Cost and payback calculator
Start with the area you have, your consumption or a target capacity, then move the sliders. The result is an indicative range, not a quote. The detailed proposal is free.
Indicative result
System size—
Generation per year—
Turnkey budget—
Net savings, year 1—
Payback—
IRR over 25 years—
Net gain over 25 years—
Cost of solar power—
CO₂ avoided per year—
Cumulative cash position
Unlevered, pre-tax, in US dollars. Tax incentives, depreciation and grid capacity charges are not included and usually improve the result.
Get a fixed-price proposalHow this is calculated
| Specific yield | |
|---|---|
| Turnkey cost | |
| O&M | |
| Grid tariff | |
| Export price | |
| Used on site | |
| Horizon | 25 years, unlevered, pre-tax, no residual value. Cost of solar power at a 6% discount rate. |
Yields, tariffs and CO₂ factors are rounded country averages. Costs are indicative mid-2026 benchmarks for 0.5–2 MWp: rooftop $0.78/Wp, ground $0.85/Wp, carport $1.25/Wp, shown ±12%. Incentives, taxes and financing are not included. The minimum project size is 100 kWp; above 5 MWp we scope the project individually.
Ready for real numbers?
A proposal uses your bills, a site survey and current equipment quotes.