Jan Rosenow doesn't know what he is talking about, power markets are not only day ahead market, but there are a lot of other maturities, CAL27 is higher in Spain than France or the Nordics.

https://www.eex.com/en/market-data/market-data-hub

Well, it’s HN. People love to spread articles that push renewables. In the meantime, France has the cleanest and cheapest electricity among the large countries in Europe.