SolarCostByZip provides detailed solar panel cost data for over 5,900 cities across all 50 states.
Our solar cost estimates are based on data from the U.S. Energy Information Administration (EIA), state energy offices, EnergySage marketplace data, and industry reports from SEIA and NREL.
We analyze state-level solar installation costs ($/watt), local electricity rates, average sun hours, and available incentives (federal ITC, state rebates, net metering) to provide accurate cost estimates adjusted for each city's market conditions.
We help American homeowners understand the true cost and savings potential of going solar, with transparent data covering system costs, payback periods, and 25-year savings projections.
Data last updated: March 2026.