No bill handy? Get your savings score instead
In our modelled Perth scenarios, a home with solar and a battery cuts its grid bill by 60–80%. BillWise cracks yours free, in under 60 seconds.
100% free · WA-specific rebates · no email required
Three answers and BillWise scores what solar, a battery or going all-electric would do for your place, against real Synergy rates.
Free, instant, no email. Your score opens the full calculator with everything pre-filled.
Start with just your postcode and BillWise takes it from there.
You don't need to commit to anything. Just see the numbers.
A few quick questions: your bill amount, household size, and what you are interested in. In about 2 minutes.
We crunch the numbers using real WA tariff rates and rebates. You get costs, payback periods, and a priority order.
Request quotes from verified Perth installers. Nothing is shared with an installer until you ask — and you're never obliged to buy.
One worked example, modelled on real WA tariffs, rebates and 2026 system pricing. This is what a cracked case looks like.
$2,487
saved per year in this modelled scenario
The evening block is the case: 3pm to 9pm carries most of this bill, exactly the window a battery covers.
Illustrative example, not a real customer. Your verdict comes from your own bill.
View more example scenariosOur tools check your bills against WA tariffs, rebates and install pricing, then show what to do first and what it saves.
Upload your Synergy bill and we'll recalculate it line-by-line, catching errors and revealing hidden savings.
We track every WA rebate: SRES, DEBS, the Battery Scheme and council programs, so you never miss a dollar you're owed.
Model solar, battery and EV scenarios and see exactly how each upgrade affects your bills over 25 years.
Compare WA gas plans, analyse your gas bill, and see whether going all-electric saves you money.
Keep going: analyse a bill · battery storage guide · example Perth scenarios · get free quotes
Solar, batteries, EV chargers, heat pumps. Here is what each one does for your electricity bill, and where to start.
Perth averages 5.0 peak sun hours a day, among the best in the country. A rooftop system is usually the first upgrade that pays for itself.
Store the solar you make by day and use it through the evening peak, instead of buying it back from the grid.
Charge at home off your own solar and skip the petrol station. Daytime charging uses power you would otherwise export cheaply.
Heat pump hot water uses a fraction of the energy of an electric or gas element. One of the easiest ways to drop the gas bill.
Going all-electric is mostly about your bill. It also means cleaner air indoors and more say over what you pay each quarter.
Our modelled Perth scenarios put a solar-and-battery home at 60–80% off its grid bill. Going all-electric saves more again.
A gas cooktop burns fuel right inside your kitchen. Cooking with electric or induction keeps that combustion, and its indoor fumes, out of the house.
Make your own power by day and store it for the evening. You lean on the grid, and its price rises, a lot less.
A working solar system stays with the house when you sell. It is a paid-off asset the next owner inherits.
Every area has different solar potential. Pick yours.
Built for WA households who want the numbers before the sales pitch. Start with your postcode and BillWise takes it from there.
