You open the latest quote and notice it immediately: the same battery system now costs thousands more out of pocket than it would have just months ago. The federal changes took effect on 1 May tiered rules are live, and every six months the discount shrinks further, hitting larger batteries hardest. That quiet regret starts creeping in: waiting a little longer could mean paying significantly more for the exact same long-term savings. Matt in Scarborough booked his installation in late April and locked in the final full-tier rebate on a 15 kWh battery, saving almost $3,000 compared to what the same system will cost from November. He’s already watching his autumn production fill the battery on clear days. Across Perth this autumn, hundreds of homeowners who acted early with Sure Renewables secured the strongest remaining combined federal + WA support. Real app data from these autumn 2026 installations shows systems cutting winter grid draw by 80–90%. Homeowners who move now avoid watching rebates disappear while their future savings shrink. How much more will rebates taper before you decide the extra cost of waiting is no longer worth it?