Germany’s August solar gains strengthen 2030 target trajectory, narrowing monthly requirement to 1.623 GW. (Photo Credit: Bundesnetzagentur)  
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Germany’s August 2025 Installations Inch Closer To 2 GW

Germany’s cumulative solar capacity reached 111.1 GW by August 2025, with additions of 10.7 GW during 8M 2025

Anu Bhambhani

  • Bundesnetzagentur says Germany added 1.95 GW of new solar capacity in August 2025 

  • Ground-mounted solar doubled month-on-month to 1.29 GW, while rooftop installations declined sharply 

  • Germany’s solar base expanded to 111.1 GW, underscoring steady progress toward its 2030 target 

Germany is poised to report a significant rise in solar PV installations for August 2025, totaling 1.95 GW. The Federal Network Agency (Bundesnetzagentur) said that the figure includes an estimated 10% boost to cover late registrations. 

This contrasts with 1.06 GW of installations in August 2024 and compares to 1.42 GW for July 2025, a slight increase from its initially reported 1.408 GW (see Germany Installs Over 1.4 GW New Solar Capacity In July 2025). 

It has been several months since Germany reached closer to the 2 GW mark. The last time it managed to come this close was in December last year with 1.97 GW.  

Nevertheless, the bright spot in terms of installation pace is that the country now needs to install 1.623 GW monthly to achieve its 215 GW target for 2030, down from 1.63 GW needed till last month. 

According to the agency’s figures, ground-mounted solar systems contributed 1.29 GW to total August 2025 installations, representing a month-on-month (MoM) increase of almost 100% from 650 MW last month. Rooftop solar system additions declined over the same period by over 43% to 401 MW. 

Balcony solar or plug-and-play system registrations dropped slightly from 63 MW in the last month to 58 MW in the reporting month. 

In overall terms, within January to August this year, Germany registered 10.7 GW of new solar PV capacity, expanding the country’s cumulative installations to 111.1 GW with 5,473,262 systems grid-connected. 

Germany should continue to press ahead to achieve its 80% renewable energy share target for 2030, driven by 215 GW of solar PV, as proposed by the energy transition monitoring report commissioned by the German Federal Ministry for Economic Affairs and Energy. 

However, the government is contemplating ending fixed feed-in tariffs (FIT), which may lead to a temporary hike in installations before a directive to this effect is actually issued (see Germany Releases Energy Transition Monitoring Report).  

This table shows the amount of electricity produced domestically in Germany during H1 2025 and fed into the grid. Solar PV generation increased by 27.9% to account for 17.8% of the total electricity production in the country. (Photo Credit: Federal Statistical Office, Germany)

Meanwhile, preliminary results from the German Federal Statistical Office (Destatis) show that in H1 2025, 221 billion kWh of electricity was generated and fed into the grid. However, the share of renewable energy sources declined by 5.9% year-on-year (YoY) to 127.7 billion kWh, while that of conventional energy sources rose by 10.1%.  

Solar PV’s share, however, recorded a significant increase of 27.9% YoY, rising to 39.3 billion kWh, accounting for 17.8% of the total electricity production in H1 this year, mainly driven by new systems coming online and the unusually high number of hours of sunshine. 

While unusually weak wind conditions lowered electricity generation from this source by 18.1% YoY to 60.2 billion kWh, wind still accounted for 27.2% of the country’s total electricity production in H1 2025.