Hyderabad-based rooftop solar installer Freyr Energy has been in business for a little over a decade. Its Managing Director and CEO, Saurabh Marda, in a recent chat with businessline, mentioned a telling data point. In the first 10 years, Freyr Energy installed about 12,000 rooftop plants; in 2025-26 alone it will do more than 15,000, and Marda expects the number to touch 30,000 in 2026-27. Last year, Freyr earned revenues of ₹165 crore; Marda says it is on track to reach ₹300 crore this year. The PM Surya Ghar: Muft Bijli Yojana scheme is a big driver. Incidentally, the company does only rooftops for residential and ‘micro’ enterprises.
Freyr’s numbers illustrate the momentum built in the rooftop solar segment, which was dormant for a long time. As at the end of October, India’s total rooftop solar capacity reached 22.5 GW, accounting for 17 per cent of the total solar installed capacity of 130 GW.
Over the last decade, India’s average temperature rose by 0.65 degree C above the 1991-2020 baseline, marking 2024 as one of the hottest years on record. This persistent warming has directly translated into record-breaking electricity demand, reaching around 250 GW during the summer of 2024, largely due to surging cooling needs across residential, commercial, and industrial sectors.
“Heatwaves drove 9 per cent of India’s power demand in summer of 2024, resulting in the emission of 327 MtCO2 (million tonnes of carbon dioxide),” says a report titled ‘Breaking the Cycle: Can India escape the heat-power demand trap?’ by Climate Trends and Climate Compatible Futures.
India’s annual maximum temperatures increased steadily across most states, from 0.1 degree C to 0.5 degree C during the last decade, with 2024 emerging as the hottest year on record, averaging 0.65 degree C above the 1991-2020 baseline and surpassing the 2016 record.
The Indo-Gangetic region witnessed persistent temperature rises, with summer peaks frequently exceeding 45 degree C and an unprecedented 52.3 degree C recorded in Mungeshpur (Delhi) in 2024, marking intensified and prolonged heatwaves.
States such as Madhya Pradesh, Jharkhand, and Chhattisgarh faced more than 500 heatwave days during the decade, driving sustained high electricity generation and extended grid stress, the report says.
Published on November 24, 2025
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