Solar batteries in Perth
One system, one decision: what it costs, what size you need, and who to trust with the install.
A battery only earns its keep as part of a system — the panels that charge it, the inverter that runs it, and Perth's own sun, tariffs and rebate. This is the desk's plain-English brief on getting solar and storage right the first time, on the SWIS network, with Synergy. No brochures, no pressure — just the numbers and a shortlist of checked WA installers, who pay us a flat referral fee, never a percentage of your quote.
Start with the four questions
Every Perth battery buyer is really asking four things. Each one has a full answer on this desk — start where you're stuck.
Is it worth it?
What a battery actually saves on a Perth bill once you account for the DEBS feed-in rate and your evening usage — and when it doesn't pay.
Read the payback brief02What size do I need?
Matching kilowatt-hours of storage to your night-time load and roof — not the biggest battery, the right one.
Size my system03What does it cost?
Indicative installed prices by system size, before and after the WA Battery Scheme rebate.
See the cost + sizing guide04Who installs it?
Get matched to checked WA installers for real, comparable quotes — you choose who to talk to.
Get matchedWhat you're actually buying
A solar battery is shorthand for four parts working as one. Get the pairing wrong and the battery underperforms — which is why the desk treats it as a system, not a product.
Size the array to charge the battery and cover daytime load.
A hybrid or battery-ready inverter runs the storage; the WA connection rules shape the choice.
Usable kilowatt-hours matched to your evening use, not the headline figure.
DEBS feed-in and the WA Battery Scheme rebate set the economics.
What a Perth system costs
Indicative system tiers for a whole solar-and-battery setup. The full cost breakdown, sizing bands and the current rebate live on the cost + sizing guide — this is the orientation, not the price list.
Smaller — ~6.6kW solar + ~10kWh storage
A couple or a smaller home.
Typical — ~10kW solar + ~13kWh storage
A family with an evening peak.
Larger — ~13kW solar + ~20kWh+ storage
High use, an EV, or whole-home backup.
How the WA Battery Scheme works
Perth is on Synergy (SWIS), so the WA rebate applies — a per-kilowatt-hour subsidy on eligible storage, up to a cap. The current rate, cap and eligible-battery list are shown on the cost + sizing guide, sourced from the WA policy figures rather than stated here.
Ready for real numbers?
Tell the desk about your home and usage. We match you to checked WA installers for comparable quotes — no obligation, and you decide who to speak to.
- 01Answer a few questions about your home, bill and roof.
- 02The desk shortlists installers checked for the WA rebate and connection rules.
- 03You compare quotes and choose — installers pay us a flat referral fee, never a percentage, and it costs you nothing.
Why read this desk
Independent. Not a retailer — we don't sell panels.
WA-specific. Synergy, SWIS and the WA rebate, not east-coast figures.
Checked installers. Matched to your home, not sold to.
Figures sourced. WA numbers verified against the source, never recalled.
The full desk
Everything the hub links down to — the pages that own each sub-question keep their own detail and long-tail.
Start with the four questions, or go straight to a match
The desk lines up the numbers and a shortlist of checked WA installers. You choose who to talk to — installers pay a flat referral fee, never a percentage of your quote.