The problem is that power from wind is random. To match supply=demand, a regulating/controllable power-source like coal/gas/hydro is needed. Because Europe is c

The problem is that power from wind is random. To match supply=demand, a regulating/controllable power-source like coal/gas/hydro is needed. Because Europe is closing their coal/nuclear plants and hoping to replace them with wind, they end up using Scandinavian hydro-power to match supply/demand. This is currently a catastrophe for Scandinavian prices.