Free Tools

Free Solar Calculators

Five quick tools to size a system, estimate savings, and plan the financing — the same numbers our team uses in a site visit.

Enter a solar and net meter reading to see estimated monthly and annual bill savings.

Work out what size system you need from your light bill — including AC and EV charging plans.

See payback period and lifetime savings after subsidy, tariff escalation, and panel degradation.

Compare indicative solar loan rates across SBI, Bank of Baroda, PNB, Canara, and HDFC with a full amortisation table.

Work out how much roof space a system needs, or the max system size your roof can fit.

Want the exact numbers for your site?

These calculators give a solid estimate — a free site visit gives you a firm quotation.