Solar Savings Calculator

Estimate simple solar production and bill savings from system size, sun hours and efficiency.

About the Solar Savings Calculator

Turn a simple production assumption into estimated electricity value.

How to use it

  1. Enter array size and peak sun hours.
  2. Adjust efficiency, local electricity price and days.
  3. Calculate daily energy and simple savings.

Formula

Daily kWh equals system size times peak sun hours times efficiency. Savings equal generated kWh times electricity price.

Example

A 5 kW system with 4.5 peak sun hours and 80% efficiency estimates 18 kWh per day.

Notes

This is not a system design, tariff forecast or investment recommendation. Shading, orientation, weather, degradation, export rules and fees are excluded.