Sun Hours: Solar Forecast

Know what your solar panels could produce today—without connecting an inverter or entering technical specs. Sun Hours turns your location and best-ever solar day into a clear, personalized solar production forecast in seconds. SET UP IN TWO STEPS 1. Enter your ZIP code or choose a location on the map. 2. Enter the most kWh your panels have generated on a great day. No inverter login, azimuth, tilt, account, or engineering knowledge required. PLAN AROUND YOUR SOLAR POWER • Estimated solar generation in kWh for today • Hour-by-hour production curve • 7-day solar panel forecast • Cloud cover and daily efficiency breakdown • Best two-hour solar window for EV charging, laundry, the dishwasher, and other high-energy tasks • Optional morning alerts • 30-day outlook based on historical weather for your location SIMPLE BY DESIGN Sol, the friendly Sun Hours mascot, gives you a quick summary when you open the app. Use the detailed forecast when you want it; skip the complicated dashboards when you don't. WORKS WORLDWIDE Enter a supported location or drop a pin to create a forecast wherever your panels are installed. PRIVACY-FRIENDLY No account is required. Sun Hours is free with infrequent ads; a Pro upgrade removes ads and unlocks more tools. Forecasts are estimates. Actual production can vary with shading, panel condition, inverter performance, system losses, and local weather.