Matthias Weyland loves having people ask about his balcony. A pair of solar panels hang from the railing, casting a sheen of dark blue against the red brick of his apartment building. They’re connected to a microinverter plugged into a wall outlet and feed electricity directly into his home. On a sunny day, he’ll produce enough power to supply up to half of his family’s daily needs.
Weyland is one of hundreds of thousands of people across Germany who have embraced balkonkraftwerk, or balcony solar. Unlike rooftop photovoltaics, the technology doesn’t require users to own their home, and anyone capable of plugging in an appliance can set it up. Most people buy the simple hardware online or at the supermarket for about $550 (500 euros.)
The ease of installation and a potent mix of government policies to encourage adoption has made the wee arrays hugely popular. More than 550,000 of them dot cities and towns nationwide, half of which were installed in 2023. During the first half of this year, Germany added 200 megawatts of balcony solar. Regulations limit each system... Read more
