Is solar worth it in your country? Enter your details and get your exact 25-year return on investment, annual ROI percentage, and net profit — in your local currency.
25-year net profit, annual ROI %, and investment grade
Want your complete solar estimate — cost, savings, payback, and ROI all in one place?
Use the Global CalculatorSolar ROI measures how much profit you earn relative to what you invested. Unlike payback period (which just tells you when you break even), ROI tells you the full financial picture — how much money solar actually makes you over its lifetime:
System price minus all incentives, rebates, and tax credits for your country.
Electricity savings projected over the full system life with annual rate increases.
Total savings minus net cost — the actual cash value solar puts in your pocket.
Net profit divided by system life gives your annualized return — compared to savings accounts or stocks.
Important: All results are estimates for educational purposes. Actual ROI depends on your specific roof, local installer quotes, and available incentives. Always consult a licensed solar installer.
How does solar compare to putting your money elsewhere? Here's a typical comparison for a $15,000 net solar investment:
| Investment Type | Avg Annual Return | Risk Level | Tax Benefits |
|---|---|---|---|
| ☀️ Solar Panels | 8–15% / year | Very Low | Yes — tax credit + home value |
| 📈 S&P 500 Index | ~10% / year | Medium-High | Capital gains tax applies |
| 🏠 Real Estate | 4–8% / year | Medium | Some deductions available |
| 🏦 Savings Account | 3–5% / year | Very Low | Interest taxed as income |
| 📊 Bonds | 3–5% / year | Low | Interest taxed as income |
Solar delivers 8–15% annualized ROI in most countries — comparable to or better than the stock market, with near-zero risk (unlike stocks, your panels can't lose value overnight) and the added benefit of a government-backed tax credit.
Explore our complete library of free solar guides: