What is a home battery storage system?

A home battery storage system stores excess electricity generated by your solar panels during the day so you can use it at night or during peak times, reducing your reliance on the grid and lowering your energy bills.

What size battery should I get?

Popular battery sizes for Australian homes are around 10 to 15 kWh. The most suitable size depends on your energy goals, daily electricity consumption, solar system size and whether you want backup power during blackouts. Our team can assess your needs and recommend the right size.

What is the life expectancy of a battery?

Most solar batteries are warranted for at least 10 years and have expected lifespans of around 15-20 years or more. Factors that influence battery life include:

• The type of solar battery: its composition and materials
• Usage: how many cycles your battery goes through daily or weekly, and how deep those cycles are
• Temperature and installation environment
• Regular maintenance and following manufacturer’s recommendations

Taking good care of your battery and choosing a premium product with a reliable provider can help ensure it remains healthy and efficient, optimising life expectancy and increasing return on your investment.

Can I add a battery to my existing solar system?

Yes. Adding a battery to your existing solar system is a fantastic way to add more value to your home energy solution. Having a battery makes your home more self-reliant while optimising the benefits of solar energy production. Here’s how to get started:

• Review your current solar energy production: are you producing more than you consume?
• Review your current electricity consumption: do you use power during the day or at night?
• Speak to a MAC Trade Services consultant to understand which storage options would integrate into your current system and whether you need additional solar panels installed to make this work.
• Let your MAC Trade Services consultant show you the payback period you could achieve and the expected savings to your energy costs over the years to come.

What happens during a blackout?

If you have a battery connected to your solar system and it is configured for backup power, you may be able to have some electricity during a blackout. However, the exact amount of energy you will have, what you can power and for how long will vary from system to system and depend on your battery’s charge level at the time of the blackout.

What are the benefits of installing a battery?

Key benefits include:

• Increased solar self-consumption (use more of the energy you produce)
• Reduced electricity bills by using stored energy during peak pricing periods
• Backup power supply during blackouts (if configured)
• Energy independence and reduced reliance on the grid
• Access to rebates and incentives
• Potential participation in Virtual Power Plant (VPP) programs for additional income

Do I need solar panels to install a battery?

Not always.

If you’re applying for a battery rebate under the Australian Government’s Cheaper Home Batteries Program, you’ll usually need to have solar panels installed at your property.

This is because the rebate is designed to support batteries that store energy generated from solar.

However, you don’t need solar panels to install a battery.

If you choose not to access the rebate, you can still install a battery on its own. In this case, the battery can:

• charge from the grid when electricity is cheaper (off-peak times), and
• power your home when electricity costs more (peak times).

If you’re unsure which option is right for you, we can help explain the differences and what to consider before you decide.

How much does a battery cost?

Battery costs vary depending on size, brand, features, and installation requirements. With rebates such as the Australian Government’s Cheaper Home Batteries Program, the upfront cost can be significantly reduced. Contact MAC Trade Services for a detailed quote tailored to your situation.

Can I choose the battery brand and model?

Yes, you can choose your preferred brand and model as long as it appears on the approved product list and complies with all technical standards. If one supplier doesn’t stock your preferred battery, you can work with another approved supplier who does.

Is it safe to install a battery in my home?

Yes, when installed correctly by licensed professionals following Australian standards and regulations, home batteries are very safe. The risk of fire or malfunction is very low when proper installation, maintenance and monitoring procedures are followed. MAC Trade Services uses approved batteries and qualified installers to ensure safety.

Where should the battery be installed?

Batteries should be installed in a well-ventilated area, protected from extreme temperatures and direct weather exposure. Common locations include garages, utility rooms or external mounting on walls under shelter. Our installer will assess your property and recommend the best location during the site visit.

Will I need to upgrade my inverter?

It depends on your existing solar system. Some batteries are compatible with your current inverter (AC-coupled batteries), while others require a hybrid inverter or a separate battery inverter (DC-coupled). Our team will assess your system and advise on any necessary upgrades.

Can I monitor my battery’s performance?

Yes. Most modern battery systems come with monitoring apps that allow you to track your battery’s charge level, energy production, consumption and performance in real-time from your smartphone or computer.

What maintenance does a battery require?

Home batteries generally require minimal maintenance. Most systems are designed to be largely maintenance-free. However, it’s recommended to have periodic professional checks and to keep the battery area clean and well-ventilated. Follow the manufacturer’s guidelines for specific maintenance recommendations.

