Solar Power Calculator

Why Choose Us?

Goodhew Electrical and Solar has created this solar power calculator page to help you choose the system best suited to you.

Use the tables below to estimate what size solar power system you’ll need.

There’s also a form so you can contact us directly for a quote.

Calculate what solar power system you’ll need

Solar power systems are measured in terms of their kilowatt (kW) capacity and kilowatt-hours (kWh) of output. The type of solar power system you’ll need will depend on:

  • the size of your house
  • how many people live in your house
  • how many electrical devices you use
  • the current cost of your quarterly energy bill.

Use the table below to calculate which solar power system you’ll need.

TABLE: Solar power system capacity required

Contact Us

If you’re still unsure which system would be perfect for you, or if you have any questions about our solar power systems, please contact us.

Phone our office on (07) 3286 1422 or email us at

Alternatively, if you’re interested in seeing a demonstration of a solar power system, visit our Cleveland office.