Solar feed-in tariffs in Western Australia
What WA households get paid for surplus solar exported back to the grid in 2026. Market structure, typical rates, time-of-use bands, and the grandfathered schemes still in effect.
How WA's feed-in tariff market works
WA's South West Interconnected System (SWIS) is served primarily by Synergy. The Distributed Energy Buyback Scheme (DEBS) sets a time-varying FiT for Synergy customers. Regional WA is served by Horizon Power with separate rates.
Time-of-use feed-in tariffs
DEBS is explicitly a time-of-use FiT. Exports during the 3 pm–9 pm window earn the peak rate; everything else earns off-peak. Battery storage is unusually valuable in WA because shifting export from midday to peak window quadruples FiT revenue.
What's actually worth chasing
If you have a battery on the SWIS, configure it to discharge into the grid during the 3 pm–9 pm peak window — that earns 10 c/kWh versus 2.25 c/kWh outside it. Most installer setups default to self-consumption only, which leaves the FiT differential on the table.
Authoritative sources
Rates change annually. For current numbers, go directly to the source.
- Regulator / authoritySynergy DEBS information
- Compare retailer offersWA Government Solar in WA guide
Considering a battery for WA?
Battery economics depend heavily on your FiT — the lower your export rate, the more valuable a battery becomes. The federal Cheaper Home Batteries Program rebate steps down 19% on 1 May 2026.
WA solar battery rebate breakdownGet FiT updates when rates change
Most state regulators publish new annual benchmarks in May–June. We'll email you when there's a real update — no filler.