Payback Period Calculator

Find out how many years it will take for your solar investment to pay for itself.

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Written & reviewed by

Jeremy Wolfe — Senior Solar Energy Analyst

Jeremy Wolfe is a solar energy analyst specializing in residential photovoltaic economics, federal and state incentive policy, and return-on-investment modeling for homeowners. He leads EnergyTools' solar research program and methodology.

10+ years analyzing residential solar economics and payback modeling
Lead researcher for EnergyTools' 50-state solar cost-per-watt database
Author of 100+ solar ROI, payback, and incentive analyses

Methodology & data sources:NREL PVWatts, EPA FuelEconomy.gov, state utility commissions— updated 2026.