In the week of June 1, solar photovoltaic generation fell across major European electricity markets compared with the previous week. Germany recorded the steepest decline at 25%, while France decreased by 24%. Elsewhere, Portugal was down 4.6% and Spain fell by 4.7%, with Italy registering a 7.7% drop.
Despite the weekly decrease, June 1 delivered record solar output in parts of Southern Europe. The Iberian Peninsula reached all-time highs for a June day, with Spain generating 250 GWh and Portugal producing 32 GWh. For Portugal, that level marked the second-highest solar production in its history, positioned just below the record set on May 29, 2026.
Solar forecasts for the week of June 8
For the week of June 8, solar forecasts point to mixed outcomes across Europe. According to AleaSoft Energy Forecasting, Italy and Spain are expected to increase solar generation. The German market is projected to see a further decline in photovoltaic output.
Wind generation rises in early June
Wind power output increased across most European markets during the first week of June. France led with a 151% rise, followed by Portugal up 81%, and Germany higher by 75%. The data also showed a second consecutive week of increases for both Portugal and Germany.
Spain recorded a 37% increase in wind generation, while Italy saw a more moderate rise of 16%. Several markets also reached daily wind milestones during the period. On June 2, Portugal posted its highest daily wind output in three years at 62 GWh, while France set a June record on June 4, reaching 276 GWh.
Diverging wind outlook for the second week of June
AleaSoft Energy Forecasting expects continued divergence in wind energy trends for the second week of June. The forecast calls for increases in both Germany and Spain. By contrast, it projects declines in wind generation for France, Portugal, and Italy.
AleaSoft Energy Forecasting’s assessment was reported as applying across the same set of markets for the second week of June .
