Solar Payback
Estimate simple and degraded payback from system cost, kilowatts, peak sun hours, electricity price, and performance. A planning estimate, not a quote.
Frequently asked questions
Is this a quote?
No. It is a planning estimate. Incentives, inverter replacement, export rates, and shade are ignored.
Why does output fall?
The model drops production 0.5% each year and stops the payback walk at 40 years.