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Toward Grid Independence with ZEN Sonnen

An ATA member describes his results

In the first two months of operation, our house has moved from 30% to 70% grid independence.” 

“The battery has paved the way for us to disconnect from the gas network and move to an all-electric, renewably powered household.”

– Terry Teoh, ATA member and ReNew reader


What happens when a low electricity home adds a battery?

In April 2017, ATA member and ZEN Energy’ General Manager of Engineering Terry Teoh added a 4kWh ZEN Sonnen battery to his solar energy system to provide solar load shifting, increase his home’s solar self-consumption and gain independence from the grid.

Even with very low electricity usage in his home, Terry’s battery installation has substantially increased his grid independence to more than 70%. Adding battery storage to his solar system has helped to pave the way for his household to become completely renewably-powered.


Grid independence increased to more than 70%


Solar self-consumption increased to 50%


Daytime grid usage completely eliminated

“With the ability to add more storage, we have a pathway to lift our grid independence.”

Read the full article

ZEN Sonnen is ideal for those looking for energy independence


Add a ZEN Sonnen solution to your home just like Terry and gain grid independence in months.

  • Maximise solar self-consumption
  • Increase grid independence
  • Reduce energy bills

Move towards a sustainable future and a renewably-powered home with your own ZEN Sonnen solution. Combining beautiful design with outstanding German quality, the ZEN Sonnen Storage System is ideal for those looking for energy independence.

ZEN Sonnen learns on the job, understanding how you use energy in order to maximise self-consumption. With a ZEN Sonnen Storage system, you could save hundreds on your quarterly electricity bills and use your own renewable energy 24 hours a day.


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Proudly Australian

ZEN Energy is proudly Australian, and has been since our beginnings in 2004.

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Solar & storage experts

With over 10 years experience, we’re specialists in our field, and we know solar & battery storage back to front.

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A solution designed specifically for you

We find out how much energy you use, when you use it, and what you pay, then design a system specifically to suit your needs.

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We won’t lock you in

When you install a solar & storage system with ZEN Energy, we won’t lock you in to any ongoing contracts or agreements.

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ZEN Technology Partners

After rigorous testing, only the best products and companies are welcomed to the fold as ZEN Technology Partners.

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Australian-based customer support

ZEN Energy’s Australian-based customer support team are your first point of contact for any questions or claims.

Find out how you could maximise your solar self consumption and become independent from the grid with ZEN and Sonnen.