Every tool runs in your browser. No sign-up, and your numbers are never sent to SolarCost.in.
Estimate residential system size, installed cost, subsidy, generation, savings and payback from your bill, state and roof area.
Use calculatorGovernment schemeGet your exact central assistance amount by system size and state, with the standard vs special category breakdown.
Use calculatorFinancingMonthly EMI, total interest and a full year-by-year repayment schedule for any loan amount, rate and tenure.
Use calculatorYear-by-yearYear-by-year payback with panel degradation and optional tariff escalation, not just a single average figure.
Use calculatorFor businessesYear-by-year 40% WDV depreciation schedule and estimated tax saved for a commercial solar plant, with subsidy adjustment.
Use calculatorEvery calculator on this page runs entirely in your browser using JavaScript. Nothing you type is sent to a server, stored, or used to contact you. Each tool states its assumptions next to the result, and each links to a full written guide that explains the reasoning, not just the number.
These are planning tools, not quotes or portal confirmations. Vendor prices, bank rates, and scheme rules change. Use the linked official sources before you commit money.