Fraunhofer ISE: More solar power, lull in wind
The share of green electricity in net electricity generation in Germany was 60.9 percent, down from 65.1 percent in the first half of 2024. This was due to less wind energy fed into the grid. Within the European Union, electricity generation from solar and wind power fell from 358.1 terawatt hours in the first half of 2024 to 344.4 terawatt hours in the first half of 2025. This is based on the half-year data on public net electricity generation compiled by Fraunhofer ISE based on the energy-charts.info data platform.
40 terawatt hours of solar power so farWind energy was once again the strongest source of electricity in Germany, with 60.3 terawatt hours. Its share of net electricity generation was 31.6 percent. "That's around six percentage points less than in 2024, simply because there was less wind than last year," commented Professor Bruno Burger of Fraunhofer ISE. The increased solar power generation could only partially offset this. Photovoltaic systems fed 40 terawatt hours into the grid. This represents an increase of 30 percent compared to the same period last year. Electricity generation from photovoltaics also increased in many other European countries, such as France, Belgium, Denmark, and Poland.
Electricity imports from ScandinaviaIn the first half of 2025, a net 7.7 terawatt hours of electricity were imported. Electricity imports came from Scandinavia (Denmark, Sweden, and Norway), France, Switzerland, Belgium, and the Netherlands. Due to the low electricity prices for wind and hydropower in Scandinavia, electricity imports were cheaper than electricity from German coal and gas-fired power plants. Electricity was exported to Austria, the Czech Republic, Luxembourg, and Poland.
Electricity prices on the stock exchange remain stableAfter a sharp decline in 2023 and 2024, electricity prices on the exchange have risen slightly again: from €100.54 per megawatt hour in the first half of 2023 (day-ahead auction) to an average price of €86.64 per megawatt hour in the first half of 2025. Electricity prices for new customers in Germany fell back to the level of summer 2021, averaging 27 cents per kilowatt hour in June 2025. Natural gas prices are higher in the first half of 2025 than in the first half of 2024. CO2 emission certificates increased by eleven percent compared to the first half of 2024. (nhp)
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