Germany added 7.39 GW of solar capacity during the first six months of 2026, according to data from the Federal Network Agency’s (Bundesnetzagentur) Market Master Data Register.

The addition raised Germany’s cumulative installed solar capacity to 125.37 GW at the end of June 2026.

Solar remained the country’s largest source of new renewable energy capacity during the period. Germany added an estimated 1.27 GW of net solar capacity in June, compared with 1.30 GW in May and 1.29 GW in April.

The agency estimated June’s additions by combining 1.10 GW of registered net capacity with another 168 MW expected to be reported under the one-month registration window.

Germany must add an average of about 1.66 GW of solar capacity every month to meet its target of 215 GW by 2030, according to the agency’s calculated deployment pathway. June installations remained below that monthly requirement.

Rooftop and Ground-Mounted Solar Installations

During the first half of 2026, Germany commissioned 7.48 GW of solar projects and retired 84.3 MW, resulting in net additions of 7.39 GW.

Ground-mounted solar projects accounted for 4.01 GW of the capacity commissioned during the period, followed by building-mounted systems with 3.19 GW. Plug-in balcony solar systems contributed 278.1 MW, while other solar power solutions, including installations over parking areas and noise barriers, added another 3.7 MW in capacity.

Bavaria recorded the highest solar capacity additions among Germany’s states, with net additions of about 1.59 GW during the first half if the year. North Rhine-Westphalia followed with 862.6 MW, while Baden-Württemberg added 826.1 MW.

Germany’s operational solar fleet included 79.87 GW of building-mounted systems and 43.96 GW of ground-mounted projects at the end of June. Plug-in balcony solar systems accounted for nearly 1.5 GW.

Wind Additions

Germany added 1.94 GW of net onshore wind capacity during the first six months of 2026, taking cumulative installed onshore wind capacity to 70.05 GW across 30,429 units.

Onshore wind additions reached 443 MW in June, compared with 343.3 MW in May and 278.4 MW in April. The monthly deployment level required to reach the country’s 115 GW target by 2030 was calculated at about 832 MW.

The country commissioned 2.37 GW of onshore wind capacity during the first half and permanently retired 423.3 MW. North Rhine-Westphalia recorded the highest net onshore wind additions at 503.5 MW, followed by Lower Saxony with 382 MW and Schleswig-Holstein with 351.7 MW.

Germany also added 1.06 GW of offshore wind capacity during the first half, increasing its operational offshore wind capacity to 10.8 GW.

Monthly offshore additions totaled 180 MW in June, 211.4 MW in May, and 203.3 MW in April.

The country’s offshore wind target stands at 30 GW by 2030. The agency calculated that average monthly additions of about 356 MW would be required to reach the target.

Biomass capacity declined by 3 MW during the first half of 2026. Germany had 9.15 GW of operational biomass capacity across 21,972 units at the end of June.

Germany added a total of 3.5 GW of solar capacity during the first quarter (Q1) of 2026. The country’s cumulative solar capacity now stands at 121 GW. The country also added 1.05 GW of onshore wind, with approximately 30,343 turbines deployed; 468 MW of offshore wind, with 1,714 units; and 39 MW of biomass, with 22,022 installations.