Simple Solar PV System Sizing & Payback Estimator

solar_choice_logo_finalsolar_choice_logo_finalWelcome to Solar Choice’s solar PV system sizing & payback estimator tool. Please follow the instructions below to get an idea of how much you could potentially save with a grid-connected solar system for your home.

Remember that all results are indicative only!

(Go to our solar & storage calculator home page or check out our solar (only) payback estimator tool.)

About using this calculator

  • Use the arrows on your keyboard to navigate from cell to cell
  • Only enter values into the WHITE CELLS. Some cells will allow you to enter a number, other cells will have a pull-down menu with two or more options.
  • If you accidentally change something in a non-white cell, you’ll need to refresh the page and start over
  • Results will update automatically after you’ve entered values into the white cells


  1. I am interested in the minimum number of panels and quote for a 70 square house in Geraldton Please.
    On grid or off grid I have no Idea . I am relying on your abilities for information .
    Thank you.

    1. Hi Roy,

      Thanks for your note.

      The best way to get a quote for your house is to complete the form on the sidebar at the right (or at the bottom if you’re on mobile). You will be able to browse through some different options and each quote will include the number of panels required to make up the kW rating.

      SC Staff

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