You have three solar quotations in front of you. One offers 10 kW for a price that seems almost too good. Another proposes 8 kW from a brand you recognise, with a longer warranty and a proper site survey included. The third is somewhere in the middle – more panels, vague warranty terms, and a salesperson emphasising system size over actual generation.

A warehouse owner in Pune installed a 150 kW rooftop solar system two years ago. Savings looked great on paper. Installation happened fast. Nobody spent much time on the roof beforehand. Within eighteen months, panels had hot spots, the roof was leaking around brackets, and output was 22% below projections.

Solar energy adoption in India is growing at a remarkable pace. Falling installation costs, rising electricity tariffs, and stronger environmental awareness have pushed homes, businesses, and industries toward rooftop and ground-mounted solar systems. Yet despite this progress, one fundamental challenge remains: solar power is intermittent. It generates electricity when the sun shines and stops when it doesn’t.