Reliance Power’s ₹10,000 Crore Solar-Battery Project: Asia’s Largest Integrated Energy System

Landmark Agreement in Renewable Energy Sector

In a significant development for India’s renewable energy sector, Reliance Power Limited announced that its subsidiary, Reliance NU Suntech Private Limited, has entered into a historic 25-year Power Purchase Agreement (PPA) with the Solar Energy Corporation of India (SECI). This groundbreaking project is set to become Asia’s largest integrated solar and battery energy storage system, marking a pivotal moment in the region’s transition to sustainable energy solutions.

Project Scope and Technical Specifications

The ambitious project encompasses the development of a 930 MW solar power facility integrated with a sophisticated 465 MW/1,860 MWh battery energy storage system. To achieve the contracted capacity, Reliance NU Suntech will deploy more than 1,700 MWp of solar generation infrastructure. The company has committed to delivering power at a competitive fixed tariff of ₹3.53 per kilowatt-hour, ensuring long-term price stability for consumers while promoting sustainable energy adoption.

Market Impact and Financial Performance

The announcement has been well-received by the market, with Reliance Power Limited’s shares trading at ₹40.66 on the NSE, marking a positive increase of ₹0.67 or 1.68 percent. This upward movement reflects investor confidence in the company’s strategic expansion into the renewable energy sector and its potential for long-term growth.

Competitive Edge and Project Timeline

Reliance NU Suntech demonstrated its competitive strength by securing this allocation through SECI’s Tranche XVII auction in December 2024, successfully outbidding four other energy companies. The efficiency of the process is noteworthy, with the entire journey from auction to PPA signing completed in under five months. The company’s commitment is further evidenced by its submission of a substantial ₹378 crore Performance Bank Guarantee.

Reliance Power’s Growing Portfolio

This latest venture adds to Reliance Power Limited’s impressive portfolio of 5,305 megawatts, which includes the flagship 3,960 megawatt Sasan Power Limited plant. The Sasan facility has maintained its position as India’s best operating power plant for seven consecutive years, showcasing the company’s operational excellence and technical expertise.

Strategic Significance and Future Impact

The project represents more than just a business venture; it’s a strategic milestone in India’s journey toward renewable energy adoption. By combining solar power generation with large-scale battery storage, the project addresses one of the key challenges in renewable energy – intermittency. This integrated approach ensures reliable power supply while contributing to India’s renewable energy targets and environmental commitments.

Published on May 2, 2025