Image: Fraunhofer Isee, Energy cards
The German day-light electricity spot price was negative for 162 hours in May, a total of 720 hours before the month, according to data from Fraunhofer Isee.
Negative prizes occurred on 22 of 30 days in June, usually when PV systems worked at full capacity between the morning and in the middle of the afternoon.
Fraunhofer Ise’s energy cards registered 141 hours of negative prices in June. The price was exactly zero for 12 hours. A total of 162 hours in June saw the price below this level, with a maximum low of € 0.05 ($ 0.06)/kWh.
That is a slight decrease in May. In the first half of this year, however, the negative prices in Germany amounted to 389 hours and almost 2023 reached a total of 399 hours. In 2024 the total climbed to 457 hours. This year’s figure is expected to surpass that.
Data from Energiebeclets shows that, in addition to the 389 hours of negative prices in the first half of 2025, there were 38 hours when the day-air price was exactly € 0.00/kWh. During 474 hours the price reached a low point of € 0.05/kWh.
At 8 p.m. (CEST) on 30 June, the day-controlled electricity price was mentioned at just under € 0.289/kWh-the highest value for the month. Peak -daily prices in June often took place between 7 pm and 10 pm. The lowest price of the month was registered on June 22 at 1 p.m., at -€ 0.099/kWh.
The EPEX place of the European Power Exchange reported the average price for the day for June in Germany for € 0.0642/kWh. The daily average prices varied from € 0.0226/kWh on 8 June to € 0.1024/kWh on 30 June.
On June 30, the sun shone a large part of Germany under clear skies. However, the prices of the day that did not fall below zero. That is in contrast by 22 days in June when the price dropped below € 0.00/kWh.
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