Winter is the time of the year most energy is produced by wind: https://commons.wikimedia.org/wiki/File:Germany_Monthly_Electricity_Generation_from_Wind_and_Sol

Winter is the time of the year most energy is produced by wind: https://commons.wikimedia.org/wiki/File:Germany_Monthly_Electricity_Generation_from_Wind_and_Solar.png https://commons.wikimedia.org/wiki/File:Germany_Monthly_Elec... It's also not really an issue that nuclear is free from. It's very difficult for nuclear to follow demand and it is not as reliable as can be seen with France's current struggles.