These are nuclear reactors that comprise the Cruas Nuclear Power Plant in the Savoie region of France – but what you can’t see is that they are sitting on the Rhone river, near Montélimar. According to WikiPedia they produce 3’600 MW of electricity and account for 5% of France’s electricity demand.
Let’s assume two large wind generators could crank out around 36 MW – this means we’d need 2×100 = 200 wind generators to equal the output of these 4 reactors!
By the way, so as not to be confused, the big “hyperbolic cooling towers” you see are just for cooling the water. The reactors themselves are the tiny cylindrical objects you see on the far left, with the small domed roofs.