From January to May 2025, Germany added a total of 5.97 GW of PV capacity, slightly below the 6.16 GW installed during the same period in 2024. The new capacity in 2025 includes 2.4971 GW from ground-mounted systems, 213.2 MW from balcony solar devices, and 74.1 MW from other solar system types, according to Bundesnetzagentur data.
By the end of May 2025, Germany’s total operational PV capacity reached approximately 106.3 GW. Data from the Marktstammdatenregister, the federal registry for energy market data, indicates that demand for rooftop PV systems remained subdued through May. The agency recorded 476.7 MW of new rooftop capacity in May, only 1.3 MW more than in March, which was the lowest month for rooftop installations in 2025. Approximately 30,000 new rooftop systems were commissioned during May.
The growth in PV capacity reflects Germany’s ongoing commitment to expanding renewable energy sources. Ground-mounted systems continue to dominate new installations, while balcony solar devices and other system categories contribute to diversifying the solar energy landscape. Despite the slight year-on-year decline in cumulative installations, the steady addition of capacity supports Germany’s efforts to strengthen its renewable energy infrastructure.
