HomeBillLab aims to publish useful household energy information that is transparent about calculations, assumptions, sources and commercial relationships.
Accuracy before volume
We would rather publish a narrower calculator or guide with clear inputs than a precise-looking result built on hidden assumptions. Important figures should be traceable to a source, formula, user input or explicitly labelled estimate.
Primary sources first
Our first choice is normally an official source from the market being discussed: a government agency, regulator, market body, recognised efficiency program or other authoritative primary source. Product-specific specifications may come from current manufacturer documentation. See our Sources page for the hierarchy used in Australia and the United States.
Calculations and assumptions
Calculator pages should explain their main formula and disclose assumptions that materially affect the result. If a default rate, duty cycle, efficiency value or usage pattern is used, it should not be presented as if it were the user’s measured value.
Updates and corrections
Time-sensitive information can become outdated. Pages that depend on changing tariffs, programs, rebates or regulatory information should have an appropriate review cadence. If we identify a material calculation or factual error, the priority is to correct the page.
Advertising and commercial content
HomeBillLab may be supported by advertising or other commercial arrangements. Advertising does not buy a different formula, a favourable calculation result or a change to an editorial conclusion. Sponsored or affiliate relationships, if introduced, should be disclosed where they could affect how a reasonable reader interprets the page.
Independence
HomeBillLab is not a government agency or energy retailer. Links to official sources are provided so readers can verify information and, where appropriate, make decisions using the responsible official service rather than relying only on our summary.
Scope
Our content is general information. A household energy estimate cannot account for every building, product, tariff or personal circumstance. For installation safety, regulated work, contractual decisions, eligibility determinations or personalised professional advice, use the responsible official service or an appropriately qualified professional.