Thinking about getting a solar battery for your home but worried about the cost?
You’re not alone.
The good news is the WA Government is offering a massive rebate and an interest-free loan to make solar batteries way more affordable for local households.
You could score up to $7,500 back on your battery install, and if you’re eligible, get up to $10,000 with zero interest to help cover the rest.
That means more people across Perth and regional WA can finally store their solar energy and use it when the sun’s not shining—without breaking the bank.
But here’s the catch: there’s only 20,000 rebates available statewide. That’s less than 3% of homes in WA.
So if you’re serious about slashing your power bills, cutting your grid reliance, and boosting your home’s value, now’s the time to get your plan sorted before the spots fill up.
Let’s break down how the rebate works, who can apply, and how to lock in your spot early.
WA State Solar Battery Rebate – Quick Overview
The WA Government is putting $387 million behind battery storage to help more households take control of their power. That’s a serious investment.
It’s designed to make batteries more affordable and help families store the energy they’re already generating with solar, instead of sending it back to the grid for next to nothing.
Here’s how it works: when you install a battery, the government gives you a rebate—up to $7,500, depending on your system and where you live. On top of that, there’s a $10,000 interest-free loan available for eligible households to help cover the upfront cost.
That means you don’t need to shell out a massive amount of cash just to make the switch.
At Off Grid WA, we’re already working with people across Western Australia to get ahead of the launch. We’ll help you make sure your system ticks all the boxes and is ready to go when applications open.
There are only 20,000 rebates available, so moving early gives you a better shot at locking it in before they run out.
If you’ve been thinking about adding a battery or upgrading your solar setup, this is the best time to do it.
Program Goals and Household Benefits
The rebate program comes with real benefits for your home, your bills, and the broader WA community.
Here’s how it helps:
- Lower energy costs using stored solar power: Installing a battery helps you use more of the solar energy your panels produce. Instead of sending power back to the grid during the day, you store it and use it later when the sun’s gone.
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Strengthen grid with decentralised batteries: When more homes have batteries, it takes some of the pressure off the main power grid. During busy times, these systems can support the network by releasing energy when it’s needed. This makes the grid more stable and helps reduce the risk of outages across the state.
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Encourage renewable investments: Rebates and loans make solar batteries more affordable for more people. That pushes more households to upgrade their systems or get started with solar for the first time.
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Great for long-term property value: Homes with solar and battery setups are more appealing to buyers. Energy-efficient features are high on the list for people looking to reduce living costs.
If you plan to sell in the future, having a working system in place can increase your home’s value and help it sell quicker.
Battery Rebate Distribution & Limited Availability
The WA Government is putting limits on how many homes can access this rebate, so getting in early matters. There are 20,000 spots across the state, and once they’re gone, that’s it.
Most of those rebates are going to households connected to Synergy and Western Power. If you’re in that group, you’re part of the 19,000 allocations available.
For people in regional WA with Horizon Power, there are 1,000 rebates set aside.
That might sound like a lot, but WA has over 900,000 dwellings. Once the program officially opens, demand will spike, and those spots will start to disappear fast.
It’s a good idea to:
- Check who your energy provider is
- Make sure your system setup qualifies
- Talk to an approved installer now
- Get everything lined up before applications open
When the clock starts, there won’t be time to waste. Those who are prepared will move straight into the queue while everyone else is still figuring it out.
Comparison of State Battery Programs in Australia
Every state has its own way of supporting battery storage, but WA’s program stands out for how much it offers and who can access it.
Here’s a quick look at how it compares to the rest of the country:
Battery Rebate Programs by State
| State | Max Rebate | Interest-Free Loan | VPP Requirement |
| Western Australia | $5,000–$7,500 | ✅ Yes (up to $10,000) | ✅ Required |
| Victoria | $3,500 | ❌ No | ❌ No |
| South Australia | $2,000 | ❌ No | ✅ Required |
| NSW | $3,000 | ❌ No | ❌ No |
WA gives households the highest rebate amount and includes a loan option that doesn’t charge any interest. That’s something no other state is doing right now.
It’s also one of the few places that’s asking for VPP participation, which helps support the energy grid using connected home batteries.
If you’re in WA, this is one of the most generous and flexible programs available.
WA Rebate Structure Breakdown
The rebate amount depends on the size of the battery you’re installing and who supplies your power.
If you’re with Synergy, you’ll get $500 for every kilowatt-hour of battery storage. The rebate maxes out at $5,000, which covers up to 10kWh.
If you’re a Horizon Power customer in regional WA, the government gives you a bit more. You’ll get $750 per kilowatt-hour, up to a maximum of $7,500.
