In the first week of June 2026, electricity demand rose in Great Britain and Spain versus the previous week. The British market posted a 3.1% increase, reversing the downward pattern from the prior two weeks and partially recovering demand after the May 25 Spring Bank Holiday. Spain recorded a 0.9% rise, extending its run of weekly increases to a third consecutive week.
Most continental European markets saw declines over the same period. Italy recorded the largest fall at 8.6%, linked to the Republic Day holiday on June 2. France, Belgium, and Portugal registered decreases spanning from 3.0% in France to 7.0% in Portugal, while Germany declined by 1.0%, continuing a second week of falling demand.
Holiday effects also featured in Portugal and Germany. Lower consumption in both countries was mainly attributed to the Corpus Christi holiday on June 4, which is a national holiday in Portugal and observed in several German regions.
Temperature changes alongside holiday-driven demand moves
Average temperatures fell across all analyzed markets during the period, affecting electricity consumption patterns. France and Great Britain recorded the largest temperature drops at 5.0°C. Belgium followed closely with a decrease of 4.9°C.
Other markets experienced smaller temperature declines, including Spain, Italy, Portugal, and Germany. Spain saw a drop of 1.4°C, while Italy, Portugal, and Germany recorded milder decreases within the range reported for that group. Germany’s temperature decline was 2.7°C.
AleaSoft forecasts mixed demand direction for second week of June
For the second week of June, demand forecasts point to mixed expectations across Europe. AleaSoft Energy Forecasting anticipates higher electricity demand in Germany, Belgium, France, Portugal, and Italy. At the same time, it expects declines in Great Britain and Spain.
AleaSoft Energy Forecasting reports these outlooks for the second week of June .
