Expand Your Battery Capacity

 

More storage.
More savings.
More energy independence.

 

See how much you could save with Plico. 

Request an obligation-free chat with our friendly team to see how much you'll save when you super-size your battery setup!

Your solar and battery system has been working hard to power your home with clean, affordable energy. But as your household grows and energy use changes, you may find you need more battery storage to keep up. Whether you want to store more of your solar power, stay powered for longer overnight, or take advantage of battery rebates while they're available, expanding your battery capacity can help you get even more from your energy system.

Plus, when we expand your battery setup, we'll also ask if you want to join the Plico Virtual Power Plant (VPP) and earn rewards for your battery energy. As the only independent VPP approved for the WA Battery Rebate, we can help you access even more savings on your battery expansion. 

With generous battery rebates available, now is the perfect time to increase your battery storage and future-proof your home. 

 
Plico member with Alpha ESS battery

What are my battery expansion options?


We work with Alpha ESS, Fox ESS and Sigenergy battery and inverter systems. If you're looking to upgrade one of these systems at your home, we can help. 

Most battery expansion projects are straightforward, however there can be some limitations that will be explored during our technical review of your system. These include: 

  • the space in your existing battery cabinet and the availability of additional components.
  • the available space around your existing battery — this may determine how much extra storage your site can accommodate.
  • the availability of your existing battery modules — sometimes battery modules are discontinued and this limits the ability to expand the system. 
  • the age of your battery, inverter and solar system — Whole of Site Compliance regulations apply in WA which may require further upgrades to your system.  

You don't need to be across all of the technical ins and outs — we'll review your site and your system before providing a no-obligation quote, so you'll have all the information you need to make a decision. 

Plico Virtual Power Plant (VPP)

The Plico Virtual Power Plant is the longest-running VPP in WA with almost 6,000 members and growing rapidly. We're the most experienced VPP in the state and have been successfully providing reliable services and support to our members and the grid for over four years.

Our community of solar + battery systems is like one mini power plant, providing essential services to the grid when required. And our members are loving the financial rewards they get for being involved.   

And the great news is, you can Bring Your Own Battery (BYOB) to the Plico VPP and access the same great rewards.       

Here’s a rundown of what’s included: 

  • Three times your energy cost (min 99c/kWh) for the energy sent from your battery to the grid during a VPP event.
  • No sign up or ongoing fees. 
  • Get more out of your battery investment without having to lift a finger.
  • Prevent blackouts for everyone and support a cleaner, more reliable grid. 
Plico_VPP-Diagram

What is a Virtual Power Plant (VPP)?


A Virtual Power Plant (VPP) is a network of household solar + battery and battery only systems, that is managed remotely to generate, store and transfer energy to and from the grid. VPPs can increase or decrease energy supply to the grid  almost instantly, providing a flexible, cost-effective and clean energy solution, helping to build a more reliable energy system for the future.    

Check out our ABCs of the VPP guide, blog about VPPs and learn how we’re working together with Synergy  to support the grid.   

Solutions to suit every home.

Elevate your lifestyle with a Plico clean energy system.

I'M LOOKING FOR FOR A PAYING

The indicative prices below are not a quote or offer. Final pricing will include additional custom installation costs. Weekly payments are based on interest-free loan available (eligible households only) or Plico Finance. 

Prices based on WA

Prices based on NSW/ACT

Weekly pricing is with no-interest loan, available to eligible households only. Paid monthly. Where system price exceeds loan value available, Plico Finance weekly price is included. All weekly pricing is based on 10-year term. *T&Cs, lending criteria and loan eligibility applies.
 
