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sonnen eco unit in a garage
Mathew Tuttelman Testimonial

Mathew Tuttelman | eco Testimonial

Don't just take our word for it.

"Our sonnen eco was able to help us weather a 36-hour outage as a result of a downed power line. Staying powered with 100% renewable energy during a multi-day outage is priceless."

Mathew Tuttelman -  Needham, MA, owns a sonnen eco 17.5 with solar


Customer with his sonnen eco 17.5 kWh home battery system