The short version
The WA Residential Battery Rebate is for property owners - owner-occupiers or landlords. Tenants can't claim directly. But the same rebate is available to landlords for their rental properties, and a battery is one of the stronger tenant-retention investments a landlord can make.
If you rent
Your path is to talk to your landlord. Three angles that work better than "can we install a battery?":
- The numbers. A Synergy household saves $1,000–$1,500/year on electricity with a battery + 6.6 kW solar. Some of that saving can effectively pass to the tenant through reduced bills (you pay your own power), but the asset and capital gain accrue to the owner.
- The rebate. The state pays up to $5,000 (Synergy) or $7,500 (Horizon) and the federal program adds ~$5,000 on a 13.5 kWh system. The landlord's actual out-of-pocket on a Powerwall 3 install is typically $3,000–$5,000.
- The property value. Houses with solar + battery rent faster and at slightly higher rates in WA's tight rental market. Studies from the eastern states show similar effects on resale value.
If your landlord agrees, you can either contribute to the install cost in exchange for a longer fixed lease, or simply enjoy the lower bills.
If you're a landlord
Three reasons to install on a rental property right now:
1. The economics work even if the tenant captures the bill saving
Because the rebate stack covers most of the install cost, the landlord's net spend is usually $3,000–$5,000. That's lower than the cost of one bad vacancy. The tenant gets the bill saving, but you get the rebate, the depreciation deduction (yes, batteries depreciate against rental income), and the higher tenant retention.
2. Tax deductions
For investment properties, the battery system is a capital asset. You can depreciate it against the property's rental income over its useful life (typically 10 years). Combined with the rebates, the effective post-tax cost is often under $3,000. Talk to your accountant - but the deduction is real.
3. Rental market positioning
In Perth's current rental market, properties with "battery-equipped" in the listing rent within days, not weeks. The bill saving (typically $80–$130/month) is roughly equivalent to a $20–$40/week rent increase from the tenant's perspective - but the headline rent stays the same. You attract better tenants without losing on rent.
The one-per-property rule
The WA rebate is one claim per property address. So if you own multiple rentals, you can claim once per property. If your tenants change, the next owner of the property won't be able to claim again. Use it now while it's available.
Who installs and who maintains?
The landlord typically owns the system - they paid for it, they claim the rebate, they handle warranty issues. The tenant just uses it (which means lower bills). Most landlord-rental contracts handle this implicitly: the property is yours, anything installed by the owner is part of it.
What you'll want to add to a new lease is a paragraph saying the tenant agrees to allow access for warranty inspections (typically once every 2–3 years).
What if I'm leaving in 12 months?
For tenants: probably not worth pushing for a battery install. The benefit accrues over 5+ years.
For landlords selling within 12 months: actually still worth it, because the battery is a tangible value-add on the listing and accelerates sale. The post-rebate cost rolls into the sale price.
The honest conversation
Most landlords have never run the rebate maths. The state rebate is new (2025), the federal stack is new, and most landlords are too busy to deep-dive. If you're a tenant, sending your landlord the link to the calculator with their property details pre-filled is the easiest way to start the conversation.