each project has a minimum capacity of 50 MW, with a minimum ESS component of 25 MW/100 MWh.

The cumulative capacity set up by a single bidder must not exceed 600 MW (with a minimum ESS component of 300 MW/1,200 MWh) without a greenshoe option.

In May 2025, SAEL Industries, Jindal India Renewable Energy, Sembcorp Green, JBM Renewables, Fastnote Biofuels (Hindustan Power), and Reliance NU Energies won SJVN’s auction to develop 1,200 MW ISTS-connected solar projects with 600 MW/2,400 MWh ESS.

In January 2025, Onix Renewable, Jindal India Renewable Energy, NTPC Renewable Energy, Kolar Solar Power (Rays Power Infra), ReNew Solar Power, and Adani Renewable Energy Holding Nine (Adani Green) won NHPC’s auction to set up 1,200 MW ISTS-connected solar projects with 600 MW/1,200 MWh ESS.

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