Germany has quietly become home to over one million tiny solar power plants hanging from apartment balconies and mounted on terraces across the country. These plug-and-play solar systems, called “Balkonkraftwerke” in German, reached this milestone by late June 2025, showing how regular people are taking clean energy into their own hands.

Official registration numbers show 975,582 systems by mid-2025, but experts believe the real total exceeds one million when you count delayed registrations and systems people haven’t officially reported yet. This German balcony solar revolution represents a major shift in how Germans generate their own electricity, especially for the millions who rent their homes.