How long does battery installation take?

Most battery installations can be completed in one day. However, more complex installations or those requiring electrical upgrades may take longer. Our team will provide a timeframe when scheduling your installation.

What is the warranty on batteries?

Most batteries come with a manufacturer’s warranty of at least 10 years, covering defects and performance degradation. The specific warranty terms vary by brand and model. Our team will provide full warranty details when discussing your options.

What safety considerations should I prioritise when installing a home solar battery?

Key safety considerations include:

• Complying with all relevant Australian standards and regulations
• Ensuring the system is correctly designed for the site
• Providing suitable ventilation and placement to prevent overheating
• Using professional, licensed installers who follow best practices and are listed on the Clean Energy Council installer register
• Regular monitoring and maintenance

Working with an approved supplier like MAC Trade Services helps ensure these safety requirements are met throughout design, installation, and operation.

Does the installation cost include the battery itself?

Often, installers provide quotes that separate the battery hardware cost from the installation cost. Some may offer a combined price. MAC Trade Services will provide clear written quotes that show what is included and excluded so you understand the full scope before paying a deposit or invoice.

What battery incentive programs are available in South Australia?

There are two main ways South Australian households and businesses can access battery related rebates or savings.

Australian Government battery rebate

Households and businesses may be able to access an upfront battery rebate through the Cheaper Home Batteries Program. This rebate is linked to installing a battery (usually alongside solar panels if you don’t have them already) and helps reduce the upfront cost.

REPS Virtual Power Plant (VPP) rebate

You may also be able to get a rebate through REPS by connecting your battery to a Virtual Power Plant. This involves allowing your battery to share energy with the grid at certain times, which helps support the electricity system and can provide additional savings.

Who receives the incentive money?

You do, the difference is how it’s applied.

Some rebates are given to you as an upfront discount, while others are provided as a cash rebate or credit after you apply.

For battery installation rebates (such as the Australian Government’s Cheaper Home Batteries Program), the incentive is usually applied upfront to the quote.

For the REPS Virtual Power Plant (VPP) rebate, the incentive is paid to you as cash rebate after your online application has been approved.

In all cases, the value of the incentive goes to you. We’ll always explain how it works and when you’ll receive it before you go ahead, so there are no surprises.

What are the requirements to qualify for the Cheaper Home Batteries Program?

To qualify for a battery discount under the Cheaper Home Batteries Program, you’ll generally need to meet the following requirements:

• You must be installing a new, eligible battery system at your home
• The battery must be on the approved product list
• The battery must be installed by a qualified installer
• You’ll need to have solar panels installed at the property
• The installation must meet Australian standards and safety requirements

The discount is designed to support safe, high-quality battery installations that help households store energy and support the grid.

If you’re not sure whether your home, battery, or setup qualifies, we can help check this for you and explain your options before you decide.

Can I receive the Cheaper Home Batteries discount for a battery that is already installed?

No, the Cheaper Home Batteries discount is only for new battery installations completed after the program started.

However, this doesn’t mean your existing battery can’t receive a rebate.

If your battery is already installed, you may still be able to get a separate rebate for joining a Virtual Power Plant (VPP). The battery installation rebate and the VPP rebate are two different programs, with different rules.

If you’re unsure which one applies to your battery, we can help check and explain your options.

Can I receive the Cheaper Home Batteries discount if I am off-grid?

No. The scheme is designed to reduce demand on the electricity grid, so batteries that are completely off-grid are not eligible for these incentives.

How much discount can I receive for a battery installation?

The discount amount depends on the battery size but generally will work out to be around 30% for a range of batteries across battery sizes.

Contact MAC Trade Services for specific details based on your circumstances.

What is the application process for battery incentives?

Contact MAC Trade Services to express interest. Our team will:

1. Assess your eligibility
2. Conduct a site assessment
3. Provide a quote with the upfront discount applied
4. Handle all paperwork and applications on your behalf
5. Schedule and complete the installation
6. Submit documentation to claim the discount on your behalf

Can I access the Cheaper Home Batteries discount more than once?

The Cheaper Home Batteries discount is only available once per property.

This means the discount can only be used:

• the first time a battery is installed at a property, or
• when a battery system is added to or replaced for the first time.

After that, the discount can’t be claimed again at the same address.