Took your link, changed de to en, reduced granularity weekly to daily. It looks way more spiky: https://www.energy-charts.info/charts/energy/chart.htm?l=en&c=E

Took your link, changed de to en, reduced granularity weekly to daily. It looks way more spiky: https://www.energy-charts.info/charts/energy/chart.htm?l=en&c=EU&interval=day&legendItems=lw3w1&partsum=0&year=2025 https://www.energy-charts.info/charts/energy/chart.htm?l=en&... Also, both wind and solar (especially solar) change vastly under a sub-daily aggregation.