Home Battery Storage & Retrofit. Brisbane, Gold Coast & SEQ

Add storage to new or existing solar. Fixed price tiers, in-house licensed team, rebate applied upfront.

Add a battery to new or existing solar

Already have solar? A battery can turn low-value daytime exports into evening energy you use yourself. Energy Gate adds battery storage to existing solar systems across Brisbane and SEQ, or designs solar and battery together for new installs. The first step is not choosing a battery brand — it’s checking your existing inverter, export profile, switchboard, energy usage and backup goals so the retrofit is safe, compatible and worth doing.

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Battery Installation

Is a battery retrofit right for you?

The clearest sign a battery is worth it is a meaningful daily solar export on your bill — that surplus is what a battery captures instead of selling cheaply. We size it to your real evening and overnight usage.

Meaningful daily solar export on your bill?

High evening or overnight usage?

Already have solar, or starting fresh?

Want blackout backup for essentials?

Existing inverter can’t add storage on its own?

If your solar is small and you export very little, extra panels may be a better first step than a battery

Get a Free Quote

Safe chemistry, built-in monitoring

Every battery we install uses lithium iron phosphate (LFP) chemistry — far more thermally stable than older lithium types, with no cobalt and a long cycle life. Each has a battery management system constantly monitoring temperature, voltage and charge.

Extra fire-safety features

Several batteries we install add further fire-safety features — the FoxESS CQ7, for example, includes built-in aerosol fire suppression and an IP65 enclosure. Installed correctly to the standards, with compliant placement, clearances and isolation, a quality home battery is a safe addition to your home.

Battery Storage Packages

FoxESS, Sigenergy, Sungrow, AlphaESS & GoodWe LFP batteries — federal rebate applied upfront.

0kWh

AC-coupled retrofit

0kWh

Hybrid upgrade

0kWh+

Modular, with backup

Battery retrofit options

AC-coupled battery

Your existing solar inverter is healthy and worth keeping

Simple retrofit, but adds another inverter and may be less integrated

Hybrid inverter upgrade

Your existing inverter is old, limited or you want a cleaner battery-ready platform

More work upfront, but often better for backup and long-term expansion

Solar plus battery upgrade

Your existing solar is undersized for a battery

Adds generation so the battery can reliably charge

Why homeowners choose a home battery



Use your own solar

Store daytime solar for the evening peak

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Retrofit-friendly

AC-coupled or hybrid upgrade, whichever suits



Real blackout backup

Backup gateway runs your essentials



Modular & expandable

Add capacity later as needs grow

Already have solar? Check your eligibility

We inspect your inverter, switchboard and export profile before recommending anything.

Get a Free Quote

Call now 0426 091 992

Where your battery goes isn’t an afterthought

Battery location is governed by standards and common sense. Heat and poor airflow shorten battery life, so we look for a cool, shaded, ventilated spot — not just wherever’s convenient. Backup is optional, not automatic, and always quoted separately.

Cool, shaded, ventilated location — never a hot west-facing wall

Compliant clearances, access and signage to AS/NZS 5139

Kept clear of habitable rooms and exit paths

Space left for future expansion

Backup quoted separately and clearly — you know what’s included

We register your manufacturer warranty on install, so cover is valid from day one

Get a Free Quote

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Built to standard, accredited to install it

Built to Australian standards

A home battery must be installed by a licensed electrician to AS/NZS 5139, alongside the wiring rules (AS/NZS 3000) and the inverter standard (AS/NZS 4777). The standard sets practical safety rules: batteries must not go inside bedrooms or other habitable rooms, must keep clear of windows, exits and certain appliances, and need proper ventilation, clearances and signage. We install to it as a matter of course, so the installation is genuinely safe for the long haul.

