Due to overwhelming demand (installations surged from ~200/day to over 1,500/day), the government is restructuring how rebates are calculated to keep the program sustainable through 2030.
1
Faster rebate decline: The STC factor will now reduce every 8 months instead of annually — the rebate shrinks more quickly over time.
2
Tiered support by battery size: Full rebate for the first 14 kWh; 80% for 14–28 kWh; only 15% for 28–50 kWh. Larger batteries get significantly less per kWh.
💡 Install before 1 May 2026 to lock in today's higher rebate — especially for batteries over 14 kWh.