They’re the market leader in Germany with over 16,000 installations under their belt, and they’re proving a big rival to the Tesla Powerwall. They’re warrantied for 10 years and you can build them up to 16kWh of usable storage – enough to power an average home for more than a day if the sun starts hiding. The Sonnen system stands out as a really flexible high quality option. With everything connected to the internet you also get automatic software updates, keeping everything efficient while you go and tend to the garden, or read a book, or run your business. In other words, once installed, you don’t have to do anything.
Along with the system, sonnen are planning to bring their sonnenCommunity to the UK. This allows you to share your energy with neighbours on a local grid. Got too much? Sell the excess to sonnenCommunity. Need a bit more? Buy it from the sonnenCommunity at very low rates.