Sonnen Battery

Sydney, Melbourne, Canberra, Adelaide, Brisbane,
Central Coast, Newcastle, Wollongong, Orange, Ballina


The main purpose of a Sonnen Battery is to store excess energy from your solar system.
Allowing you to use this energy later or whenever you need to. Rather than buying electricity from the grid.

Would you like zero cost on your electricity bills? Well, with the right battery design and configuration, you can! Break free from the energy companies with a self-sufficient energy system!

We offer amazing prices on the latest model of Sonnen Battery. Also great rates on the sonnenFlat.

See below for more details.
Servicing – Sydney, Melbourne, Adelaide, Central Coast, Newcastle, Wollongong.

Why should you switch to solar power?

8 Reasons why you should buy a Sonnen Battery

  • The Sonnen Battery stores renewable energy that you can use 24/7.
  • Saving you money on your energy bills.
  • It’s clean, affordable energy.
  • We tailor the battery to suit your energy needs.
  • The battery is scalable for future demands.
  • It’s cost-effective, safe and doesn’t require ongoing maintenance.
  • Sonnen is made of the highest quality and worldwide safety standards.
  • And integrates into any solar system.

Sonnen Battery Facts

Sonnen is an all in one battery storage solution.
It has the latest technology battery, an embedded inverter and smart energy controller.
The software will determine the best time to charge and discharge energy.

This is a solution that can be retro-fitted to any existing solar panels installation.
It is a “plug and play” which means there is no upgrade required to your existing system.


The warranty lasts for 10,000 cycles or 10 years, whichever comes first.


Click here to download the specifications.

Energy Usage Guide


Installing a Sonnen Battery in your home

Smart Energy Answers is a certified installer. Make an enquiry below and one of our friendly team will contact you within 24 hrs for a free consultation.

We will then visit the site to identify the right battery solution for your installation. After we finalise your quote, our Engineers will design your Sonnen system. We then submit the required documentation to the energy
network on your behalf. Finally we aim to install your system in within 3-4 weeks from quote acceptance.
With our 7-year whole-of-system warranty – peace of mind guaranteed.

Get Blackout Protection

With Sonnen Protect you can add backup functionality to your battery. 
The system will be able to capture a grid issue in real time and switch over to battery power.
This ensures a continuous flow of electricity to your house.
As a result, your house will be the only one with its lights on during a blackout.


SonnenFlat is a revolutionary electricity model, available in Australia since July 2017.

SonnenFlat is the “electricity version” of a pre-paid phone plan with calls and data. Giving you peace of mind on your spend without surprises!

Sonnen battery owners will be eligible for sonnenFlat energy plans. They provide a flat price electricity of $30 a month. You will be able to use electricity at any time day or night, even when the battery is empty!

You can sign up to SonnenFlat and receive access to a set amount of grid energy. The amount determined by the size of your batteries and expected yearly usage. The size of your solar system is also taken into consideration.

How is this possible?

Once you sign up for the SonnenFlat program you will be part of a community. A virtual microgrid, together with other Sonnen owners.  Thanks to cutting-edge technologies and algorithms. Sonnen will use electricity stored to balance the electricity network during peak times.

Providing cleaner energy and helping Australia shift to a distributed generation model. Hence mitigates grid bottlenecks.
Say goodbye to escalating electricity costs and hidden daily charges. Take back control of your energy bills.

SonnenFlat Packages

Terms, Conditions and eligibility criteria apply.

Available in Australia now!

We service Sydney, Melbourne, Adelaide, Central Coast, Newcastle, Wollongong.


Contact Smart Energy Answers to discuss Tesla Powerwall for your home or business.

Speak with one of our consultants to find out more.


Where are your installation areas?

  • Sydney
  • Melbourne
  • Adelaide
  • Central Coast
  • Newcastle
  • Wollongong

Waht is the warranty for a sonnen battery?

The warranty lasts for 10,000 cycles or 10 years.

is the sonnen battery good for the environment?

Yes, it is. Storing energy for later use and not using the grid. Preventing the use of coal resources. Hence helps save carbon from being injected into the environment. The battery is also recyclable.

How long does the battery last for?

With a 4kW battery charged, it would be empty before midnight. You can always upgrade to the 16kW battery if you think this will not be enough for your household.

can the battery overcharge?

The Sonnen Battery cannot overcharge. It will charge until its full and then redirect the extra energy to the grid. This is one of its safety features.

is the sonnen battery safe?

Yes, it has undergone over 150 safety test, and has never had any reports of safety issues. It also does not contain any toxic metals.

will the sonnen battery work when there's no sunshine?

Of course. The whole purpose of the battery is to store energy for later use. So when it’s sunny it stores the energy and then discharges it when needed.

what is the battery made of?

It is made of iron and phosphate.

how long does it take to install the battery?

This depends if you need a complete solar system. Or only the battery to integrate with your current solar system.
If its a complete system it will take about 3-4 weeks from the time of quote to completed job.
If it’s only the Sonnen battery, usually a few hours.

does it require servicing or maintenance?

It does not require maintenance.

how long are the battery's service life?

Usually, the Sonnen battery will continue to work for 20 years.

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