Size matters!
Our all-in-one 15 kWh battery system is already larger than most systems on the market. For many households, it’s more than enough to cover everyday use — especially for those who already make smart use of night-time electricity rates.
That means running things like washing machines, dishwashers, or charging devices overnight, then using the stored energy through the day for other tasks. It’s not just about how much energy fits in a battery — it’s about using electricity at the right time.
For most homes, this strikes the right balance between capacity, cost, and day-to-day practicality.
And if you need more, it’s simple
Some homes will need extra capacity — larger households, higher usage, or simply wanting more flexibility. We’ve designed for that too.
If you’ve ever used a battery-powered drill or sander, you already understand how this works.
Additional battery modules simply slot into place.
- No rewiring.
- No system redesign.
- No complexity.
You can add up to three extra battery modules, taking total capacity up to huge 30 kWh — enough foralmost any situation.
Why timing matters
Where possible, we recommend adding any additional battery modules within the first three months. This helps keep the cells working together evenly over time, supporting long-term efficiency and battery health.
It’s not essential — but it’s sensible, and it’s why we explain it upfront.
The barrel & the hose
Think of a home battery system like a water barrel and a hose.
- The battery is the barrel — it sets how much water (electricity) you can store - i.e. a lot or a little.
- The inverter is the hose — its size sets how fast the barrel can be filled. A small hose will obviously take an eternity to fill a large barrel!
So, they must be sized together.
- Small barrel → runs dry by mid-afternoon
- Small hose → didn't completely fill the barrel overnight
In a nutshell, you either run out, or you never filled it up in the first place! The right system:
- Fills the barrel completely overnight
- Holds enough to last the entire day
- Keeps you off expensive peak electricity completely
Buy too small — barrel or hose — and by afternoon you’re back paying peak rates, usually 4 times the cost of off-peak.
The good news we've done this for you!