All Plico systems are customised to suit your home and energy needs, so actual pricing may vary. Your final quote will include installation costs specific to your system and site.
Pricing includes relevant solar and battery rebates and Plico’s exclusive $1,500 VPP Discount and is based on standard installation. 
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Unlock your battery rebates without the solar battery experts, Plico.
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We offer real value with every system installed.
Plico Other providers
VPP Rewards
Earn money for your energy!
Blackout protection
Include with every Plico Energy Saver system
Optional extra
Ongoing support
Local support for peace of mind
Some providers
Warranty
10-year battery warranty as standard
Hardship Support
A dedicated fund for Plico members who fall on hard times.
Plico Future Fund
A dedicated fund that supports the wider community.
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Join thousands of West Aussies saving with battery rebates.

There's never been a better time to upgrade your solar battery with more storage. Homes across WA are making the most of once-in-a lifetime battery rebates and saving thousands.

As an approved installer, we'll handle all the applications and ensure you get your maximum rebate. 

Whether you're an existing Plico Member or had your battery installed by another provider, we can help you future-proof your home energy needs with a battery expansion. 

Get a Quote
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Case Studies.

  • Plico Testimonial2
    $5200
    "Since we've installed Plico, so far we've saved thousands of dollars. When we first started, we had $1200 a bill and now, like I say, we're in credit now which is great. We've got four boys, so the dishwasher is always on, the washing machine is always on."
    Saved annually
    Grant & Rhani's story
    Watch on youtube
    $5200 Saved annually
    "Since we've installed Plico, so far we've saved thousands of dollars. When we first started, we had $1200 a bill and now, like I say, we're in credit now which is great. We've got four boys, so the dishwasher is always on, the washing machine is always on."
    Grant & Rhani's story
    Watch on youtube
Plico Member charging an EV

"Good service, great price, extremely professional install. Very neat and tidy and the products deliver as promised."

 

Leith, Greenfields WA

19 March 2026

Plico member with dog and phone

"Great service and everything went well. Couldn't be happier."

 

Terry, Jindalee WA

15 March 2026

Plico member in garden on sunny day

"Excellent value for money, super easy to enquire and arrange our whole install. Very happy!"

 

Jamie, Margaret River WA

6 April 2026

Plico installer sitting on roof

"Found both the sales/office staff as well as installers to be friendly and knowledgeable, as well as passionate about the industry." 

Ric, Butler WA

21 June 2026

Plico member with battery and cup of tea

"The VPP makes perfect sense to me. This is one of the major benefits of being a Plico member."

 

Chris, Hamilton Hill WA

2 April 2025

FAQs.
Plico Member on balcony

Get a quote today!

Find out your battery expansion options with battery experts, Plico. 

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FAQs: Your questions, answered.

Can you add a battery to an existing solar system?

You can add a battery to your existing solar system. If you find a compatible solar battery, it can be attached to your system and begin storing solar power. You must have a hybrid inverter (able to work with the panels and your new solar battery), or you will need a separate battery inverter. Note that due to new Whole of Site Compliance regulations in WA, Plico can only offer a hybrid inverter replacement battery system for eligible homes. 

You should avoid attempting to add a solar battery yourself. Solar systems contain delicate electrical circuits and are potentially dangerous. Leaving the installation process to qualified professionals ensures the battery is installed safely and effectively. 

For more details, have a look at our article about adding batteries to your solar system.

When to add a battery to your solar system
With the right installer, you can add a solar battery to your system anytime. However, common scenarios are if a battery needs to be replaced, a household wants to eliminate the risk of blackouts and load shedding, regularly charges an EV or wants to reduce energy bills. Homeowners who add a Plico battery also join our Virtual Power Plant and earn rewards for their energy, while contributing to a cleaner, more reliable grid and brighter energy future. 
What does it cost to add a solar battery to a solar system?

The cost of adding a solar battery to your solar system varies based on the battery’s brand, size, and installation costs, as well as what rebates may be available.

Larger batteries have a greater storage capacity. However, larger solar batteries require more materials. Unfortunately, more materials mean higher costs and a higher retail price.

