Solar Battery Installation Perth
Perth Solar Battery Installation Experts
Perth has some of the best conditions in Australia for rooftop solar, but many households still send a large share of their daytime solar power back to the grid. With WA’s current Distributed Energy Buyback Scheme offering lower export rates outside peak periods, using more of your own solar can often be more valuable than selling it back. Synergy’s DEBS rates from 1 July 2025 are 10c/kWh for exports between 3pm and 9pm and 2c/kWh at other times.
A solar battery gives Perth homeowners a practical way to store excess solar power during the day and use it later when the household needs it most. This can be especially useful for homes with higher evening energy use, growing air conditioning demand, electric vehicle charging, or a desire to rely less on the grid.
At Aus Energy Solar, we install solar battery systems designed around your existing solar setup, household usage, tariff structure and long-term energy goals. Whether you are adding a battery to an existing system or planning a new solar and battery installation, we can help you choose a setup that makes sense for your home.
For a broader overview of battery options, visit our solar batteries service page.
Why Install a Solar Battery in Perth?
Maximise your solar investment
Many Perth homes generate strong solar output during the middle of the day, when household demand is often lower. Without a battery, excess power is usually exported to the grid for a feed-in credit.
A battery helps you keep more of that solar power for your own use. Instead of relying on grid electricity in the evening, your home can draw from stored solar energy generated earlier in the day.
This can be useful for households that use more power after work and school, including cooking, lighting, heating, cooling, laundry, pool pumps, entertainment systems and EV charging.
Reduce exposure to rising electricity prices
WA residential electricity prices are set by the State Government. From 1 July 2025, Synergy’s Home Plan A1 electricity charge is 32.3719c/kWh, with a daily supply charge of 116.0505c/day.
A battery cannot remove your connection to the grid, but it can reduce how much electricity you need to buy during higher-use periods. For many Perth households, the value of stored solar is not just in the feed-in credit, but in avoiding grid usage when solar is no longer being generated.
Stay powered during outages
Some solar batteries can provide backup power during a blackout, but this depends on the battery model, inverter setup and how the system is configured.
This is important because not every battery installation automatically powers your home during an outage. If backup power is a priority, we can design the system to support selected essential circuits, such as your fridge, lighting, internet, garage door, or key appliances.
For more detail, read our guide on how to use solar during a power outage.
Gain greater energy independence
A solar battery gives your home more control over when and how solar energy is used. This is particularly relevant in Perth, where solar generation is strong during the day but energy use often rises later in the afternoon and evening.
Battery storage can help reduce reliance on grid electricity, improve self-consumption and support a more flexible home energy setup as more households move towards electric appliances, EV charging and smart energy management.
Need assistance? Call us today, and we will help you choose a suitable solar battery for your solar system.
Talk To Us About Perth Solar Batteries!
Need a solar battery installed in Perth? Talk to our team today, we can help get you saving energy!
Is a Solar Battery Worth It in Perth?
A solar battery can be worthwhile for many Perth homes, but the value depends on how your household uses power. It is not a one-size-fits-all upgrade.
A battery may make sense if:
- You generate excess solar during the day
- You use a lot of electricity in the late afternoon or evening
- Your feed-in tariff is low compared to your grid usage rate
- You want backup power for essential appliances
- You are planning to add an electric vehicle or increase household electrification
- You have a suitable solar system size and enough roof generation to charge the battery
- You want to reduce grid dependence over the long term
A battery may offer less value if your household uses most of its power during daylight hours, your solar system is too small to charge a battery properly, or your daily energy use is already very low.
The right battery size also matters. Oversizing a battery can increase upfront cost without improving savings, while undersizing may limit how much stored solar you can actually use. For help choosing the right capacity, read our guide on .
What Size Solar Battery Do You Need?
Choosing the right battery size depends on how much electricity your Perth home uses after sunset and how much excess solar energy your system produces during the day.
Battery capacity is measured in kilowatt-hours (kWh). As a general guide:
- Smaller batteries suit households looking to reduce evening grid usage
- Mid-sized batteries are ideal for families with higher night-time consumption
- Larger systems are better suited to homes with significant daily usage or broader backup requirements
The right size depends on:
- Your average daily energy consumption
- How much solar energy you currently export
- Your tariff structure
- Whether you want blackout protection
- Future plans, such as electric vehicle charging
Installing a battery that is too small may limit the benefit, while oversizing can increase upfront costs without improving returns.
We analyse your solar production and usage patterns before recommending a battery size that aligns with your household goals.
Perth Solar Rebates and Incentives
Solar and battery incentives in WA can change, so it is important to check what applies before installing.