Battery range comparison

FoxESS CQ7 / CQ6

13.9–97.4 kWh, 100% DoD, 10–12-yr warranty

Battery warranty + SDS

Sigenergy SigenStor

5–48 kWh, 5-in-1 design, 10-yr warranty

Battery warranty + SDS

Sungrow SBR / SBH

SBR to ~25.6 kWh; SBH larger, ~10-yr warranty

Battery warranty + SDS

AlphaESS & GoodWe

Modular LFP storage, ~10-yr warranty, strong value

Battery warranty + SDS

Your battery retrofit process

What local customers say

      
   ENERGY GATE PTY LTD
   142 Google reviews 
  Write a review 
  
 
 
   
 
 
       Posted on Google  
   
   Jan Alvaro 
 
 
 
  Great workmanship. Fred and his team takes pride in their work. Their communication is top notch and answered all queries I had. They even patched the old holes from the previous inverter. Its the little details that wont go unnoticed
  
 
      Posted on Google  
   
   Ramin Khajavi 
 
 
 
  I looked into the market to find a good battery system and more importantly a great installer to give me a peace of mind for this investment. After some time, i came across Energy gate and upon my conversations with them to find the most suitable system for my needs, their expertise and experience became clear to me and that was paramount to me and then signed the contract with them. The system was installed beautifully and neatly. Running perfectly since then. Fred is great to deal with, don’t go past EnergyGate.
  
 
      Posted on Google  
   
   Yaqoob Zia 
 
 
 
  Very happy to have Goodwe solar battery from Energy gate. Fred the sales consultant who also installed the battery is very decent man. very helpful and accommodative. I will give five stars to Energy Gate and Fred.
  
 
      Posted on Google  
   
   Seongmoon Choi 
 
 
 
  These guys are a truly excellent team. After requesting a solar battery, I was fortunate enough to have the installation completed within just two weeks. Once the battery was installed, Fred provided thorough care, offering detailed explanations about the product and important points to keep in mind. I discovered them through great reviews on Facebook, and I am extremely satisfied. I am currently considering a solar installation for my commercial shop as well, and if I go ahead with it, I would definitely like to get a quote from Fred again. Thank you!
  
 
      Posted on Google  
   
   Bronnie Dixon 
 
 
 
  We couldn't be happier with the installation of our battery and solar panels. The team was professional, friendly, and completed the job to a very high standard. Everything was explained clearly, the installation was neat and efficient, and the system has been performing brilliantly. I highly recommend Energy Gate to anyone looking for quality workmanship and excellent customer service.
  
 
      Posted on Google  
   
   Rich Fuss 
 
 
 
  I contacted Fred earlier on in my battery hunting process and he was prompt and fair with his quoting and didn’t push when we weren’t ready. When we finally were, he was able to do a very quick turnaround from deposit to install and had same day commissioning. Quality install at a great price. Exactly what we wanted
  
 
      Posted on Google  
   
   Behzad Ranjbarnia 
 
 
 
  I had a perfect experience with this company. Compare to the other quotes I had, the facilities and services prices were way affordable. Absolutely recommending for those who wish to get reliable, affordable, and qualified services. Good job guys👌
  
 
      Posted on Google  
   
   Roger Huang 
 
 
 
  Energy gate did a solar and battery system for us two years ago and we have been very happy so far with the set up. System we got was 8kw jinko solar and 30kw AlphaESS battery Always worked and never had issues with it .
  
 
      Posted on Google  
   
   Jutta S 
 
 
 
  I found Energy Gate's advertisement for Goodwe battery installs whilst scrolling Facebook Marketplace and decided to contact them for a quote. Fred, the business owner, was prompt to reply and gave good advice and a very competitive price for a premium Goodwe 15kw inverter and 16.6kw battery stack. I was initially hesitant, but after checking the company out online and finding only glowing  reviews I decided to give them a go. Fred, the owner of this local business, is a qualified solar installer and electrical engineer. Instead of dealing with a sales person from a large business, I could directly address all my concerns with the actual installer who also supplies backup service if necessary. I can honestly say that Fred explained everything patiently in easy to understand language and set the system up perfectly. It looks good and works well. I thorouly recommend this company for professional work and service, not to mention the great price. They truly deserve 5 stars!
  
