Solar rebates in Western Australia: what you can actually claim
WA Residential Battery Scheme: up to $1,300 off for Synergy customers, up to $3,800 for Horizon Power (regional) customers.
What is different about Western Australia
At 30c a unit Western Australia sits 4th of 8 on retail price, with a feed-in tariff of 2c. It averages 5.5 peak sun hours a day.
The federal rebate, which applies everywhere
Western Australia has no state panel rebate, so the federal STC is the incentive that comes off a new solar system. The DEBS scheme is what pays you for exported energy.
It is not a cheque. It is a discount applied at the point of sale by the installer, who claims the certificates. That means the number you care about is the price after it comes off, and it is the only number worth comparing between quotes.
Batteries
The WA Residential Battery Scheme takes up to $1,300 off for Synergy customers, or up to $3,800 for Horizon Power customers in regional areas, on top of the federal Cheaper Home Batteries Program.
Interest-free finance
Interest-free loans available through Synergy for eligible WA homeowners. It does not reduce the price, it spreads it, which is worth knowing before it is presented as a discount.
What it looks like once the rebates come off
Four households in Western Australia, panels only, after everything they are entitled to:
| Household uses | Their bill a quarter | System | After rebates | Saves a year | Pays for itself |
|---|---|---|---|---|---|
| 10 kWh | $373 | 5–6.6kW solar | $5,270 to $7,300 | $430–$640 | 10+ years |
| 15 kWh | $510 | 6.6kW solar | $6,050 to $8,050 | $590–$880 | 8–10+ years |
| 22 kWh | $701 | 10–13kW solar | $7,800 to $12,800 | $910–$1,360 | 7–10+ years |
| 30 kWh | $919 | 10–13kW solar | $7,800 to $12,800 | $1,130–$1,690 | 6–9 years |
Every figure here is produced by this site's calculator, not copied from a price list.
How to check a quote against this
Ask for the price before rebates and the rebate amount as separate lines. A quote that only shows the after-rebate total is not wrong, but it makes it impossible to tell whether the rebate has been applied in full or quietly used to pad the margin underneath it. Then ask what happens to the price if the rebate value changes between signing and installing, because certificate prices move.
$2,000 difference.
That is the gap between two quotes for the same 6.6kW system in Western Australia, in the same week. Not build quality, not a better job. Overheads, how full the diary is that month, and what the person at your kitchen table thinks you will agree to. On solar with a battery the same gap is $7,900.
Closing that gap is what I do. I already know what installers in your area are quoting this month for this equipment, so I get you the bottom of that range for the same system other companies charge thousands more for. It costs you nothing. The installer pays me, and only if you go ahead, which is why there is no reason for me to push you at a bigger system than you need or at a dearer installer.
Get your own numbers, then get them priced properly
The table above is four example households. Two minutes of questions gets you your system size, what it should cost after rebates in Western Australia, and a ten-year projection built on your roof and your usage. Then I find the bottom of that price range for you.
Run my numbers, freeNo installer buys placement or ranking here, and nothing reaches an installer unless you ask.
Common questions
What solar rebates can I get in Western Australia?
WA Residential Battery Scheme: up to $1,300 off for Synergy customers, up to $3,800 for Horizon Power (regional) customers.
Do I get the rebate as a cash payment?
No. It is applied as a discount by the installer at the point of sale, who claims the certificates. Compare quotes on the price after the rebate has come off.
What does solar cost in Western Australia after rebates?
A 6.6kW system for a mid-sized household comes to $6,050 to $8,050 after rebates. The spread is the installer, not the equipment.
Does the panel rebate apply to a battery-only install?
No. Panel rebates apply to new panels. If you already have solar and are adding storage, the federal battery rebate applies but the panel incentives do not.