Backup Power System Cost Perth
Power outages in WA can last hours — sometimes days — especially during summer storms in the Mandurah and Rockingham corridors. A home backup power system keeps your essentials running: lights, fridge, medical equipment, and communications. The right system for your home depends on how long you need backup for and which circuits matter most.
Estimated Price Range
$5,000 - $20,000+
*Wide range reflects the difference between a critical-circuit battery backup (~$5k–$9k) and a whole-home system with multiple battery units ($15k–$20k+). Excludes solar panels.
What affects the cost?
Several factors can influence the final price of your job:
- Total backup capacity required (critical circuits vs whole-home backup)
- Duration of backup needed (2–4 hours vs overnight capability)
- Battery brand and chemistry (LFP vs NMC — affects cost, lifespan, and safety rating)
- Whether existing solar and inverter are compatible with battery storage
- Switchboard modifications needed for backup circuit isolation
Typically Included
- Battery system supply and installation (wall or floor mounted)
- Installation of backup gateway or hybrid inverter if required
- Critical load sub-panel installation for protected circuits
- Automatic transfer switch (ATS) configuration
- Western Power notification and grid connection compliance documentation
Usually Excluded
- Solar panel supply and installation (can be bundled — ask for a combined quote)
- Switchboard full replacement if current board is unfit (quoted separately)
- Generator integration (available as an optional add-on)
Important Note
In WA, any battery system connected to the grid must comply with AS/NZS 5139 and requires Western Power notification via your energy retailer (Synergy). Non-compliant installations can void home insurance and result in forced disconnection. Always use a licensed installer.
Why choose Sparky Local?
We believe in 100% transparent, fixed-price quotes before we start any work. No bill shock, no sneaky add-ons, and no hidden fees. Better yet, every job we complete is backed by our iron-clad lifetime workmanship guarantee. You're not just paying for a service; you're paying for lifetime peace of mind.
Get Your Guaranteed Fixed-Price Quote
Stop guessing. Upload a photo or describe your job for a fast, accurate, and completely free estimate.
Get a Free Quote
As soon as possible