WA Residential Battery Scheme
The WA Residential Battery Scheme is open and provides one-off rebates and no-interest loans to help eligible households purchase residential batteries. The WA Government states that combined state and federal rebates on a 10kWh battery can reach $5,000 for Synergy customers and $7,500 for Horizon Power customers, with eligibility requirements including participation in a Virtual Power Plant.
For most Perth households connected through Synergy, this means the state rebate may help reduce the upfront cost of an eligible battery when installed through an approved vendor and connected to an approved Virtual Power Plant product.
Federal battery incentives
The Federal Government’s Cheaper Home Batteries Program is now available for eligible small-scale battery systems connected to new or existing rooftop solar. The program offers a discount of around 30% on eligible battery systems between 5kWh and 100kWh, with the discount generally applied through accredited installers or retailers.
This means Perth households may be able to combine federal battery support with WA-specific battery incentives, provided the system, installer and eligibility requirements are met.
STCs and solar installations
Small-scale Technology Certificates can help reduce the upfront cost of eligible solar panel systems. They are generally linked to the solar PV component rather than acting as a standard rebate for an existing standalone battery installation.
However, where a battery is installed with new or existing solar, separate federal battery support may apply under the Cheaper Home Batteries Program, subject to program rules.
Feed-in tariffs in WA
WA’s Distributed Energy Buyback Scheme applies to eligible exported solar and battery energy. For Perth households, the key point is that the export rate is generally much lower than the price paid for grid electricity. This is why battery storage can be useful: it helps you use more of your own solar rather than exporting it for a smaller credit.
For more information on WA solar rebates and incentives, visit our WA Solar Rebates page.
Why Choose Aus Energy Solar for Battery Installation in Perth?
Custom recommendations
We do not recommend batteries based on guesswork. We assess your solar system size, electricity usage, tariff, roof generation, future energy needs and budget before recommending a suitable battery option.
For Perth homes, this is especially important because the best outcome often depends on how much solar you generate during the day and how much power you use after sunset.
Technical compatibility checks
Not every existing solar system is battery-ready. Before installation, we check your inverter, switchboard, solar capacity, available space, backup requirements and connection requirements.
This helps ensure the battery is compatible with your home and suitable for how you want to use it.
Clear, honest guidance
A solar battery is a significant investment. We give practical advice on whether battery storage is likely to suit your home, rather than pushing a system that may not deliver the right value.
If a battery is not the best next step, we will explain why. If it is suitable, we will help you understand the expected benefits, limitations and setup requirements.
Professional installation and support
Our team handles battery installation with a focus on safety, compliance and long-term performance. We also explain how your system works, how to monitor it, and what to expect from day-to-day operation.
For a simple breakdown of how batteries store and release solar energy, read our guide on how solar powered batteries work.
Solar Battery Installation Perth FAQs
Can I Add a Solar Battery to My Existing Solar System?
In many cases, yes. A solar battery can often be added to an existing solar system, but the installation method depends on your inverter, system size, switchboard and available solar generation.
Some homes may be suitable for an AC-coupled battery, while others may benefit from a hybrid inverter upgrade. We assess your current setup before recommending the most practical option.
For a more detailed overview, read our Solar Battery Power Guide.
Do Solar Batteries Work During Blackouts?
Only if the battery system is designed and configured for backup power. A standard battery installation may not automatically keep your home running during an outage.
If blackout protection is important, we can design the system to support selected essential circuits. This may include your fridge, lighting, internet, garage door or other priority appliances.
How Long Do Solar Batteries Last?
Most quality home solar batteries are designed to last around 10 to 15 years, depending on the brand, usage, installation quality, temperature conditions and warranty terms.
Battery performance slowly reduces over time, so it is important to choose a product with a strong warranty and have it installed correctly.
How Long Does Installation Take?
Most residential solar battery installations can be completed in one day, depending on the complexity of the system. More involved installations may take longer if switchboard upgrades, inverter changes or backup circuits are required.
Before installation, we confirm the system design, compatibility, rebate requirements and any grid connection considerations.
Is a Solar Battery Worth It for Perth Homes?
A solar battery can be worthwhile in Perth if your home exports a lot of solar during the day and uses more electricity in the evening. This is common for households with working families, high air conditioning use, pool pumps, EV charging, or low daytime occupancy.
However, not every home benefits equally. Battery value depends on your solar generation, energy usage timing, tariff, feed-in rate and battery size.
Contact Us
Please fill out our online form to get a quick quote for your solar battery. We will get back to you as soon as possible. You can also call us to speak with a solar power specialist who can provide you with assistance and a quote for a solar system custom-designed for your needs.