The gear is claimed to save homeowners 1,550 on their energy bill each year.
Heartbeat comes with an app which gives real-time access to energy flows and historical data.
It’s free, every week, in your inbox.
Last year, the startup raised 200m in a funding round featuring the likes of Porsche and Norrsken Foundation.
Furthermore, its investing an undisclosed amount into a new R&D site in Berlin.
Story bySion Geschwindt
Sion is a freelance science and technology reporter, specialising in climate and energy.
