States with the fastest solar payback

Compare estimated residential solar payback periods across all 50 states. Local utility rates, export compensation, incentives and roof conditions can materially change actual results. The statewide payback number in this guide is a legacy screening benchmark, not a recalculated current-law return for a new project. Do not assume it reflects the end of the federal credit or a verified local incentive package. Use the no-incentive calculator case and a site-specific utility and production model instead.