The question we are most often asked by our customers who own a photovoltaic system is: “Why do I have to feed excess energy into the grid and cannot store it and use it at night?”. Indeed, due to the lifestyle of modern families, energy consumption is higher at times when the system is not operating.
This is the main reason why, over the years, we have focused on finding a truly efficient storage system to retrofit existing PV systems. We finally found it in 2015. Sonnen is the solution to your energy self-sufficiency problems. That is why it has become our trusted and reliable partner to offer a totally innovative storage services to our customers.
But what are the unique technical, functional and warranty characteristics of Sonnen products?