Which were caused by a massive winter storm, utilities took massive losses, some in Texas went bankrupt over the costs. Basically we’ve retired so much coal as a region (and country) that when the gas supply got screwed up by freezing wells utilities had to run gas plants far more than expected at gas prices that were exponentially higher than expected.

Combine that with no sunshine for days and wind generation not helping much due to freezing, lack of wind, or grid congestion it was a perfect storm to lead significant change in operations. Except little was done, and we are more at risk today then we were then.