The simple answer is that the sun never shines at night and some days it is cloudy, the wind also sometimes doesn't blow. News at 11.
So, in general utilities have to have 120% of their highest peak in capacity ... and against this, wind and solar can account for about 20% ... no matter how much wind and solar you have available.
So when it gets cold and it isn't windy ...
Because of the extreme cold, Xcel Energy urged its natural gas customers in Becker, Big Lake, Chisago City, Lindstrom, Princeton and Isanti to reduce the settings on their thermostats, first down to 60 degrees, then to 63, through Thursday morning to conserve enough natural gas to prevent a widespread shortage as temperatures remained 14 below zero. Some Xcel customers in the Princeton area lost gas service, and Xcel reserved rooms for them in nearby hotels.So the greenies want to stop building pipelines, and they want to not have coal or nuclear provide power.
What they have been telling us since the '90s is that it isn't going to get cold anymore ... at least not "record cold", or the "subzero temps of old" here in the upper midwest. Hey! We are in a new warmer climate zone now! Back in 2012 they were telling us that we were going to have to start worrying about termites, because "sub-zero nights were a thing of the past" in the Twin Cities.
Well, I guess this is "back to the future"!
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