Home battery storage
A battery in a solar energy system stores excess electricity from the panels for later use. Homeowners can then use their solar power when the sun isn’t shining, such as at night or on overcast days.
Batteries we install
Showing all 4
Powerwall 3
The battery and the solar inverter sit in one unit, which suits a new system or a system being rebuilt.
Expansion options available- Capacity
- 13.5 to 54 kWh
- What it is
- Battery with the solar inverter built in
- Build
- One unit, plus up to 3 Expansions
Full specification
SBR High Voltage Battery
Three to eight modules of 3.2kWh stack into one unit, and more modules can be added later.
- Capacity
- 9.6 to 25.6 kWh usable
- What it is
- DC battery, no inverter of its own
- Build
- 3 to 8 modules of 3.2 kWh
Full specification
SBH High Voltage Battery
Three to eight modules of 5.0 kWh stack into one unit, with up to 50 A of continuous charge and discharge current.
- Capacity
- 15.0 to 40.0 kWh usable
- What it is
- DC battery, no inverter of its own
- Build
- 3 to 8 modules of 5.0 kWh
Full specification
SigenStor
The solar inverter, battery, controller and optional EV DC charger stack into one tower.
- Capacity
- 5 to 48 kWh per stack
- What it is
- Inverter, battery and controller in one
- Build
- 1 to 6 batteries per controller
Full specification
No battery does all of those at once. Clear a filter, or ask us what fits.
How to choose
The battery itself is only half the system. The installation determines the result.
Do you already have solar?
Powerwall 3 and SigenStor carry their own solar inverter. The Sungrow SBR and SBH are DC batteries with no inverter of their own, so each works alongside a separate one.
Powerwall 3 and SigenStor suit a new system, or one where the inverter is being replaced at the same time. Whether a Sungrow SBR or SBH needs an inverter change depends on the inverter you already have.
How much do you need to store?
Three factors determine savings outcomes: daytime solar exports, evening and overnight electricity use, and the structure of your energy tariff.
We assess real bills and real data. We don’t estimate.
Single phase or three phase?
Powerwall 3 is single phase. SigenStor is published in single phase and three phase versions. The Sungrow SBR and SBH datasheets do not state a phase.
What has to stay on in a blackout?
Backup performance depends entirely on system design. In most homes, backup is designed to support essential circuits such as lighting, refrigeration, internet and selected power points.
Whole home backup depends on electrical loads, switchboard configuration and homeowner priorities.
Why do I need battery storage?
The battery acts as a reservoir, holding direct current (DC) electricity and releasing it as the home needs it.
Energy independence
A battery stores excess solar energy for use at night or during power outages, which reduces your reliance on the grid and gives you greater energy autonomy.
Increased savings
By storing excess energy during sunny periods and using it during peak utility rate hours, you can maximise your solar investment and reduce electricity bills.
Backup power
A battery system provides backup power during a blackout, so your essential appliances and devices keep running when the grid fails.
Environmental impact
Using stored solar energy reduces your carbon footprint, because you rely less on fossil fuels.
Grid support
Battery systems can help stabilise the electrical grid by supplying stored energy during periods of high demand. That contributes to a more resilient and efficient grid.
Our battery installations
Winner of the Installation Excellence Award 2022
Tesla, Inc. awarded Platinum Solar Designs its Installation Excellence Award for 2022.
The award recognises our solar installation at Tate Dairy Farm.
The whole PSD team worked on the project, and we thank the team and our clients for making it possible.
Receive your free quote
Get in touch today and we will design the system around your bills, your roof and your switchboard.