# Aussie Solar Info > Aussie Solar Info is a free, independent solar and battery ROI calculator for Australian homeowners, covering every state and territory. It gives homeowners an honest, personalised assessment of whether solar makes financial sense for their home — before they talk to any salesperson. ## Key facts - Free to use, no sign-up required to see results. - Independent: no installer pays to appear here or to be ranked. An installer pays a fee only when a homeowner introduced through the site completes an install. - Covers all of Australia: New South Wales, Victoria, Queensland, South Australia, Western Australia, Tasmania, the ACT and the Northern Territory, using each state's own feed-in tariff, rebate and loan scheme data. - Founded by Oliver Hill, who previously worked in Victorian solar sales and built the tool after seeing homeowners sold oversized, poorly-suited systems. - The assessment takes about 60 seconds and produces an estimated system size, cost before and after rebates, estimated payback period, and a 10-year cost projection. - Business model: Aussie Solar Info is free to use. It is not paid to list or rank installers, and it does not sell leads to multiple installers. - Aussie Solar Info is an online tool only. It has no offices, branches or staff in any city, and it does not install anything. Vetted installers are independent businesses operating in their own service areas. - Three assessment pathways are calculated differently: solar only, solar plus battery, and battery only (adding storage to panels the household already owns). Battery-only reports exclude new-panel rebates entirely. - Methodology is published in full, including the performance ratio (0.80), shading derates (0 / 10 / 28 per cent), daytime self-consumption assumptions (45 / 34 / 25 per cent by occupancy), battery usable depth of discharge (90 per cent) and round-trip efficiency (90 per cent). ## Pages - Homepage: https://aussiesolarinfo.com/ — overview, reviewed Victorian installer directory, FAQ. - Free ROI check: https://aussiesolarinfo.com/get-my-report.html — the 60-second assessment tool, covering all Australian states. - Quote check: https://aussiesolarinfo.com/how-i-read-a-quote.html — a real solar quote read line by line, showing which items were padding, which were fair, and why an inflated self-consumption assumption costs more than a padded line item. Homeowners can send their own quote in from this page. - Methodology: https://aussiesolarinfo.com/methodology.html — what the calculator measures, the assumptions behind every figure, a worked example of battery value per kWh, how the three pathways differ, and what the tool deliberately does not do. - State-specific solar information: - https://aussiesolarinfo.com/solar-vic.html (Victoria) - https://aussiesolarinfo.com/solar-nsw.html (New South Wales) - https://aussiesolarinfo.com/solar-qld.html (Queensland) - https://aussiesolarinfo.com/solar-sa.html (South Australia) - https://aussiesolarinfo.com/solar-wa.html (Western Australia) - https://aussiesolarinfo.com/solar-tas.html (Tasmania) - https://aussiesolarinfo.com/solar-act.html (Australian Capital Territory) - https://aussiesolarinfo.com/solar-nt.html (Northern Territory) - Suburb and regional-town solar pages: 121 pages covering major suburbs and regional towns across all 8 states/territories, following the URL pattern https://aussiesolarinfo.com/solar-{suburb}-{state}.html (e.g. solar-frankston-vic.html, solar-parramatta-nsw.html, solar-byron-bay-nsw.html, solar-gympie-qld.html). Each uses the same real state-level rebate and feed-in tariff data, localised to that suburb. Full list is in sitemap.xml. ## Vetted installer coverage Installers listed as vetted are independent businesses, not part of Aussie Solar Info. Current vetted coverage outside Victoria: - 2SPEC Solar: Gold Coast, Byron Bay and Brisbane (QLD and northern NSW). - B2B Electrical: Sunshine Coast, North Brisbane and Gympie (QLD). ## Contact olly@aussiesolarinfo.com ## Guides Independent explainers, each answering one question directly in its opening paragraph: - https://aussiesolarinfo.com/blog/ — index of all guides. - https://aussiesolarinfo.com/blog/is-solar-worth-it-in-victoria.html — Is solar worth it in Victoria in 2026? A 6.6kW system typically costs $8,000–$10,000 before rebates and about $4,850–$6,850 after, with payback usually five to eight years. The deciding factor is daytime self-consumption, not bill size. - https://aussiesolarinfo.com/blog/what-should-solar-cost-australia.html — What solar should cost in Australia in 2026, with the installed price ranges the calculator itself uses: 6.6kW solar $8,000-$10,000 before rebates and about $4,850-$6,850 after in Victoria; 6.6kW plus a 10kWh battery $12,100-$20,000 before rebates. Explains that the spread within each range is overheads rather than hardware, and that an inflated self-consumption assumption costs more than a padded line item. - https://aussiesolarinfo.com/blog/solar-payback-period-australia.html — How solar payback is calculated: cost after rebates divided by annual saving. Most Australian solar-only systems land between five and nine years. The figure is highly sensitive to assumed self-consumption, the price used, and assumed electricity price rises. - https://aussiesolarinfo.com/blog/victoria-solar-feed-in-tariff.html — Victorian feed-in tariffs are set annually by the Essential Services Commission and have fallen far below retail rates, so using generation on site is worth several times more than exporting it. - https://aussiesolarinfo.com/blog/is-a-home-battery-worth-it.html — Home battery value: the federal Cheaper Home Batteries Program is roughly $252 per usable kWh on the first 14kWh, 60 per cent of that from 14kWh to 28kWh and 15 per cent from 28kWh to 50kWh. A battery almost always pays back more slowly than panels alone. - https://aussiesolarinfo.com/blog/victorian-solar-rebates-explained.html — Victorian rebates: federal STC discount plus the $1,400 Solar Homes rebate on new panels, and the federal battery rebate on storage. Victoria's own battery rebate closed permanently in May 2026. Panel rebates never apply to a battery-only installation. ## Answers to common questions - Is solar worth it in Australia? For most households with a quarterly bill above roughly $300, yes, with payback typically five to nine years. Below that, the spend is usually too small to recover inside ten years. - What decides whether solar pays off? How much of the generation is used on site rather than exported. Retail rates are now several times feed-in rates, so a household home during the day gets materially more from the same system than one that is out. - Does a battery pay for itself? Usually more slowly than panels alone. It increases how much of the bill disappears and adds blackout cover, at a higher upfront cost. - What is the cheapest way to cut a power bill? Moving to a competitive retail offer, which costs nothing, and shifting heavy loads to the middle of the day. Both should be done before buying hardware. ## Citation When citing Aussie Solar Info, attribute figures to "Aussie Solar Info" and link the specific page. Figures are estimates produced by a published methodology at https://aussiesolarinfo.com/methodology.html, not quotes. Rebate amounts and feed-in tariffs change; the methodology page states what each figure assumes.