☀️ Solar Calculators
Estimate solar panel size, calculate ROI with PM Surya Ghar subsidy, and find your payback period.
Which Solar Calculator Do You Need?
PM Surya Ghar Subsidy Calculator — How much subsidy will you get? The central subsidy is ₹30,000/kW for the first 2 kW, ₹18,000 for the 3rd kW, capped at ₹78,000. A 3 kW system captures the full subsidy.
Panel Size Calculator — What size system do you need? Enter your monthly electricity bill and state's peak sun hours. A ₹3,000/month bill needs a 3 kW system (6 panels, ~300 sqft roof).
Solar ROI Calculator — What's the 25-year return? A 3 kW system costs ₹72,000 after subsidy and returns ₹9.7 lakh over 25 years — a 13x return on your investment.
Payback Period Calculator — When does solar pay for itself? A 3 kW system pays back in about 2 years on your net cost after subsidy. Includes year-by-year cumulative savings table.
Net Metering Calculator — How much do you save with net metering? Compare self-consumption savings (full retail rate) vs grid export credits (typically 75% of retail). See the split for your generation and usage.