Different brands of solar batteries have differing features and quality levels. Higher quality materials, historical performance, and consumer demand are factors that dictate price differentiations. For example, expect to pay more for a solar battery with a high-efficiency rating. It pays to learn the average cost of a solar battery to get an idea of the quality level you can afford. Fortunately, Plico’s innovative financial model means that you can have an industry-leading solar battery for one low weekly instalment and no big upfront costs.

Installation costs vary based on the installer. Factors such as the installer’s desired price point, the current demand, the number of batteries you need to be added, if you need a new inverter or battery housing, and how far your household is from the installer’s location affect the installation cost. 

Once again, by becoming a Plico member, you can bypass the sting of these installation costs, as it’s included in your one low weekly instalment!*

How do I know if a retrofit solar battery is compatible with my system?
The best way to learn if a particular retrofit battery is compatible with your existing solar system is to chat with an industry professional. A reputable provider and installer will know how compatible their retrofit battery is with your particular system. Plico can add a hybrid inverter replacement battery system if your solar is less than three years old and your home is single storey. This is due to new Whole of Site Compliance regulations in WA. 

Plico stands by its systems for a minimum of 10 years, so you can be sure your battery (and inverter) will perform as it should.
Can I add more batteries to my solar system?
Yes, you can install additional batteries onto your solar system even if you already have a solar battery installed. Over time, you may have upgraded your solar system, increased your energy consumption or purchased an EV or pool, which means you want more energy storage capacity. You can accommodate this increase by installing an additional battery in your solar + battery system. Ideally, the additional battery you choose will be the same type as the battery you already have for the best compatibility. If you have ensured the battery is compatible, it is simple to expand the storage capacity of your solar system. 

Note that you may need additional battery housing infrastructure, depending on the battery upgrade. For this reason, modular batteries are a good way to future-proof your storage needs, as they fit neatly into the same battery housing.  
When to avoid retrofitting batteries onto a solar system
Batteries can be retrofitted onto an existing solar system, but there are some practices to avoid.

Firstly, consider the age of your solar system. Modern solar panels have an average lifespan of around 25 years. If the rest of your solar system is nearing the end of its warranty or performance life, upgrading your whole system makes more sense. You also need to consider the size of your solar system. Older systems are generally smaller in size and have limited capacity to charge a large solar battery. 

Secondly, don’t buy a battery that doesn’t fit your energy needs. The biggest battery is not always the best. It may not be necessary for your household and could result in storage capacity you never utilise (and higher costs). You also need to consider your system's ability, in terms of your solar panel capacity and inverter output, to charge a large battery. 

Thirdly, don’t stray from your budget. Everyone has a different financial situation, and your purchase should reflect yours. Decide what you can afford and shop with that number in mind. However, if you think your needs might change in the future then it’s a good idea to ask what the potential upgrade costs are. With Plico, you can pay your system off in easy weekly instalments.
How to size battery storage for solar

You must consider the relevant factors when determining the right size battery storage for your solar system. These include your electricity consumption, your roof’s size and position, your solar panel capacity, inverter output and your budget.

Check out Plico’s solar battery size guide for an in-depth look. 

When should I upgrade my solar battery?

You should upgrade a solar battery when its performance is no longer meeting your needs. There are a few situations where upgrading your solar battery makes sense.

Like all technology, solar batteries have lifespans and will decline in performance as they age. However, the better quality of your battery is, the slower this process will be and the longer it will last. Read our article on solar battery longevity for an in-depth look at how long solar batteries last.

Another reason to upgrade your solar battery is because of damage. A reputable provider will supply a warranty for your solar battery. Still, if yours is out of warranty or without a warranty, this is a great opportunity to upgrade your battery.

Plico provides ongoing support on all of its battery systems, so you have peace of mind that a Plico battery will work as intended by the manufacturer over your agreement period. Plico members can upgrade their battery at the end of their agreement period and continue enjoying 24/7 solar savings with a new battery!

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