A Landmark Opportunity for WA Homeowners
Western Australia has taken a bold step toward a cleaner, more energy-efficient future by introducing a new rebate for home battery installations. This landmark initiative is set to empower homeowners across the state to take greater control of their energy use, reduce electricity bills, and contribute to a more sustainable grid. As energy prices continue to rise and solar adoption grows, this rebate presents an exciting opportunity for WA residents to invest in reliable energy storage solutions—making solar power even more accessible and practical than ever before.
Maximising Savings Through Rebate Stacking
One of the smartest strategies for WA homeowners looking to install a home battery is “rebate stacking”—the practice of combining multiple financial incentives to significantly reduce upfront costs. Alongside the newly announced WA battery rebate, homeowners may also be eligible for additional programs such as federal incentives, energy retailer offers, or Virtual Power Plant (VPP) participation credits. By carefully stacking these rebates and subsidies, households can maximise their return on investment, accelerate payback periods, and make energy storage more affordable than ever. It’s a savvy approach that turns sustainable living into a financially rewarding choice.
Here’s a clear breakdown of the rebate amounts:
WA Residential Battery Scheme Rebates
- Synergy customers (South West Interconnected System): Receive $130 per kWh of usable battery capacity, capped at 10 kWh, for a maximum rebate of $1,300
- Horizon Power customers (regional and remote WA): Receive $380 per kWh of usable battery capacity, capped at 10 kWh, for a maximum rebate of $3,800
Stacked Rebate Potential
When combined with the Federal Cheaper Home Batteries Program, Synergy-area homeowners can access up to $5,000 in total rebates, while Horizon Power-area residents can reach up to $7,500, for a 10 kWh system
This means Synergy customers get $1,300 from WA plus ~$3,700 federal, and Horizon Power customers $3,800 WA plus ~$3,700 federal—maximizing savings on a full-size 10 kWh battery.
Interest free Loans up to $10,000
The WA Residential Battery Scheme offers an optional interest-free loan of up to $10,000, which can be combined with the rebate to significantly lower your upfront costs. To qualify, your household must earn a combined gross annual income of under A$210,000, verified via your recent tax return. The loan can be used not only for the battery itself, but also for associated equipment—including inverters or even new solar panels—as long as all are installed together. With repayment terms stretching out to 10 years, this zero-interest option allows homeowners to spread the remaining cost of a battery system over time—making the switch to energy storage far more accessible and budget-friendly.
The Cheaper Home Batteries Program is a landmark federal initiative providing a ~30% discount on the upfront cost of installing home batteries. The discount is calculated per usable kilowatt-hour (kWh) of capacity:
- Up to 9.3 STCs/kWh, equivalent to approximately $372 per kWh in 2025.
- After administrative fees, homeowners typically receive around $330–$344 per kWh of usable battery capacity
How it applies to Western Australia:
This national rebate is fully stackable with the WA Residential Battery Scheme. WA homeowners receive the federal discount directly at installation—applied immediately through the installer as a price reduction—and can then layer the state rebate on top. That means WA residents effectively enjoy both:
- The federal 30% per‑kWh reduction (e.g. ~$3,300–$3,720 off a 10 kWh battery), and
- The state rebate ($1,300 for Synergy or $3,800 for Horizon Power customers)
Combined, these incentives make battery systems in WA far more affordable—and incredibly appealing for homeowners aiming to cut energy bills and boost sustainability.
The Power of Stacking: See Your Savings Add Up
To show the full financial impact of combining both the WA Residential Battery Scheme and the Federal Cheaper Home Batteries Program, let’s walk through a real-world example using a 10 kWh battery, which is one of the most popular sizes for homes with rooftop solar.
Hypothetical Scenario: 10kWh Battery Installation
- Battery System Cost (before rebates): $13,000
- Homeowner Location: Perth (Synergy customer)
- Household Income: Under $210,000 (eligible for optional WA interest-free loan)
- Rebate Eligibility: Yes — for both WA and Federal programs
Rebate Breakdown
| Description | Amount (AUD) |
| Original Battery Cost | $13,000 |
| WA Battery Rebate (Synergy – $130/kWh × 10kWh) | –$1,300 |
| Federal Rebate (~$330/kWh × 10kWh) | –$3,300 |
| Final Out-of-Pocket Cost | $8,400 |
If the homeowner opts for the interest-free loan for up to $10,000, they could finance the entire remaining cost over up to 10 years with zero interest—making the investment more manageable month-to-month.
Total Savings: $4,600
That’s over 35% off the original price, plus flexible loan options that eliminate the usual financial barrier to battery ownership.
This example highlights how smart rebate stacking can significantly reduce upfront costs and make energy storage a financially practical choice for more WA families.
Are You Eligible for Battery rebate?
Use this quick checklist to see if you qualify for both the WA Residential Battery Scheme and the Federal Cheaper Home Batteries Program:
- You are a homeowner in Western Australia.
- Your home has an existing or new solar PV system
- You are installing a battery with at least 5kWh of usable capacity.
- The battery system is capable of participating in a Virtual Power Plant (VPP).
- The installation is carried out by a Clean Energy Council (CEC) accredited installer (e.g., Regen Power).
- Your combined household income is under $210,000 (for interest-free loan eligibility under the WA scheme).
