Reliance Power’s arm wins allocation in ISTS-connected solar plus battery energy storage system tender

12 May 2025 Evaluate

Reliance Power’s subsidiary--Reliance NU Energies has won the largest allocation in SJVN’s tariff-based competitive bidding process, securing an allocation of 350 MW of solar generation capacity coupled with 175 MW/700 MWh of battery energy storage system (BESS).

Once commissioned, the platform will add 600 MWp of installed solar PV capacity, and 700 MWh of energy storage to Reliance Power’s portfolio, consolidating its leadership in new energy solutions. The company’s total clean energy pipeline now stands at 2.5 GWp solar and >2.5 GWhr BESS, making it India’s largest player in the integrated Solar + BESS segment. The winning tariff was discovered at Rs 3.33/kWh, fixed for a 25-years, positioning the project among the most competitively priced offerings in India’s energy transition landscape. The Letter of Award (LoA) from SJVN is currently awaited.

This allocation represents a material step-up in Reliance Power’s strategic pivot toward renewable power. The project is part of a broader 1,200 MW solar + 600 MW / 2,400 MWh BESS ISTS connected tender floated by SJVN, one of the leading Navratna Public Sector Enterprise which saw participation from 19 entities, with 18 qualifying for the e-reverse auction. The tender was oversubscribed by more than 4 times, reflecting heightened industry interest in dispatchable renewable energy solutions. 

Reliance Power has been established to develop, construct and operate power projects both in India as well as internationally.


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