Incorrect. Solar panels in Northern Europe provide plenty of energy.
Additionally in the winter we have complementary wind production from our windfarms.
Additionally in the winter we have complementary wind production from our windfarms.
For ~9 months of the year. For winter you need some other form of production that you can turn on at demand.
For example a panel in Helsinki produces less than 1% of its nominal output in the darkest months of winter.
edit: Just go and look at https://www.fingrid.fi/en/electricity-market-information/sol... if you check December of 2021 you can see that the avg output was ~2MWh/h with solar 395MW of capacity installed at the end of 2021.