A ‘double zero energy’ home with energy storage and solar PV systems has been launched in the US, as a result of the partnership between solar manufacturer and developer SunPower and homebuilder KB Home.

PV Tech Storage speaks to Wolfram Walter of German storage designer and manufacturer ASD Sonnenspeicher about a subject close to home, his home. Walter built a battery system for his own PV array, turning it into a business and turning his prized Porsche into a PV-friendly EV along the way.