Gen 3 reactors have a large tank of water to cool an over heating reactor just sitting there, in the very rare case it may overheat. (passive cooling) Coal also needs water for dust suppression in mines and crushing plants. Cooling can be done with sea water if available. France did have trouble once in 2022. It is only a matter of using larger heat exchangers. They still abate more CO2 then any other technology for the footprint and possibly cost. The countries that are doing the best in this regards are France and Sweden. Denmark have been trying to do it for 50 years and still have a coal fired power station See https://app.electricitymaps.com/zone/FR/72h/hourly. A bit of interesting reading here for people who think it is windy somewhere https://wattclarity.com.au/articles/2024/06/13june-lowwind/ There was a roughly 3 month wind lull in April , May and June last year. https://wattclarity.com.au/market-operations/eventful-days/2024-q2-wind-lull/