By Enersider Desk | New Delhi | 22 June 2026
Indian Oil Corporation Limited (IOCL), India’s largest public-sector oil and refining company, has commissioned a 150-kW rooftop solar system at its Guwahati facility and a 125-kW rooftop solar system at its Varanasi facility, according to a company statement.
The 150-kW system at Guwahati generates approximately 2,05,200 kWh annually, resulting in estimated annual cost savings of Rs 13,80,000 with an estimated ROI within 4 to 5 years. The 125-kW system at Varanasi generates approximately 1,71,000 kWh per year, resulting in estimated annual cost savings of around Rs 13,00,000 with a payback period of approximately 5.2 years.
The rooftop solar systems support fuel dispensers, lighting, CCTV, POS systems, air compressor, signage, and EV charging stations, helping reduce dependence on grid electricity and diesel generators.
Recent disruptions in energy chains have impacted nearly 40% of the country’s crude oil imports and 50% of LPG imports, resulting in increased fuel prices and higher electricity costs.
Radhika Choudhary, Co-Founder Freyr Energy, said: “Rooftop solar is increasingly emerging as a strategic investment for commercial and industrial infrastructure enabling public sector companies to lower electricity costs, improve operational efficiency, and strengthen energy reliability. Varanasi holds strategic importance as a major religious destination attracting nearly 70 million pilgrims annually, driving strong seasonal fuel demand. Guwahati serves as the main gateway to Northeast India and is a key logistics hub for the region.”
Freyr Energy has played a role in solarising IOCL’s facilities across the country. With nearly 41,000 retail fuel outlets across the country, large-scale solar adoption across fuel stations has the potential to expand renewable energy capacity, reduce dependence on the grid and contribute to India’s target of achieving 500 GW solar energy by 2030.
