This is the first post on Watt's My Rebate. We thought it was worth writing one before getting into the practical stuff - because trust is the only currency a comparison site has, and we want to be upfront about who we are.
The gap we kept hitting
When the WA Residential Battery Rebate Scheme launched on 1 July 2025, we - like a lot of WA homeowners - went looking for a clear, accurate breakdown. We didn't find one.
National comparison sites treated WA as a footnote. They got the Synergy vs Horizon split wrong (or ignored it entirely). The calculators either didn't exist or used national averages that bore no relation to WA tariffs.
Local installer websites were worse. Every one of them pretended to be an objective comparison while quietly recommending the brand they happened to install. Their "rebate calculators" - when they had them - were designed to maximise the rebate figure shown, not to be accurate.
The gap was obvious: a properly WA-specific, calculator-driven, genuinely independent resource. So we built one.
What this site does
Three things:
- Calculator that gets the maths right. Combines the WA state rebate and federal Cheaper Home Batteries Program with your specific postcode, bill, solar and battery size. Auto-detects Synergy vs Horizon. Shows you payback, annual savings and 10-year cashflow in real time.
- Honest installer comparison. We've researched the WA installers actively operating in 2026. They're listed with real ratings, years in WA, accreditation status, service areas. We never let installers pay to change their ranking position - only to add a clearly-marked "Featured" badge.
- Quote routing. When you're ready, we'll send your details to up to 3 SAA-accredited installers servicing your suburb. That's it. No spam. No data sales. Maximum 3 installers per request, ever.
What this site doesn't do
- We don't install batteries. Ever. We don't have a side gig with one installer. We're not affiliated with any manufacturer.
- We don't sell your data. Your details go to the three installers you ask for, and stay between you and them.
- We don't pretend rebate rates we haven't verified. Every number in the calculator is checked against the published scheme rates at energy.gov.au. If the scheme rules change, we update within 48 hours.
- We don't push you to install. About 30% of homeowners who run our calculator land in the "wait, this doesn't make sense for you" bucket. We tell them so - even though we earn nothing from that 30%.
How we make money
Two ways:
Per qualified lead. When you submit our quote form and request matches, the three installers we match you with each pay us a small fee - between $40 and $150 depending on how qualified the lead is (how soon you're installing, etc.). They pay this whether or not they win your business.
Featured listings. Some installers pay a flat monthly fee to display a "Featured" badge on the installer comparison page. We mark every featured listing clearly. Featured status doesn't change the order in which installers appear - it's purely a visibility upgrade.
That's it. We don't take cuts of the install itself, so we're not incentivised to push you toward bigger systems. We don't run display ads. We don't have premium tiers. The site is free, ad-free and aligned with you getting an accurate quote.
The principles we wrote down before launching
- Independence over income. If we have to choose between honest analysis and a paying installer, we choose the analysis. Always.
- WA-first. Every page, every calculation, every recommendation is WA-specific. We don't repackage national content.
- Transparent maths. Show the working. Every number on the calculator has documented logic. We publish the methodology, not just the result.
- Maximum 3 quotes per request. Not 5. Not "up to 8." Three. So you can compare meaningfully.
- Honest about edge cases. Renters can't claim. Off-grid is excluded. Small bills don't justify a battery. We say all of that on the relevant pages.
- Update within 48 hours of any rule change. If energy.gov.au or the WA government adjusts rebate rates, the calculator updates within two days.
What's on the site today
If you want the practical side: try the rebate calculator first. Pop in your postcode and bill - 30 seconds and you've got an accurate estimate of your combined rebate.
Want to learn the rebate inside-out? The how it works guide is the most thorough WA-specific explanation you'll find. Includes the Synergy vs Horizon breakdown, eligibility, application steps, and the common mistakes to avoid.
Need to choose between batteries? The three brand reviews (Powerwall 3, Sungrow SBR, BYD Battery-Box) cover what 95% of WA homeowners are choosing between.
And when you're ready: request three quotes. Four questions, 60 seconds, no spam.
One ask
If you find the site useful, share it with one WA neighbour or family member who's considering a battery. Word of mouth is how independent comparison sites grow - and how we stay focused on accuracy rather than chasing ad revenue.
- Christian, founder · Perth, WA · May 2026