Recommended system
— kW
Enter your electricity bill and get an honest estimate of system size, cost after subsidy, yearly savings, and payback period. Built by an energy engineer — every assumption is shown, nothing is hidden.
Takes about 30 seconds. You only really need your monthly bill.
Using: 4.4 units/kW/day (Maharashtra default)
An estimate to help you decide — not a price quote. See how this is calculated, and verify current subsidy & prices before you buy.
*Rough illustrative comparisons to make the number feel real — not precise measurements.
Solar isn't automatically a good deal for everyone. Whether it pays off comes down to a few simple factors — here's the plain-English version.
The more electricity you use at a high tariff, the more solar offsets every month. A ₹500 bill rarely justifies the cost; a ₹3,000+ bill usually does. Solar replaces units you'd buy from the grid.
Under PM Surya Ghar, residential systems get a central subsidy up to ₹78,000 — which directly shortens payback. See how it works →
Panels usually carry ~25-year performance warranties. Once the system pays for itself — often within several years — most of what it generates after that is money you keep.
Short, honest explainers from an engineer who doesn't sell panels.
Credible ALMM brands, Mono PERC vs TOPCon, on-grid vs hybrid — and the honest truth about what actually matters.
Read the guide →Lithium vs lead-acid, credible brands, the inverter-compatibility trap, and why battery prices are ranges to verify — not one number.
Read the guide →A real wind-speed check for your location — and the honest reasons it's usually a no for rooftops in India.
Check your location →When solar genuinely pays off, when it doesn't, and the questions to ask before spending a rupee.
Read the guide →Exactly how much you get for 1, 2 and 3 kW, who qualifies, and the state top-ups most people miss.
Read the guide →A realistic price range by system size, what drives it up or down, and your true cost after subsidy.
Read the guide →The back-of-envelope method an engineer uses to match panels to your real usage — no jargon.
Read the guide →The honest math for smaller households — when it still pays off, and when to wait.
Read the guide →How exported units become bill credits, what happens to unused credits, and state differences.
Read the guide →How much upkeep solar really needs, how fast panels degrade, and what protects your investment.
Read the guide →Typical usage patterns by home size, translated into a realistic kW recommendation.
Read the guide →