SolarScope: Solar Estimator

Thinking about solar, or sizing up an expansion? SolarScope estimates what a solar array will actually produce — before you spend a dime. PLAN ANY SYSTEM Enter your array size (kW, or panel count times watts), tilt, and direction, and set your location automatically or by hand. SolarScope applies a peak-sun-hours model with regional sun data and orientation factors to estimate real-world output. SEE THE WHOLE YEAR Get daily, monthly, and annual kWh estimates with a clean monthly production chart, so you can see exactly how summer and winter compare at your location. KNOW WHAT IT'S WORTH Enter your electric rate and SolarScope shows estimated dollar savings, plus the CO2 your system would offset. COMPARE SYSTEMS Save multiple systems — different roof faces, panel counts, or houses — and flip between them. SolarScope is a planning estimator (results are estimates, not a production guarantee) and works fully offline: no account, no ads, no data collection. Pay once.