All solar panel installations will differ in cost depending on the size of the system, the quality of the products, roof accessibility, use of certified in-house installation staff and the level of after sales service on offer.

However, as a general guide based in Victoria in September 2021, a 3kW solar system could cost around $3,500 with a Victorian government solar rebate, a 6kW system might cost around $5,500 with a rebate and a 10kW system might cost around $10,000 with a rebate.

Some of the key factors to consider when working out how much solar panels really cost include the quality of your solar panels and inverter(s), the size of your solar system, whether you’re eligible for a government rebate and even the type of roof you have.

The type and quality of products 

There are lots of solar panel and inverter brands available in Australia and some are better quality than others. As always, better quality products tend to cost more. 

Similarly, different types of solar panels (monocrystalline or polycrystalline panels) and inverters (string inverters or microinverters) will cost different amounts. 

Don’t worry too much about which to choose – your installer will help you make the best decision for your home. The main thing to remember is that a solar system is a 25+ year investment so it’s never worth trading quality for a cheaper price tag.

The size of your solar system

The bigger your solar system, the more you’ll pay. This doesn’t mean you should necessarily get a small system though. 

The key to maximising your solar savings is to size up the right sized solar system for your needs (solar system size is measured in kW). Go too small and your solar system won’t generate enough electricity to keep up with you. 

Plus, the cost per kW tends to decrease as size increases.

Again, you don’t need to be an expert. Your solar installer will help you size up the right system.

Your home

Installing solar panels on tin/colourbond roofs is usually cheaper than tile roofs. This is because tiles are very fragile and sometimes break during installation, so they need to be replaced. 

Similarly, it costs more to install solar panels on multi-storey homes because your installer will need to erect more scaffolding.

Solar rebate

The Victorian Government currently offers solar panel rebates of up to $1400 for eligible households. Click here to find out if you’re eligible to save on the cost of your solar panel installation or get in touch with us today to talk through your options.

How much will your solar system cost?

The best way to understand how much it would cost to put solar panels on your roof is to get a personalised solar quote. 

At Solar Flow, our solar experts will work with you to develop a free quote based on your home, your electricity usage, your budget and your energy goals.

Ready to get started? Get in touch with us today for a free, no obligation quote. Call us on 1300 93 14 24 or send us an email here.