The rebate doesn’t go beyond 10kWh, so even if your battery is bigger, you’ll only be paid for the first 10.
Here’s how that looks in practice:
- A 6kWh battery = $3,000 rebate if you’re with Synergy
- The same battery = $4,500 rebate if you’re with Horizon
- A 10kWh battery = $5,000 rebate (Synergy) or $7,500 rebate (Horizon)
To qualify, your battery needs to meet a few technical rules. It has to be VPP-capable, which means it can be connected and managed as part of a virtual power plant. It also needs to meet Australian safety standards, and stay connected to the internet for monitoring.
Systems that don’t support VPP or don’t meet the size requirements won’t be eligible.
If you’re not sure how big your battery should be or whether your system is VPP-ready, talk to your installer first. They’ll help you choose something that ticks all the boxes for the rebate.
Incentives for Landlords & Rental Properties
This rebate program isn’t just for owner-occupiers. Landlords can also apply, which makes a big difference for rental homes across WA.
To qualify, the rental property needs to have a long-term lease in place. That helps make sure tenants actually benefit from the system, not just the property owner.
If you own a rental, this could be a good time to upgrade. Adding a battery system can boost the value of your property, and it can also make it more attractive to future tenants.
Most renters care about ongoing costs. If you can offer a place with lower energy bills, it puts you ahead in the market.
Here’s what landlords need to keep in mind:
- You must apply directly for the rebate
- The property has to be a residential dwelling
- A valid tenancy agreement is required
- The battery system needs to meet all program rules
This is one of the few energy rebates that actually includes the rental market. It’s a chance for landlords to support clean energy, while improving the appeal and value of their properties.
$10,000 Interest-Free Loans for Batteries & Solar
The rebate helps a lot, but for many people, there’s still a gap between what they can afford and what a full system costs. That’s where the loan comes in.
The WA Government is offering interest-free loans of up to $10,000 for eligible households. This is a proper loan, but without any interest charged across the full term.
You can borrow as little as $2,000, which is helpful for those just topping up their system or adding a smaller battery.
The loan is paid back over 10 years, so the monthly repayments stay low and manageable. That makes it easier for households that can’t cover the full cost upfront, even after the rebate.
Here’s what to know at a glance:
- Loan amount: $2,000 to $10,000
- Term: 10 years
- No interest at all
- Designed to support residential homes with financial need
This setup gives more people the chance to make the switch to solar and battery storage. It’s also a way to stretch your budget without taking on expensive finance or high repayments.
If you’re eligible, this could take a big chunk of pressure off the upfront costs—and get your system up and running much sooner.
Loan Eligibility Based on Household Income
To get access to the interest-free loan, you’ll need to meet the income criteria.
The loan is means-tested, which means it’s aimed at households with lower to middle incomes. While the WA Government hasn’t released the official brackets yet, early estimates suggest two main categories:
- Low-income households earning under $90,000 per year
- Middle-income households earning between $90,000 and $180,000 per year
If your household income falls in either of these ranges, there’s a good chance you’ll qualify once the final numbers are confirmed.
This setup helps make battery storage more accessible for families who need financial support upfront. Without the loan, many people would have to delay or skip the upgrade altogether.
We will keep an eye on the updates and share the confirmed thresholds once the government announces them. That way, you’ll know exactly where you stand and what paperwork you’ll need when applications open.
If you’re unsure, it’s worth having a quick chat with a solar installer now to see where you fit.
Can Be Used for Both Solar + Battery
The interest-free loan isn’t locked to batteries only. You can use it for a new solar system, a battery installation, or both together.
This gives you a bit of flexibility depending on where you’re starting from. If you don’t have solar at all, you can install a full system and add a battery at the same time. If you already have panels, the loan can help cover the cost of just adding storage.
It works for upgrades too, especially if your current setup is a few years old or needs a bigger inverter.
Practical Scenarios: Rebate + Loan in Action
To see how the rebate and loan can work together, it helps to look at real numbers.
These examples show how different setups affect what you’ll actually need to pay out of pocket.
Example Table: How Rebates + Loans Stack
| Scenario | Total Cost | Rebate | Loan | Out-of-Pocket |
| New Solar + Battery (Synergy) | $18,500 | $5,000 | $10,000 | $3,500 |
| Battery Only (Horizon) | $10,000 | $6,000 | $4,000 | $0 |
| Upgrade + Battery (Synergy) | $11,500 | $3,500 | $8,000 | $0 |
These setups show how most households can reduce or even remove upfront costs when the rebate and loan are combined.
The loan bridges the gap between the rebate and full cost, which means you don’t have to delay getting started just because of budget limits.
