Public Net Electricity Generation in the First Half of 2025 (Fraunhofer ISE)

Summary

• The share of renewable electricity in public net generation in Germany was 60.9 percent in the first half of 2025, below 65.1 percent in the first half of 2024.p.2
• Public electricity generation from sun and wind in the EU fell from 358.1 TWh to 344.4 TWh.p.2
• Wind energy produced 60.3 TWh against 73.4 TWh in the first half of 2024, a 31.6 percent share of public net generation.p.2
• Photovoltaic systems fed 40.0 TWh into the grid, a 30 percent increase over the previous year's 30.7 TWh.p.2
• Germany imported a net 7.7 TWh of electricity, against 9.2 TWh net imports in the first half of 2024.p.3
• The volume-weighted day-ahead price was 86.64 euros/MWh in the first half of 2025, up from 67.94 euros/MWh in the first half of 2024.p.3
• CO2 emission certificate costs rose 11 percent compared with the first half of 2024.p.3

Key insights

1. Solar power in France contributed 15.1 TWh against 11.3 TWh in the first half of 2024.p.2
2. Belgium reached 5.6 TWh of solar power against 4.1 TWh, and Denmark 2.3 TWh against 2.0 TWh.p.2
3. The June 2025 monthly price of 56.46 euros/MWh was the lowest since May 2021.p.3
4. Day-ahead prices were 100.54 euros/MWh in the first half of 2023.p.3
5. New customer electricity prices in Germany averaged 27 cents per kilowatt hour in June.p.3
6. Higher prices in January and February were driven by low wind generation.p.3