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“The sonnenBatterie is a high-tech storage system that has proven itself in thousands of households – every day. The combination of a PV system and a sonnenBatterie will allow you to cover about 80% of your yearly energy requirement with self-produced and clean energy. Since your energy is being generated on your roof and not by some anonymous energy provider you are more independent than before. So take your energy future into your own hands and reduce your energy costs to a minimum. The decision for a sonnenBatterie is also a decision for the highest standards in safety and quality that Made in Germany stands for”.

Class A Energy Solutions is an authorised Sonnen partner, and offers the sonnenBatterie under the SA Home Battery Scheme. Initially, the HBS was limited to the use of Sonnen batteries, as the giant German manufacturer announced plans to manufacture up to 10,000 battery storage units a year at the old Holden car manufacturing site in Adelaide.

Sonnen batteries have a 10-year warranty.

Don’t forget about sonnenFlat!

sonnenFlat is a retail electricity offer available to anyone with at least a 5kW solar system and a Sonnen battery system with a minimum of 8kWh of capacity. An ideal addition to your solar system and sonnenBatterie in South Australia.

There are three primary criteria for someone to sign up for the sonnenFlat program. You must:

  • Have a functional solar system with a minimum capacity of 5kW,
  • Have a sonnen eco 8.2/8 battery system (8kWh storage capacity) or larger, and
  • Be connected to the grid.


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Discuss our battery storage options with our team today

Harnessing the power from the sun is the first step towards a sustainable future – if you have excess power generated from your solar panels exporting to the grid, a home battery system is the next logical investment, at Class A Energy Solutions, we’ve got you covered.


Please let us know what's on your mind. Have a question for us? Ask away.