Calculate solar panel return on investment, payback period, annual savings and 25-year returns. Includes PM Surya Ghar MNRE subsidy auto-calculation.
Calculate your solar panel return on investment — enter system size, costs, and electricity rate for instant ROI, payback period and 25-year savings analysis.
Solar panel return on investment calculator | Payback period | 25-year savings | PM Surya Ghar subsidy included | Free online tool
Investing in rooftop solar panels is one of the smartest financial decisions an Indian homeowner can make today — especially with the PM Surya Ghar Muft Bijli Yojana providing central government subsidies of up to ₹78,000. But before making this investment, it is critical to understand your actual return on investment (ROI), payback period, and lifetime savings. Our free Solar Panel ROI Calculator does all this instantly.
Enter your solar system size, total installation cost, applicable subsidy amount, current electricity rate, and maintenance costs to get a complete 25-year financial analysis including annual savings, cumulative returns, ROI percentage, payback timeline, and a year-by-year savings table — all in one place.
| System Size | Install Cost | Central Subsidy | Net Cost | Annual Saving | Payback | 25yr Profit |
|---|---|---|---|---|---|---|
| 1 KW | ₹65,000 | ₹30,000 | ₹35,000 | ~₹15,000 | ~2.5 yrs | ~₹3.4 Lakh |
| 2 KW | ₹1,30,000 | ₹60,000 | ₹70,000 | ~₹30,000 | ~2.5 yrs | ~₹6.8 Lakh |
| 3 KW | ₹1,85,000 | ₹78,000 | ₹1,07,000 | ~₹45,000 | ~2.5 yrs | ~₹10 Lakh |
| 4 KW | ₹2,50,000 | ₹78,000 | ₹1,72,000 | ~₹60,000 | ~3 yrs | ~₹13 Lakh |
| 5 KW | ₹3,10,000 | ₹78,000 | ₹2,32,000 | ~₹75,000 | ~3.2 yrs | ~₹16 Lakh |
| 10 KW | ₹5,80,000 | ₹78,000 | ₹5,02,000 | ~₹1,50,000 | ~3.5 yrs | ~₹32 Lakh |