If you’re working with a trusted installer like Off Grid WA, they’ll help tailor the system and loan amount so it fits your situation.
Eligibility Rules & System Requirements
To qualify for the rebate or loan, your home and battery setup need to meet a few key rules.
Owner-occupiers can apply, and so can landlords, as long as there’s a valid tenancy agreement in place.
The property must be a residential home, not a commercial building or short-term rental.
The battery system itself has to follow technical guidelines to be eligible:
- It needs to be VPP-ready, which means it can work as part of a shared power network
- It must have at least 5kWh of storage
- The installation has to follow Australian Standard AS/NZS 5139:2019, which covers battery safety
- It must have a stable internet connection so it can be monitored properly
If the system misses any of these, it won’t qualify for the rebate or loan. That’s why it helps to work with someone who knows the program inside out.
Off Grid WA can guide you through all of this, check if your property qualifies, and make sure your setup matches every requirement from the start.
Approved Battery Brands List
Likely eligible brands include:
- Tesla Powerwall
- BYD Battery-Box
- Sonnen
- LG Energy Solution
- SolarEdge
- Huawei
- WA-made batteries preferred
8-Step Application Process
Once you’ve checked that your property and battery system are eligible, the next step is getting everything in order for your application.
The process is straightforward, but it helps to know what to expect ahead of time so you don’t miss anything.
Here’s how it works, step by step:
1. Check property and system eligibility
Before anything else, make sure your home qualifies.
The property needs to be a residential address in WA, and your battery system must meet the rebate requirements like minimum size and VPP-readiness.
2. Choose battery system and installer
Pick a battery setup that suits your needs and meets the technical standards.
Go with a trusted installer like Off Grid WA who understands the rebate process and can make sure everything ticks the boxes.
3. Get quote
Ask your installer for a full quote.
This should include system specs, total cost, and a breakdown of what qualifies for the rebate.
4. Apply via WA gov portal
Once the program opens, head to the WA Government’s official portal and fill out the application form online.
You’ll need to upload your quote and property details.
5. Receive rebate approval
If your application is successful, you’ll get a confirmation and rebate approval amount.
This locks in your spot in the program.
6. Install system
After approval, go ahead and book your installation.
Timeframes might apply, so don’t delay once you’ve been approved.
7. Submit post-install docs
Once the system is installed, you’ll need to send in:
- Proof of installation
- Battery specs
- Compliance confirmation
8. Rebate processed or deducted
The rebate will either be paid directly to you or taken off the cost of the system.
Your installer will let you know how it’s handled.
Documents You’ll Need
To complete your application, you’ll need to upload a few documents.
These help confirm you’re eligible and that your system meets the program requirements.
Here’s what to have ready:
- Rates notice or title to show proof of ownership
- Recent energy bill from Synergy or Horizon
- Quote and system specs from your installer
- Proof of income if you’re applying for the loan
- Lease agreement if the property is a rental
Having these sorted early can save you time and help avoid delays once the application window opens.
Approval Time & Rebate Allocation
Once you apply, your spot in the program is based on first-come, first-served.
That means the sooner you get your application in, the better your chances of securing a rebate.
Processing usually takes 2 to 4 weeks, depending on how busy the system is.
If you’re approved, you’ll need to install your system within a set timeframe. Waiting too long after approval could mean losing your rebate.
To avoid missing out, it’s best to start preparing now so you’re ready to go as soon as applications open.
Key Takeaway
he sooner you get your setup ready, the better.
With a limited number of rebates on offer, it’s worth getting ahead now instead of scrambling later.
If you don’t have solar yet, consider starting with a battery-ready inverter so you’re all set when applications open.
Already got panels?
Now’s the time to look at your options for storage or upgrades.
We recommend having a quick chat with our team at Off Grid WA to check your eligibility and get your questions answered early.
We’ll walk you through everything — from checking if your home qualifies to helping you get the paperwork sorted before the rush.
And if you’re not ready to make a decision today, that’s totally fine too.
You can still reach out here or leave your details so you don’t miss updates when the scheme officially kicks off.
A bit of prep now means less stress later — and a much better chance of locking in your rebate.
Frequently Asked Questions
How much is the WA solar battery rebate?
Between $5,000 and $7,500, depending on your provider and battery size.
Can I get the interest-free loan and the rebate?
Yes, you can combine both for maximum savings.
What batteries are eligible?
Only VPP-ready batteries that meet Australian standards like AS/NZS 5139:2019.
Is my rental property eligible?
Yes – if you’re the landlord and have a valid lease agreement.
When does the program start?
Expected July 1, 2025, but could be earlier – prepare now.
