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What the calculator answers

Every live tool here runs on the same 51 state + DC solar file: average irradiance 4.82 kWh/m²/day, modeled payback 14.2 yr across the cohort, and 137 tracked incentive programs.

1
Live tool: 51
States + DC covered: 7/51
Modeled payback under 10 yr: 5.2 yr
Fastest modeled payback (HI)

Payback is modeled from public NREL/EIA/DSIRE inputs, not a guarantee for any address.

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