What Melbourne solar really costs right now: the market in five numbers
Solar pricing is deliberately confusing: advertised prices bake in rebates, quotes bundle different hardware, and the same roof can attract quotes thousands of dollars apart. Here is the Melbourne market in five numbers, checked as of late August 2026.
$4,000 to $9,000: a 6.6kW system installed
That is the realistic band for a standard 6.6kW system in Melbourne after the federal STC discount, which nearly every advertised price already includes. Most decent-quality systems land between $5,000 and $7,500. Below $4,500, ask hard questions about the hardware and who actually does the installation. Above $8,500, you are usually paying for premium panels plus a premium inverter, which can be worth it, or for a heavy sales commission, which is not.
$7,000 to $14,000: a 10kW system installed
Bigger systems cost less per kilowatt because the fixed costs (scaffolding, wiring, the crew's day) spread across more panels. If you are considering an EV or a battery in the next few years, the step up to 10kW is often the best value decision on the whole quote.
Roughly $1,500: the federal discount on 6.6kW
The STC incentive in 2026 is worth about $1,500 on a 6.6kW Melbourne system, and it shrinks every January until the scheme ends in 2030. You may see much larger figures quoted online; most date from years when the scheme paid more. We break down the exact calculation in our STC post this coming Monday.
$1,400: the Victorian rebate
Eligible owner-occupiers (household income under $150,000 since July 2026) get up to $1,400 off through Solar Homes, plus an optional interest-free loan of the same amount. Unlike the STC discount, this one is not automatically in advertised prices, so always ask for an itemised quote showing the price before and after each rebate.
4 to 7 years: typical payback
The band most Melbourne households land in, driven less by the purchase price than by how much of the solar power they use directly. Power you export earns a few cents; power you use saves the full retail rate.
Reading a quote like a professional
An itemised quote should name the exact panel model, the exact inverter model, the number of panels, any switchboard or roof work, and the price before and after rebates. One-line quotes with one number are how the bad end of this industry operates. Our directory lists 200+ Melbourne installers ranked by Google rating, and our brand rankings show which equipment local installers actually carry.
Figures last checked 31 August 2026.