Europe’s Heatwave Sends Power Prices Soaring as Nuclear and Wind Output Falls

An extreme heatwave in Europe has triggered a sharp rise in spot electricity prices, exposing critical vulnerabilities in the European Union’s energy system. At the same time, nuclear output in France and wind generation in Germany have fallen, creating a power shortage that has forced the market to rely more heavily on expensive gas amid geopolitical uncertainty around the Strait of Hormuz. European Electricity Prices Jump More Than 20% European electricity markets recorded a more than 20% increase in day-ahead prices. According to LSEG data, French electricity prices jumped 21.8% to €142.50 per MWh. In Germany, contracts rose 22.8% to €138.50 per MWh. Indicator / Event Effect and Consequences German prices rise 22.8% Higher energy costs for industry and households German wind generation falls 60% Emergency gas turbines brought online French reactors reduce or halt output Less low-cost electricity available for neighboring EU markets Peak temperatures reach 35–39°C Cooling demand surges as air-conditioner use increases Heat Hits Nuclear and Renewable Generation The crisis has emerged from the combination of extreme temperatures and structural challenges in electricity generation.