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Use calculator Get free quotes
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How it works

Find the right solar system for your home in three simple steps.

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Tell us about your energy needs

Our DIY solar assessment tool will calculate the right solar system for your home, and show your potential savings.

Use calculator
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Get 3 free quotes from installers we trust

We will match your needs with the most suitable installers from our handpicked list. They will send your personalised quotes.

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Compare quotes and decide what’s right for you

If you like the look of one of your quotes, your chosen installer will work with you directly to get your new solar system up and running.

Learn more about us

Our calculators

Whether you're starting your solar journey or looking to upgrade an existing system, our solar guides have everything you need to make an informed decision.

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Solar savings calculator
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Solar system size calculator
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Solar battery calculator
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Off grid solar calculator
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Solar loan calculator
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STC calculator
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Feed in tariff calculator
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Electricity use calculator

Explore our
comprehensive guides

Whether you're starting your solar journey or looking to upgrade an existing system, our solar guides have everything you need to make an informed decision.

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Guide: 01

The 101 guide to solar energy

Are you a solar novice? This guide will help you understand how solar works, and whether it’s right for you.

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Guide: 02

The complete guide to solar rebates

Are you interested in solar rebates? Our complete guide will explain what is available to you at both federal and state level.

Read guide
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Guide: 03

A complete guide to solar batteries

Are solar batteries worth it? This guide will help you weigh the pros and cons of battery storage.

Read guide
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Frequently asked questions
How do solar panels work?
Solar panels harness the sun's rays to produce electricity that can be used in your home. When the sun is shining, your appliances are powered by solar, at night, you can use battery stored power or get your electricity from the grid.
How much will solar panels save me?
Your savings from solar panels vary depending on a number of factors, including: the system size you select, your electricity usage and a host of other factors. Our solar calculator can give you accurate savings results for your home.
Are solar panels worth it?
For most households, solar panels are worth it. Financial paybacks periods are typically between 4 - 7 years. You can read our analysis of the viability of solar panels here.
How many solar panels do you need?
For the average Australian home, a 6.6kW system is typically adequate. For solar charging an EV, a bigger system is recommended. This solar panel size calculator can tell you how many panels you need.
How much do solar panels cost?
Once the rebate is applied, solar panels cost around $1,000 per kW. For a 6.6kW system, expect to pay somewhere between $5,000 - $7,500. You can look up average solar panel prices here.

We’ve helped over 20,512 Australians transition to solar

Get your free quotes now
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  • Fast and accurateOur calculators make it easy for you to get detailed, functional insights.
  • Reputable installersWe vet every single one of our CEC accredited partners.
  • Obligation freeThere’s no pressure to accept any of your quotes.
  • Free and secure serviceWe don’t share your data with anyone you don’t agree to.
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Did you know?

The earth receives enough sunlight in one hour to power the world's energy needs for one year.

The greatest threat to our planet is the belief that someone else will save it Robert Swan

We’re here to help create a brighter future

At Solar Calculator, we’re committed to helping all Australians create positive change. As well as providing free tools and resources, we donate more than 1% of all revenue to environmental causes and organisations that support climate action. We’re also a member of One Percent for the Planet and a supporter of the UN Global Compact.

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