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The Powerwall isn’t a bad product, its attractive for a battery, has a decent amount of storage and a useful app. Being an AC coupled battery, it has its pros and cons.

On the up side, it can be installed with any solar system. It doesn’t “talk” to your solar system at all so it doesn’t care what solar system you have.

On the down side, it has a 5kW inverter built-in which in Queensland counts towards your total inverter capacity allowance with Ergon and Energex. In Queensland, there is a limit of 10kW of Inverter capacity for single phase properties and because the Powerwall is 5kW, you will then be limited to a 5kW Solar inverter.



The sonnenBatterie is not just a battery, it’s an intelligent storage system that automatically adjusts the energy usage in your household. In combination with solar panels the sonnenBatterie will enable you to supply yourself with clean energy – thus making you independent and protecting you from energy price hikes.

Long Lasting

Possibly its most impressive feature is its long life. The sonnenBatterie has a minimum lifespan of 10,000 charging-cycles. That’s over 2 per day. This is ideal to take advantage of Time of use or demand tariffsSo you can rest assured that it will supply you with clean energy for many years to come.


The sonnenBatterie exclusively uses lithium iron phosphate batteries – the safest lithium battery technology available today.



For Offgrid and Hybrid use, we use and recommend Sonnenschein tubular gel VRLA batteries. These German made cells are designed for use with Solar and offer maintenance free service and high cyclic performance.



Super Capacitors

Super Capacitors are an emerging technology and is shaping up to be a game changer for energy storage. Testing shows that they aren’t bothered by many of the issues related to traditional battery storage, including

  • Operating temperature. – Its service life seems unaffected by extreme ambient temperatures.
  • Cycle life. – The Sirius module pictured here offers 1,000,000 cycles.
  • Charge and Discharge rates. – It can accept a wide range of charge & discharge currents.
  • Fast charging. It can charge in a fraction of the time of Lithium or Lead Acid.

Climatecare Electrical has an extensive evaluation process for new products so it will be a while before we see these hitting the market but keep an out for this product over the next 12 months.



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