Solar Panel Wattage Calculator

Calculate how much energy your solar panel system will produce based on panel wattage, quantity, sun hours, and system efficiency.

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Solar Panel Wattage Calculator

Solar Panel Calculators

Calculate how much energy your solar panel system will produce based on panel wattage, quantity, sun hours, and system efficiency.

This calculator is based on industry-standard formulas and has been verified by our team of solar engineers.

About This Calculator

This calculator estimates the energy production of your solar panel system based on panel specifications, location, and system efficiency. Results are estimates and actual production may vary based on weather conditions, shading, and other factors.

Panel Wattage (W)

Number of Panels

Sun Hours per Day

System Efficiency (%)

Quick Location Select

Energy Production Estimates

Daily Output

0.00 kWh

Monthly Output

0.0 kWh

Yearly Output

0 kWh

Important Notes

These are theoretical maximum outputs under ideal conditions
Actual production will be 10-20% lower due to real-world factors
Weather, shading, and panel degradation affect performance
System efficiency includes inverter losses and wiring resistance
Sun hours vary by season and location

System Information

Total System Capacity

4.0 kW

Estimated Annual Savings

(at $0.12/kWh)

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