What changed
Every time we change a data file that drives rates, schemes, FiTs or reference costs, we record it here. This page is the public audit trail behind the verified stamps you see on articles. Subscribe via RSS.
Launch data seed: federal Cheaper Home Batteries Program rates (STC factor 6.8 from 1 May 2026), state scheme summaries for WA/NSW/VIC/QLD/SA, FiT ranges, and reference system costs.
Affected: /, /battery-rebate/, /battery-rebate/calculator/, /battery-rebate/what-changed-may-2026/, /battery-rebate/wa/, /battery-rebate/nsw/, /battery-rebate/vic/, /battery-rebate/qld/, /battery-rebate/sa/, /feed-in-tariffs/, /costs/10kwh-battery-cost/, /costs/13-5kwh-battery-cost/, /what-changed/
Federal program moved from flat STC factor to three-tier structure (100% / 60% / 15%). STC factor set at 6.8.
Affected: /battery-rebate/, /battery-rebate/what-changed-may-2026/, /battery-rebate/calculator/
Federal STC factor stepped down to 8.4 (flat rate, pre-tier era).
Affected: /battery-rebate/, /battery-rebate/what-changed-may-2026/
Cheaper Home Batteries Program commenced with flat STC factor 9.3.
Affected: /battery-rebate/
Noted: SolarQuotes acquired by Origin Energy (relevant to independence comparison pages).
Affected: /compare/who-owns-solarquotes/, /compare/solarquotes-alternatives/, /about/