 
      Posted on Google  
   
   Haris Zia 
 
 
 
  I had a great experience with Fred and his team. They installed a battery and solar system and did an amazing job. The install was very clean and they left my place like they hadn’t been there. It’s also great to engage directly with Fred and not have to go through salespeople who usually try to upsell. I thoroughly recommend Energy Gate to everyone. Give Fred a call!
  
 
  
  
 
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Frequently Asked questions

Your questions, answered

What is the payback time on a retrofit battery?

It depends on your usage, how much solar you currently export for small credits, your tariff, and the rebate at the time. A battery makes the strongest sense for households with high evening usage and plenty of daytime surplus. We give realistic, conservative numbers for your circumstances and will tell you honestly if it is not yet worthwhile.

Do I qualify for the battery rebate if I already have solar?

Yes. Having existing solar does not disqualify you. The rebate is about the battery being an approved product installed by an accredited installer to standard, with one rebate per eligible address under current rules. We confirm your eligibility as part of the quote.

What does adding backup involve, and does it cost extra?

Backup means adding a gateway or backup sub-board and wiring it to the circuits you want kept on, which is extra hardware and labour over a standard battery install. It is worth it if you experience outages or simply want the peace of mind. We quote it as a clear option so you can decide.

Will my switchboard need upgrading to add a battery?

Sometimes. A modern board with spare capacity and proper safety switches may simply take the new protected circuits. An older or full board often needs an upgrade to add a battery, and especially backup, safely and compliantly. We check your switchboard as part of the quote and tell you honestly, never an upgrade you do not need and never skipping one the rules require.

How do I know if I have enough surplus solar to justify a battery?

The clearest sign is a meaningful daily export figure on your bill or in your monitoring. That surplus is what a battery stores instead of selling it cheaply. If you export very little because your solar is small or already self-consumed, we may suggest adding panels alongside the battery. We assess your actual data rather than guess.

Will my current inverter work with a new battery, or do I need to replace it?

Sometimes your existing inverter can stay and we add a battery beside it. Other times, especially with older or basic inverters, switching to a hybrid makes more sense. The deciding factors are its age, type and capacity. We assess it honestly and tell you whether keeping or replacing it is the smarter spend, rather than bolting a new battery onto tired equipment.

Can I add a battery to my existing solar system?

In most cases, yes. There are two common routes: add a separate battery with its own inverter alongside your existing solar, or replace your current inverter with a hybrid one that runs both panels and battery. Which suits you depends on the age and type of what you already have. We inspect it and recommend the option that genuinely fits.

Get your fixed-price battery storage quote

Get a Free Quote

Call now 0426 091 992

Home Battery Storage & Retrofit. Brisbane, Gold Coast & SEQ

Add a battery to new or existing solar

Battery Installation

Is a battery retrofit right for you?

Meaningful daily solar export on your bill?

High evening or overnight usage?

Already have solar, or starting fresh?

Want blackout backup for essentials?

Existing inverter can’t add storage on its own?

Safe chemistry, built-in monitoring

Extra fire-safety features

Battery Storage Packages

Battery retrofit options

AC-coupled battery

Hybrid inverter upgrade

Solar plus battery upgrade

Why homeowners choose a home battery

Use your own solar

Retrofit-friendly

Real blackout backup

Modular & expandable

Already have solar? Check your eligibility

Where your battery goes isn’t an afterthought

Cool, shaded, ventilated location — never a hot west-facing wall

Compliant clearances, access and signage to AS/NZS 5139

Kept clear of habitable rooms and exit paths

Space left for future expansion

Backup quoted separately and clearly — you know what’s included

We register your manufacturer warranty on install, so cover is valid from day one

Built to standard, accredited to install it

Built to Australian standards

Battery range comparison

FoxESS CQ7 / CQ6

Sigenergy SigenStor

Sungrow SBR / SBH

AlphaESS & GoodWe

Your battery retrofit process

Get in touch

Inspect existing solar

Install to standard

Register & handover

What local customers say

Frequently Asked questions

Your questions, answered

Get your fixed-price battery storage quote

0426 091 992

fred@energygate.com.au

Monday to Friday, 7:00am – 5:00pm; Saturday by appointment

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