Production Estimate

Production Estimates Intro

Production Estimates

Solar Design Calculator: Your ultimate tool for seamless solar system design. Easily calculate panel spacing, temperature corrections, wire sizing, voltage drop, production estimates, savings, shading, and more for a flawless pre-electrical room design.

Location
Enter your complete address and select from dropdown
System Configuration
Residential: 4-10 kW | Commercial: 10-1,000 kW
Roof pitch or panel angle (0-90)
180 = South, 90 = East, 270 = West
Advanced Settings (Optional)
Default: 14% (includes soiling, wiring, etc.)
Typical: 1.1 - 1.3
For ground-mounted systems
Estimated Annual Production
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Monthly Average
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Daily Average
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Capacity Factor
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Solar Irradiance
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System Details
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About Solar Production Estimates
This calculator uses NREL's PVWatts API to estimate solar energy production based on your location, system size, and configuration. Results show expected annual energy generation in kilowatt-hours (kWh). The capacity factor represents the ratio of actual output to potential maximum output. Estimates are based on typical meteorological year (TMY) data and actual production may vary due to weather conditions, shading, maintenance, and equipment performance. System losses account for factors like soiling, wiring resistance, inverter efficiency, and temperature effects.