We already had solar and wanted to add a battery without replacing the whole system. Sunny energy took the time to understand our power usage and clearly explained the difference between the 28kWh and 42kWh options. There was no pressure to choose the biggest system, and they were upfront about what was included and what still depended on the site. The advice felt practical and honest rather than like a sales pitch!
South East Queensland · Local Home Energy Team
The sun sets. Your power doesn’t.
Premium FoxESS home batteries — designed around how your family actually uses power, installed by our own accredited team, and supported for the life of the system.
Why a battery, why now
Solar was step one.
Storage is where the savings are.
Feed-in tariffs keep falling
Exporting your solar for a few cents, then buying it back at night for 30c+ is a bad trade. A battery keeps that value at home.
Evenings are the expensive hours
Cooking, aircon, EV charging — your biggest usage lands exactly when grid prices peak. Stored sunshine covers it.
Backup when the grid drops
Storm season blackouts don’t have to mean a dark house. Backup circuits keep the essentials running automatically.
Federal battery rebate — thousands off, while it lasts
The national Cheaper Home Batteries program discounts installed battery capacity now, with support stepping down over time. We handle the paperwork end to end.
Battery systems
Sized around your evenings,
not off a brochure.
Three proven FoxESS configurations cover most Queensland homes. Every quote starts from your actual usage and switchboard — not a one-size-fits-all package.
Balanced
28 kWh

For family homes running aircon every night — the sweet spot of price and independence.
- Hybrid inverter + stacked battery
- All-evening aircon without grid draw
- Whole-home backup options
EP11
30 / 40 kWh

A high-capacity promotion for homes wanting more stored power in a compact footprint.
- Two promotional capacity options
- Ideal for larger evening loads
- Blackout backup options
CQ7
42 kWh

For big three-phase homes, EV charging and near-total grid independence.
- Three-phase hybrid architecture
- Overnight EV charging on sunshine
- Expandable as your loads grow
Ordinary three-phase systems add $500. CQ7 and 15kW inverter options use a different surcharge. Prices include GST and standard installation after the federal battery rebate; backup, equipment changes and site work are confirmed in writing.
How it works
Your whole evening,
running on this afternoon’s sun.
Daytime
Sunshine fills the battery first
Your panels power the house and charge the battery before a single watt is exported for cents.
Evening peak
The battery takes over
From dinner to midnight — the most expensive grid hours — your home runs on stored sunshine.
Overnight & outages
The grid becomes the backup
Instead of your main supply, the grid is just insurance. In a blackout, backup circuits switch over automatically.
What we install
One ecosystem, engineered to work together.
We deliberately specialise in the FoxESS platform with JinkoSolar panels — one integrated system we know deeply, not a different brand on every van.



Partners & accreditations
Backed by the people who build with us.
Battery & storage brands we work with








Our work
Real installs. Real switchboards.
No stock photos.



★★★★★
“We already had solar and wanted to add a battery without replacing the whole system. The advice felt practical and honest rather than like a sales pitch.”
Gia Cuong Bui · Google review
More about our teamGoogle reviews
Trusted by Queensland homeowners.
Real feedback from people who have worked with the SUNNY Energy team on their solar and battery systems.
Good quality and stuff, The after-sales service is excellent and highly recommended.
I like their founder Richard and Tony,nice guy
Just had solar batteries install very happy with Sunny Energy and the installer. I would recommend them if your looking for a solar install.
Best solar provider ever
Adding a battery to our existing solar system sounded simple until we started comparing the options. I wasn't sure whether we needed a bigger unit or whether our current setup would work properly with it. Sunny energy asked about our actual usage, explained the differences and answered the same questions more than once without making us feel silly. We ended up with a setup that made sense for the house, rather than simply buying the biggest battery available. From the first chat to the day it was installed, we knew what was happening and who was responsible for each part. If you already have solar and aren't sure where to start, these guys are worth speaking to.
For trade & commercial
Builders, electricians and developers — partner with us.
Volume supply, certified installation crews and full grid-application handling for new builds and multi-site projects across South East Queensland.
Questions, answered straight
What Queensland homeowners ask us.
How much does a home battery cost in Queensland?
Our current homepage offers include 28kWh from $6,999, promotional EP11 options at $6,999 for 30kWh or $8,499 for 40kWh, and CQ7 systems from $8,999 — including GST and installation, after the federal battery rebate. Your exact price depends on your switchboard and inverter setup, confirmed in writing after the free assessment.
Do I qualify for the federal battery rebate?
Eligibility depends on the battery, its capacity, the solar connection and the accredited installation pathway. The federal program supports eligible 5–100kWh nominal systems, with certificates calculated on the first 50kWh of usable capacity. We confirm the current rules and your exact discount in writing.
Can I add a battery to my existing solar?
Yes — battery retrofits are most of what we do. We check your current inverter’s compatibility first; sometimes the smartest path is a hybrid inverter swap at the same time.
Will the battery run my house in a blackout?
With backup circuits configured, yes — essentials like the fridge, lights and Wi-Fi switch over automatically. Whole-home backup is available on larger systems.
Who actually does the installation?
Our own accredited installation team — not subcontractors we’ve never met. The people who quote your system are the same company that installs and supports it.
Free home assessment
Find out what a battery actually saves you.
Tell us where you are and how you use power. We’ll size a system around your real evenings and give you an installed price — no pressure, no spam.
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