Watt, Solar Calculator App

Watt, Solar Calculator App helps estimate solar system size and potential savings from rooftop PV. The Watt, Solar Calculator App guides you through entering daily energy use, average sunlight and component specifications to produce an estimated system configuration. With the Watt, Solar Calculator App you can compare scenarios and review expected generation, battery sizing and simple payback estimates.

Key features

• Estimate system size and expected monthly generation based on energy use and local irradiance.
• Calculate the number of panels, inverter rating and recommended battery capacity.
• Provide basic financial metrics such as estimated savings and payback period.
• Support for common units (kW, W, kWh) and simple scenario comparisons.

How it works

Enter your average daily consumption, available roof area or panel choices and sunlight data; the app uses those inputs to generate an estimated configuration and output summary. Results are intended as planning estimates and should be validated with site-specific measurements.

Usage notes

• Results are estimates for planning purposes and do not replace professional site assessment.
• Adjust panel efficiency, losses and system availability to refine calculations.
• Check local regulations and incentives when reviewing financial estimates.