What is powerd and why is it using so much cpu

When I check the activity monitor, it is almost pegged out. Because of this other things run slowly. So, what is "powerd" and why is it all of a sudden using so CPU?

It is something related to power management, but it shouldn't be running away like that.
Select it in Activity Monitor and then Quit it using the "X in octagon" button. You should only need Quit, but try force quit if needed.
It will restart, but hopefully it won't start running away. If it does, there is likely something else causing it to do that.

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