This site is run by Manish, an energy engineer with an M.Tech in Energy Engineering from NIT Tiruchirappalli and a background in electrical engineering. I build clear, honest tools to help Indian households understand rooftop solar before they talk to a single salesperson.
I'm not a solar installer and I don't sell panels. That means I have no reason to inflate the savings numbers. The calculator uses transparent engineering assumptions — all shown on the page and explained in the sizing guide — so you can judge them yourself and adjust them to your situation.
Because you can check every one of them. Nothing is a black box. If an assumption looks wrong for your city or your roof, change it and watch the result move. That's the whole point — to give you an honest baseline so you can negotiate with vendors from a position of knowledge.
It's an independent, free resource for planning. It is not affiliated with any government scheme, DISCOM, or installer, and nothing here is a binding quote or financial advice. Always confirm current subsidy rates and get professional quotes before buying.
Spotted an error or an out-of-date number? I genuinely want to fix it — get in touch.