Germany’s Balcony Solar Hits 1 Million Milestone

By Tanya Dimitrova Ivanova
June 12, 2025

The number of registered plug-in solar devices, also called balcony power plants, is set to reach 1 million in Germany in June 2025, the German Solar Association (BSW-Solar) said on Wednesday.

The association believes that the threshold has already been surpassed, as many registrations typically arrive at Germany’s Federal Network Agency (BNetzA) with a delay of several weeks.

According to data cited by BSW-Solar, around 135,000 new devices were put into operation in the first four months of 2025, up by 36% on the year. The capacity of the newly installed balcony power plants increased by about 75% in the same period.

The growth is expected to continue. According to a survey commissioned by BSW-Solar at the end of 2024, as many as 8% of respondents plan to purchase a plug-in solar device in 2025. Another 9% intend to buy a device at a later date.

The positive development comes as the German government has significantly simplified in recent years the use of plug-in solar devices, BSW-Solar said.