Solar panel output in United States
Solar output varies substantially across the United States. This page uses Washington, DC as a clearly identified reference point and links to modeled estimates for ten major cities; it is not a nationwide production average.
Reference location: Washington, DC · Reference system: 6 kWp, fixed south-facing panels, 35° tilt
Electricity-price assumption
Reference value: $0.18 per kWh (August 2026). This editable planning assumption is not a quote for your tariff.
EIA — U.S. residential averageLocal electricity rules and incentives
Net-metering and export compensation are set by state rules and local utilities; they are not assumed in this estimate. Check your utility tariff and current state policy before relying on payback figures.
Rules and tariffs can change. Confirm current terms with your utility or the relevant authority before making an investment decision.
U.S. Department of Energy — Homeowner’s Guide to Going SolarEstimated monthly solar production in Washington, DC
Solar estimates for major cities
Data sources and assumptions
Annual output uses the European Commission Joint Research Centre PVGIS model at the listed location. The reference city is not a national average; roof shading, orientation, equipment and weather change actual production.
PVGIS coverage has been checked for United States and the listed locations.
PVGIS API — European Commission Joint Research Centre