Helping WA households save on energy
BillWise is a free platform that helps Perth families understand their electricity bills, find the right solar and battery setup, and connect with trusted local installers.
Why we built BillWise
Western Australia has some of the best solar conditions in the world, yet many households are still overpaying on electricity. The energy landscape is confusing — multiple tariff structures, changing rebate programs, and an overwhelming number of solar installers making hard-to-compare claims.
BillWise was built to cut through that complexity. We use real WA data — Synergy tariff rates, government rebate amounts, CEC-approved product databases, and Perth-specific solar irradiance — to give you savings estimates you can trust.
Thinking about solar, a battery, an EV charger, or ditching gas? BillWise shows you what actually makes financial sense for your household — not what an installer wants to sell you.
Our values
Transparency First
Published Synergy rates. Published rebate data. No inflated savings claims.
Independent & Free
BillWise is free for households. We earn a small referral fee from installers when you request quotes — this never affects your price or our recommendations.
WA-Specific Accuracy
Built exclusively for Western Australia. We know Synergy tariffs, DEBS/REBS schemes, WA Battery Rebate, and Perth solar irradiance because that is all we do.
Health & Climate
Gas-free homes have measurably better indoor air quality. Electrification is good for your wallet and your lungs.
“Most solar websites want to sell you a system. We just want to show you the maths.”
What BillWise offers
Bill Analysis & Comparison
Upload your Synergy bill or enter your bill amount. We check which tariff actually suits your usage pattern.
Solar & Battery Calculators
Calculate ROI for solar panels, home batteries, EV chargers, heat pumps, and induction cooktops. All calculations use real WA data including STCs, DEBS export rates, and WA Battery Rebate.
Personalized Recommendations
Answer a few questions about your home. We produce a prioritized plan — what to do first, what it costs after rebates, and how long until it pays for itself. No fluff, just numbers.
Verified Installer Network
Request free quotes from CEC-accredited, insured WA installers. We verify credentials and collect customer reviews so you can choose with confidence.
Ready to see how much you could save?
It takes less than 2 minutes. No account required.