Reliance Power Limited’s wholly owned subsidiary Reliance NU Energies Private Limited has marked a significant milestone by winning India’s largest allocation in the ISTS-connected Solar + Battery Energy Storage System (BESS) tender floated by SJVN Limited, a prominent Navratna Public Sector Undertaking. This victory not only cements Reliance Power’s leadership in the clean energy space but also aligns with India’s ambitious renewable energy transition roadmap.

Biggest Solar + BESS Allocation in India

Reliance NU Energies successfully secured 350 MW of solar power capacity integrated with 175 MW/700 MWh of BESS through a tariff-based competitive bidding process conducted by SJVN. Once commissioned, the project will contribute 600 MWp of installed solar PV and 700 MWh of storage capacity to Reliance Power’s growing green portfolio.

This victory makes Reliance Power the largest integrated player in India’s Solar + BESS segment, with a total pipeline of 2.5 GWp solar and 2.5 GWh of energy storage capacity.

Competitive Tariff Strengthens Market Position

The winning bid tariff was discovered at ₹3.33 per kWh, which is fixed for a 25-year term. This rate not only ensures long-term cost stability but also highlights the competitiveness of Reliance Power in India’s clean energy market. The Letter of Award (LoA) is currently awaited from SJVN.

The project was awarded under the build-own-operate (BOO) model, adhering to the guidelines by the Ministry of Power. One critical requirement was a minimum four-hour daily discharge window, enabling assured peak power supply to state Discoms.

Participation and Tender Dynamics

SJVN’s 1,200 MW solar + 600 MW / 2,400 MWh BESS ISTS-connected tender attracted 19 participating entities, of which 18 qualified for the e-reverse auction. The tender was oversubscribed by over 4 times, showcasing the industry’s heightened interest in dispatchable and firm renewable power solutions.

Reliance NU Energies emerged as the top allocator amidst stiff competition, indicating technical and commercial superiority in deploying large-scale hybrid energy projects.

Strategic Push Towards Renewable Energy

This project represents a strategic leap in Reliance Power’s ongoing transition from conventional to sustainable energy sources. It underscores the company’s determination to lead the shift towards firm and flexible green power solutions in India’s evolving electricity ecosystem.

The development aligns with India’s target of reaching 500 GW of non-fossil capacity by 2030 and contributes directly to grid resilience through storage-enabled renewables.

Asia’s Largest Solar + BESS Project by Reliance NU Suntech

Adding to its renewable credentials, Reliance Power’s other subsidiary, Reliance NU Suntech Private Limited, has recently signed a 25-year Power Purchase Agreement (PPA) with Solar Energy Corporation of India (SECI) for the development of Asia’s largest integrated Solar + BESS project.

This massive project includes:

• 930 MW of solar capacity

• 465 MW / 1,860 MWh of BESS

• INR 10,000 crore investment outlay

• Fixed tariff of ₹3.53/kWh for 25 years

This project reinforces Reliance Power’s long-term vision to build scalable, high-impact green energy assets while ensuring value creation for all stakeholders, including government, regulators, utilities, and end-consumers.

Reliance Power’s Dominance in Renewable Energy

With these landmark projects under development, Reliance Power is positioning itself as a pivotal player in India’s clean energy revolution. By embracing the Solar + Storage model, the company is directly addressing the intermittency challenges of renewables and supporting the integration of green energy into the national grid.

The move also complements the company’s overarching commitment to net-zero emissions, energy security, and sustainable infrastructure development in line with India’s COP26 climate commitments.

Conclusion: Shaping India’s Clean Energy Future

The success of Reliance NU Energies and Reliance NU Suntech signals a new era in India’s energy story — one driven by technology, affordability, and sustainability. These developments not only boost Reliance Power’s profile as a renewables leader but also support the country’s broader efforts to decarbonise its energy mix.

As the sector evolves, such mega-scale projects backed by reliable private players and supported by government agencies like SJVN and SECI will be instrumental in turning India into a global clean energy powerhouse.

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