How Much Does Solar Panel Installation Cost in Australia?
Solar panel installation in Australia is typically quoted as part of a $5,000–$8,500 all-in price for a 6.6 kW system in 2026, after the federal STC rebate — labour, mounting, wiring, and grid connection are already built into that number, not billed separately. Larger 10 kW systems run around $8,000–$12,000 installed.
Solar panel installation is the professional process of mounting panels on a roof, wiring them to an inverter, and connecting the finished system to the electricity grid — in Australia it's carried out by a CEC-accredited installer and quoted as one job, not split into separate equipment and labour invoices.
This guide breaks the price down by system size, shows exactly what an installation quote should include, what pushes the cost up or down, and what a battery adds on top.
Solar installation cost by system size
These are typical fully-installed Australian prices in 2026, after the federal STC rebate — equipment, professional installation, and grid connection as one figure, not itemised separately:
The federal STC rebate is applied by the installer as an upfront discount, so Australian solar prices are almost always advertised and quoted after rebate, not before it.
| System size | Typical installed price (after rebate) | Installation/labour share (approx) | Best suited for |
|---|---|---|---|
| 3 kW | $3,500–$5,000 | $800–$1,200 | Small households, apartments |
| 6.6 kW | $5,000–$8,500 | $1,000–$1,800 | Most Australian homes (most common) |
| 10 kW | $8,000–$12,000 | $1,500–$2,200 | Large households, high usage |
Indicative Australian pricing, 2026, after the federal STC rebate. See the full solar panel cost guide for equipment-only pricing by system size.
The installation share above is an estimate of what installers typically allocate to labour, mounting, and electrical work within the all-in price — it isn't usually itemised on a quote, since the federal STC rebate is applied as a single upfront discount to the whole job.
What's included in an installation quote
A genuine solar installation quote in Australia should cover the full job, not just the panels. Check your quote includes:
- Site assessment — roof condition, orientation, shading, and switchboard capacity checked before install day.
- Mounting and racking — the frame that fixes panels to your roof type (tile, tin, or flat).
- Wiring and inverter installation — DC cabling from the panels to the inverter, and AC cabling from the inverter to your switchboard.
- Grid connection application — lodged with your local distributor so the system can legally export power.
- Compliance certificate — proof the install meets Australian wiring and safety standards.
- STC paperwork — the installer lodges your Small-scale Technology Certificates so the rebate lands as a discount on the price, not something you claim later.
Only use a Clean Energy Council (CEC) accredited installer — it's a requirement to receive the STC rebate, and it's your main protection if something is installed incorrectly.
What affects the price
Within the ranges above, several things move your actual installation price up or down:
- Roof type and pitch — tile roofs generally cost more to mount on than tin/colorbond; steep or multi-storey roofs add scaffolding and time.
- Switchboard and meter — older switchboards sometimes need an upgrade before a system can be connected, which adds to the job.
- Distance and access — regional and rural installs can carry a travel surcharge; easy roof access lowers labour time.
- Panel and inverter tier — premium Tier 1 panels and name-brand inverters cost more than budget equipment, though installation labour is similar either way.
- Crew size — larger systems typically need a bigger crew for a single-day install, which is already factored into the per-kW price above.
Cost to install a battery
Adding a battery to a new or existing solar system typically brings a 6.6 kW system to $12,000–$20,000+ installed. Battery installs need extra electrical work — a hybrid inverter or additional switchgear — and usually take a full day on site rather than the half-day a panels-only install needs. Federal and some state rebate schemes reduce this net price; see our solar battery guide and rebate guide for the full cost and eligibility breakdown.
How to get an accurate installation quote
Because installation cost varies by roof, location, and switchboard condition, the only way to get an exact price is a site assessment — a desktop quote is always an estimate. When comparing installation quotes:
- Confirm the price is all-in (equipment + labour + grid connection), not equipment-only with installation "to be quoted" separately.
- Ask whether the installer is CEC-accredited and lodges the STC paperwork on your behalf.
- Get two to three quotes — installation labour pricing varies more between installers than panel pricing does.
- Ask what happens if a switchboard upgrade is needed after the site visit — some installers quote it as a fixed add-on, others as a variable cost.
A free on-site assessment gives you a fixed, itemised installation price rather than a rough estimate. See whether solar is worth it for your home, or get your exact number.
Common questions
How much does solar panel installation cost in Australia?
Installation is generally quoted as part of the total system price, not separately. A fully installed 6.6 kW system — the most common size — typically costs $5,000–$8,500 in 2026, after the federal STC rebate is applied as an upfront discount by your installer.
Is installation included in the advertised solar price?
Usually yes. Australian solar quotes are normally all-in — equipment, mounting, wiring, and grid connection together — with the STC rebate already deducted. Always confirm with your installer whether installation and grid connection are included before signing.
How much does it cost to install a solar battery?
Adding a battery typically brings a 6.6 kW system to $12,000–$20,000+ installed, since battery installs need extra electrical work and usually a full day on site. Federal and state rebates can reduce this net cost — check eligibility before you get quotes.
Do I need a CEC-accredited installer?
Yes. A Clean Energy Council-accredited installer is required to receive the STC rebate, and it's your main protection against a faulty install. Ask any installer for their CEC accreditation number before signing a contract.
Does installation cost vary by location in Australia?
A little. Equipment costs are largely the same nationally, but regional and rural installs can carry a travel surcharge, and older switchboards needing an upgrade add to the job regardless of state.