RSDCL Invites EoI for BESS Project at Bhadla Solar Park

Rajasthan Solarpark Development Company Ltd. (RSDCL) has invited Expressions of Interest (EoIs) from developers for setting up a Battery Energy Storage System (BESS) at Bhadla Solar Park in Rajasthan to utilise 680 MW of available grid connectivity during non-solar hours.

The proposed project is designed to make productive use of underutilized transmission infrastructure during non-solar hours by storing surplus renewable energy generated during the day and supplying it during night-time and other periods of peak demand. The initiative is expected to help reduce renewable energy curtailment, improve grid efficiency, and maximise the utilisation of clean energy resources, supporting Rajasthan’s renewable energy objectives and India’s broader net-zero ambitions.

RSDCL, a wholly owned subsidiary of Rajasthan Renewable Energy Corporation Ltd.(RRECL), said that the project will utilise the existing State Transmission Utility (STU) network connectivity available at Bhadla Solar Park. The infrastructure includes 132 kV pooling stations with upstream evacuation support up to the 220 kV network.

Under the proposed framework, the project will be developed through a developer-led model, with the selected developer responsible for project design, financing, engineering, procurement, construction, commissioning, ownership, operation and maintenance of the BESS facility. The concession period has been proposed at 15 years, during which ownership of the assets will remain with the developer.

RSDCL will provide land for the project, facilitate connectivity at the 132 kV level, support development of evacuation infrastructure, and coordinate with transmission and regulatory authorities. The company clarified that it will not bear any financial or operational responsibility for the project.

The EoI aims to assess market interest and gather feedback from developers on optimal BESS sizing, storage duration, project structure, charging and dispatch strategies, off-take arrangements, and benefit-sharing mechanisms. Developers have been invited to suggest suitable project development models, including BOO (Build, Own and Operate) and BOOT (Build, Own, Operate and Transfer) structures.

According to the document, developers will have complete commercial flexibility to monetise the storage asset through value-stacking opportunities, including supplying power to discoms, open-access consumers, captive users, and power markets, subject to applicable regulations. Revenue-sharing and energy-sharing models with RSDCL will also be explored.

Interested participants must be companies registered in India with valid CIN, GSTIN and PAN registrations. Applicants should possess experience in utility-scale solar projects and grid-connected energy storage systems, while consortiums and joint ventures may participate provided the lead member holds at least 51 percent equity in the project SPV. Participants must also have a positive net worth in FY 2025-26, certified by a statutory auditor.

The EoI document fee has been set at INR1,000 plus GST, while the processing fee is INR 5,000 plus GST. Responses will be accepted from June 18, 2026, and the submission window will close on July 14, 2026. A stakeholder consultation meeting is scheduled for June 24, 2026, at the RRECL headquarters in Jaipur.

The feedback received through the EoI process will be used by RSDCL to finalise the project's technical specifications, commercial framework, connectivity arrangements, infrastructure-sharing mechanism and bidding structure before launching the next stage of procurement.