Solar System Sizes & Pricing for Melbourne Homes
Not sure what size solar system your home needs, or what it actually costs? Sunstainable compares 6.6kW, 10kW and larger systems for Melbourne households (with or without a battery) so you can see real pricing factors before you get a quote.
What size solar system does a Melbourne home need, and what does a 10kW system cost?
Most Melbourne households land between 6.6kW and 10kW, depending on roof size, daytime power usage, and whether a battery is part of the plan. As a guide, a 6.65kW system starts from $5,200 installed and a 10.45kW system starts from $8,300 installed, both after the current Solar Victoria rebate. Larger systems and battery pairing are quoted individually after a site assessment, since roof type, shading and switchboard capacity all affect the final price.
Sized to your usage, not a generic package
We size your system around your actual household usage and roof, not a one-size-fits-all box.
Installed by our own team, not a subcontractor
The same Coburg-based crew that designs your system carries out the install.
Battery-ready from day one
Adding a Tesla Powerwall or battery storage is most
cost-effective when done during a solar upgrade
Local to Coburg and Melbourne's north since 2010
We’ve sized and installed solar systems across Melbourne’s northern suburbs for over 15 years, plus larger jobs further out.
What Size Solar System Do You Need?
| System size | Best suited to | Typical panel count |
| 6kW | Smaller households, lower daytime usage | 14 panels |
| 10kW | Larger households, higher usage, or planning to add a battery | 22 panels |
| 13kW+ | High-usage households, homes with Electric Vehicles, larger roofs, or bigger battery pairings | Custom design |
The right size for your home depends on your roof orientation and shading, your household’s daytime power usage, and whether you’re pairing the system with a battery now or later. We work through all three during a free site assessment rather than guessing from a standard package.
Indicative Solar System Pricing
Before you look at these figures: the prices below are indicative estimates only, based on standard residential installations. Your actual price depends on a site inspection, your switchboard and grid connection requirements, roof type, and final system design. It isn’t a quote until we’ve seen your property.
| Package A | Package B | Larger Systems | |
| System size | 6.65kW | 10.45kW | strong13kW+ |
| Panels | 14 × Jinko Tiger Neo 475W solar panels | 22 × Jinko Tiger Neo 475W solar panels | Custom design |
| Inverter | 1 × GoodWe 5kW inverter | 1 × GoodWe 10kW inverter | Custom design |
| Installed price from | $5,200 inc. GST* | $8,300 inc. GST* | Price on application |
| GET A PRECISE QUOTE | GET A PRECISE QUOTE | GET A PRECISE QUOTE |
* Greater Melbourne area. After the Solar Victoria $1,400 rebate, excludes loan. Single-array Colorbond roof installation. Subject to site inspection.
These are starting prices for a standard install, not a quote for your home. Roof type, shading, multi-array layouts, switchboard upgrades, battery pairing and grid connection requirements can all change the final figure. Every system is priced individually after a site assessment.
Pairing a Battery With Your New System
Searching for a 10kW solar system with battery pricing is common for a reason: installing a battery alongside your solar setup is usually much more cost-effective than adding one down the track. If you’re weighing your options, check out our Tesla Powerwall 3 installation page for specs and pricing factors, or ask us about Sigenergy’s all-in-one system during your quote.
Solar System Sizing and Installation Across Melbourne's North
Sunstainable has sized and installed solar systems from our Coburg base since 2010, working across Coburg, Coburg North, Brunswick, Pascoe Vale, Thomastown, Fawkner, Preston, Strathmore, Reservoir and Oak Park, plus larger systems in Glen Iris, Camberwell and Balwyn.
4.7 stars / 24 Google Reviews
CEC - Accredited
Sunstainable has been designing and installing solar systems from Coburg since 2010 - the same in-house team sizes, quotes and installs every system.
Frequently Asked Questions
How much does a 10kW solar system cost in Melbourne?
As a guide, a 10.45kW system (22 panels plus a 10kW inverter) starts from $8,300 installed in the greater Melbourne area, after the current Solar Victoria rebate. Your exact price depends on your roof, switchboard, and whether you’re adding a battery. Get a precise quote for your home.
What size solar system do I actually need?
It depends on your household’s daytime usage, roof size and orientation, and whether you’re planning to add a battery. Most Melbourne homes land between 6.6kW and 10kW. We size yours during a free site assessment rather than recommending a standard package.
Can I add a battery to a 10kW solar system?
Yes. Pairing a battery at install time is usually more cost-effective than adding one later. See our solar battery storage options page for what’s involved.
Is a bigger solar system always better value?
Not necessarily. A system sized above your actual usage exports more to the grid at a lower return than it saves you in avoided usage. We size your system around what your household actually uses, not the biggest package available.
Get the Right Size System for Your Home
Book a free site assessment and our in-house team will recommend the right system size for your household, with the option to add a battery at the same time.
All pricing on this page is indicative only and subject to a site inspection, your grid connection requirements, and final system design. Your exact price is confirmed after we’ve assessed your property.