Europe: Electricity demand shifts across major markets driven by weather and holidays in May 2026

In the week of May 11, electricity demand increased in the French, Italian, and British electricity markets compared to the previous week, extending a two-week upward trend. The French market recorded the largest increase at 2.9%, followed by Italy with 0.9% and Great Britain with 0.5%. In contrast, the German, Belgian, and Iberian markets experienced declines, reversing the previous week’s upward trend. Germany registered the sharpest drop at 6.9%, while Belgium, Portugal, and Spain saw decreases of 2.0%, 1.6%, and 1.1%, respectively.

During the same period, average temperatures fell across most of the analyzed markets. Belgium and Germany recorded the largest declines, with drops of 3.8°C and 3.7°C, respectively, while Italy saw the smallest decrease of 0.7°C. Great Britain and France also experienced cooler conditions, with temperature reductions of 2.4°C and 2.5°C. In contrast, the Iberian Peninsula was an exception, as Spain and Portugal recorded slight temperature increases of 0.1°C and 0.3°C.

The week also included the national holiday on May 14 (Ascension Thursday), which contributed to lower demand in Germany and Belgium. At the same time, colder weather conditions supported higher electricity consumption in France, Italy, and Great Britain, while slightly warmer temperatures in the Iberian Peninsula led to reduced demand in Spain and Portugal.

For the week of May 18, AleaSoft Energy Forecasting’s demand outlook points to increases in Germany, Italy, the Iberian Peninsula, and Belgium, while France and Great Britain are expected to experience declines in electricity demand, AleaSoft reports.

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