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Solar Panels in Perth 2026, Installation Costs, Battery Prices, WA REBS, and How to Find a Licensed Solar Installer Near You

Perth solar panel guide 2026: how much solar panel and battery installation costs in Perth, WA Renewable Energy Buyback Scheme (REBS), and how to find a Clean Energy Council accredited solar installer near you.

By Perth Daily · Published 20 July 2026

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Solar Panels in Perth 2026

Perth has Australia's best solar resource, 3,200+ hours of annual sunshine and 5.0+ peak sun hours per day on average make Perth solar panels among the most productive in the world. All solar installation must be carried out by a CEC accredited installer. Verify at cleanenergycouncil.org.au. Perth's near-perfect solar conditions and Western Australia's Synergy electricity network create a specific but very productive solar environment.

How Much Does Solar Panel Installation Cost in Perth 2026?

6.6kW solar system (supply and install, no battery), typically $4,000-$6,500 in Perth (after STC rebate)
10kW solar system (supply and install, no battery), typically $6,200-$9,800 in Perth (after STC rebate)
13.2kW solar system (supply and install, no battery), typically $8,000-$12,000 in Perth (after STC rebate)
6.6kW solar + 10kWh battery (supply and install), typically $10,800-$16,200 in Perth
10kW solar + 13.5kWh battery (supply and install), typically $14,500-$21,500 in Perth
Battery only (10kWh, supply and install, existing solar), typically $7,200-$12,500 in Perth
STC rebate value (6.6kW, 2026, Perth zone 4), approximately $2,400-$4,100 in Perth

Perth REBS Feed-In Tariff and Solar Oversupply Challenge

Perth is connected to Synergy's SWIS grid, which uses the Renewable Energy Buyback Scheme (REBS), providing a feed-in tariff of approximately 10c/kWh (2026, subject to change). Perth's solar uptake has been so high that the SWIS grid faces curtailment periods during high solar output days, Synergy has introduced time-of-use tariffs and is encouraging battery storage to reduce midday export pressure. Perth homeowners installing solar in 2026 should strongly consider battery storage to capture midday solar generation that would otherwise be exported at low rates or curtailed, and instead use it in the evening when grid prices are higher.

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