Is a battery worth it for your home?
Often, yes. A battery stores the solar you make during the day so you can use it in the evening, when power costs the most. It can keep essential circuits running in a blackout, and it helps with time-of-use tariffs. But it does not suit every home. If you are home all day and already use most of your solar, or your system is small, the numbers may not add up yet. We will say so. Our honest list of battery pros and cons goes through it.
- Since 2009Installing from our Arundel base
- 6,000+Systems installed across South East Queensland
- 500+Batteries installed
- 4.9 ★From 119 Google reviews
The battery rebate
How it works
The federal battery rebate is applied on your quote. It steps down every six months, and the date that counts is the install date, not the date you sign.
What changes on 1 January
From 1 January 2027 the rebate is lower: around $600 to $700 less rebate on a typical 16 to 20 kWh battery from 1 January, based on current certificate prices. See the battery rebate page.
Rebate eligibility is decided by the government, not by us. We lodge the paperwork for you.
Sized from your evenings, not the biggest rebate
A typical home battery we install is 16 to 20 kWh, but the right size for you depends on what you run after dark, whether you want backup, and how big your solar system is. Bigger is not always better. We size it to your usage and tell you if a smaller battery, or waiting, makes more sense.
How we install a battery
Every battery follows the Australian battery standard, AS/NZS 5139. It goes in the right place, usually the garage or a sheltered outside wall, away from bedrooms, living areas and exits. Every circuit on backup gets its own safety switch, cables are protected, the required labels go on, and we test the backup with the grid off before we leave. The full step-by-step is on how we install a home battery.
Adding a battery to existing solar
Many of our battery jobs are on homes that already have panels. Whether your current inverter can work with a battery, or needs replacing, depends on the system. We check it on the site visit and explain the options before you get a quote.
Backup in a storm
Solar panels alone switch off when the grid goes down. A battery set up for backup can keep chosen circuits running. Whole-home and essential-circuit backup are different things, and we explain which suits you. More in what happens to your solar in a blackout.
Buying direct from the installer
Many national retailers sell the job and hand it to an installer you have never met. When you buy direct from Green Coast, it works like this.
| Many national retailers | Buying direct from Green Coast | |
|---|---|---|
| Who gives you the quote | A salesperson | Ashley or one of our tradesmen |
| Who installs it | A subcontractor, often chosen after you sign | Our own staff, on every job |
| Who you call if something goes wrong | A call centre | The Arundel office that did the job |
| Workmanship warranty | Depends on the contract | 10 years, in writing |
How it works
- A free phone or video chatAbout your home, your power bills, when you use power, and what you want: lower bills, backup, an EV, or all three. No pressure, no obligation.
- An on-site assessment and designIf it is a fit, one of our tradesmen checks the roof, shading and switchboard, then we design the system around how your household uses power.
- A written quoteEvery price comes in writing, after the site visit. Rebates are shown as a discount on the quote. Quotes are valid for 30 days.
- The install, by our own teamNo subcontractors. We handle the paperwork, grid connection and rebate lodgement, then stay on call for support.
Questions we get asked
How much does a home battery cost on the Gold Coast?
It depends on the size, your existing system and your switchboard, so we do not publish prices. You get a written quote after a free consultation and a site visit, with the rebate shown.
What size battery do I need?
A typical battery we install is 16 to 20 kWh, but we size it from what your home uses in the evening and whether you want backup.
Can you add a battery to my existing solar?
Often, yes. It depends on your current inverter and switchboard, which we check on the site visit.
Will a battery keep my power on in a blackout?
Only if it is set up for backup. We explain the difference between whole-home and essential-circuit backup before you decide.
Who installs the battery?
Our own staff. Every battery install is done or supervised by a battery-accredited installer.