Rising global temperatures are imposing physical constraints on power generation infrastructure far beyond the well-documented cooling challenges facing nuclear reactors.
Solar panels lose efficiency as ambient temperatures climb, while wind turbines often face curtailment during heatwaves due to low wind speeds and grid congestion.
Similar hot spells are being reported across other parts of Europe, straining local grids.
Thermal plants, including coal and gas facilities, also struggle with reduced cooling water availability and higher intake temperatures, leading to forced output reductions.
This broad-based vulnerability is complicating energy planning as grids face simultaneous supply constraints and surging demand for air conditioning.
The issue has gained urgency as the German Weather Service (DWD) upgraded heat warnings to cover all federal states, with temperatures projected to reach 38°C in several regions.
Similar hot spells are being reported across other parts of Europe, straining local grids.