Solar + battery systems in Pakenham & Cardinia.
One combined design that fills the battery by mid-afternoon and carries the evening peak — maximising self-consumption and stacking the Cheaper Home Batteries rebate with Solar Victoria and federal STCs. The best-value way to cut a $400-plus quarterly bill.
Why a combined system beats buying separately.
One hybrid inverter, one install, one application.
Buying solar now and a battery in three years means paying for a string inverter you later rip out, a second install visit, a second set of switchgear and a second United Energy application. A combined solar + battery system uses a single hybrid inverter from day one, so adding battery capacity later is a clip-in upgrade. It also locks in the 2026 Cheaper Home Batteries rebate at its highest while it tapers in later years.
Sized so the array fills the battery.
The art is balance. Too small an array and the battery never fully charges on a cloudy Cardinia winter day; too small a battery and you’re back to exporting cheap surplus. We size the panels and the battery together against your real load curve — the corridor’s large north-facing estate roofs in Cardinia Lakes, Officer and Heritage Springs make a generous 10–13kW array easy, which comfortably fills a 10–13.5kWh battery to carry the evening.
Every rebate, stacked.
- Solar STCs — applied to the panels as an upfront discount
- Cheaper Home Batteries Program — around $252 per usable kWh in 2026 on the battery
- Solar Victoria — rebate and interest-free loan eligibility checked for your address
A worked Pakenham example.
A Cardinia Lakes family installs a 10kW array plus a 10kWh battery. List price is about $24,000; the battery rebate takes roughly $2,500 off and STCs take several thousand off the solar, so the net lands around $17,000–$19,000. On their $420 quarterly bill the system pays back in roughly 6–8 years — and they get blackout backup on top.
Compliance we handle.
- CEC-accredited install to AS/NZS 5033, AS/NZS 4777 and AS/NZS 5139
- AS/NZS 3000 (Wiring Rules) and a Certificate of Electrical Safety
- United Energy (DNSP) pre-approval, export design and connection paperwork
Build it your way.
Want just the panels first? See solar panel installation. Already have solar and only need storage? See battery storage. Driving electric? Add an EV charger wired into the same system so you charge on free daytime sun.
Where we work.
Free solar + battery system quote.
We size panels and battery together, stack every rebate, and show you the net.