Solar in Perth and WA in 2026: rebates, costs and payback
A 6.6kW system in Perth lands around $5,000 to $9,000 after the federal panel rebate, and WA layers its own Residential Battery Scheme on top of the national battery discount. Here is what solar costs in WA in 2026, what the rebates are worth, and why the DEBS buyback changes the maths.