Solar decision guide
What is the solar payback period?
The modeled payback range is 4.8–23.1 years. It compares published net cost and annual savings ranges; it is an estimate, not a quote or financial guarantee.
- Modeled payback
- 4.8–23.1 years
- Gross system cost
- $17,250–$26,220
- Net system cost
- $12,075–$18,354
Range across cost and savings cases.
Before the published federal credit.
After the published credit rate.
Payback is cost divided by annual value
The low end pairs the lower net cost with higher annual savings. The high end pairs the higher net cost with lower annual savings. A property-specific roof result helps test whether the assumed production is plausible.
Frequently asked questions
What payback range does this model show?
The modeled range is 4.8–23.1 years.
What gross system cost is used?
The model uses $17,250–$26,220 before the published federal credit.
What can change payback?
Installed price, incentives, electricity rates, self-consumption, export compensation, production, maintenance, and financing terms can all change the result.
Check your specific roof
General guidance is a starting point. Use your address to check orientation, shading, and usable roof area free.