Solar Inverter Size Calculator

Calculate the appropriate inverter size for your solar panel setup.

kW
Enter the total power capacity of your solar panels in kilowatts.
%
Enter the efficiency rating of your inverter as a percentage.

How to use this tool

  1. Enter the total solar panel wattage in kilowatts (kW).
  2. Enter the inverter efficiency percentage.
  3. Select the type of system configuration, either 'Off-Grid' or 'Grid-Tied'.
  4. Press the calculate button to see the recommended inverter size.

Limitations

Assumes static inverter efficiency and does not account for external factors such as temperature or future energy needs. Consult a solar professional for detailed analysis.

Frequently asked questions

Why is inverter efficiency important?

Inverter efficiency affects how much of the solar energy is converted into usable electricity. A higher efficiency means less energy is lost.

What is the difference between off-grid and grid-tied systems?

Off-grid systems operate independently of the utility grid, while grid-tied systems are connected to the utility grid and can export excess power back.