How the numbers on this site are made
Where each figure comes from, how we keep it current, and what to do if you spot a mistake.
Last checked
We don't make up figures. Rebate amounts come from the government program's own pages wherever they publish one. Where a program leaves the amount to retailers or installers, we say so instead of guessing.
Where the figures come from
- Rebates and rules: the official program page, regulator or government department first: Solar Victoria, the Victorian Government's energy pages, NSW Climate and Energy Action, the Essential Services Commission of South Australia, the Queensland Government, the National Construction Code, the Building and Plumbing Commission, Consumer Affairs Victoria and the NSW Government.
- Prices: published 2026 price guides. At the moment that's a home improvement guide site and the price guide of a south-east Queensland trades business, and we label those figures as industry-reported rather than official. We say whether a range is supply-only or installed, because the two differ by hundreds of dollars.
- Worked examples: a round figure inside a sourced range, with every reduction taken from a sourced figure. They're marked as examples, not prices.
Every figure on a page links to its source, and each page lists its sources with the date they were verified.
How we keep them current
Every figure carries an expiry date. Before each update we run a check that lists anything near or past that date, and a second check that opens every source link. A figure is re-verified at its source before it stays. Rebate programs change on published schedules, so this matters more than anything else we do.
Who writes and checks the guides
The name of the person responsible for the guides will be published here before this site launches. Until then, every figure is checked against its linked source, and you can check it yourself.
Corrections
If a figure is wrong or out of date, tell us and include the source that shows it. We check the source, fix the page if we got it wrong, and note material corrections in the update log below. Operator details are published here before this site launches.
Update log
- Re-checked every figure at its source. Corrected the NSW heat pump discount to the official maximums only, moved Victorian Energy Upgrades amounts to the Victorian Government's own page, added Victoria's 1 March 2027 gas hot water rule, and updated temperature rules to the National Construction Code 2025 and the Building and Plumbing Commission.
- First version of the guides, calculator and state rebate pages.
What this site isn't
We're not a government agency and aren't affiliated with Solar Victoria, Victorian Energy Upgrades, the NSW Energy Savings Scheme, REPS or any Queensland program. Nothing here is financial, legal or plumbing advice. Eligibility for any rebate is decided by the program, not by us.
How the site is paid for
When quote requests open, we may pass a request to licensed plumbing businesses if you ask us to, and those businesses may pay us for the introduction. It doesn't change what you pay or the figures we publish.
We also sell one managed website plan for plumbing businesses. Businesses on the plan get a labelled listing beside our guides, and it has no effect on the prices, rebates or rules we publish.
This site may show advertising. Ads never change our figures.
Who runs this site
Operator details are published here before this site launches.