21:28 - 24.06.2026

---

June 24, Fineko/abc.az. Severe heatwaves sweeping across Europe have triggered massive volatility in electricity markets as cooling demand surges while aggregate power generation faces environmental constraints.

According to ABC.AZ, tracking trading statistics from EPEX Spot, average electricity prices in Germany and the UK are currently testing their highest June levels since the 2022 European energy crisis. In France, power prices are driving toward their highest June average since 2023. EPEX Spot metrics indicate that intraday electricity prices on Wednesday are projected to touch 665.82 euros per megawatt-hour ($MWh$) in Germany and 313.36 euros per $MWh$ in France during evening peak hours.

Supply Deficit Alerts and Operational Constraints:

• United Kingdom: The grid operator, National Energy System Operator, issued a rare summertime electricity margin notice warning of a potential 1.4-gigawatt ($GW$) supply deficit on Wednesday evening, requesting local generators to ramp up baseline capacities.

• Nuclear and Thermal Retraction: In France, multiple nuclear reactors are failing to run at full capacity as elevated river water temperatures limit essential cooling operations. Similarly, Switzerland's Axpo scaled back output at the Beznau nuclear plant due to high temperatures in the Aare River, while Germany's Niehl 3 gas-fired plant logged minor technical outlays cutting into its technical load.