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A comment on DC Grids. Parent comment

Re:DC Grids by junon on Friday August 25, 2023 @07:37AM (#37260547)
Disclaimer that I'm not an expert. As far as I understand, AC runs on the outside of the cable rather than through the conductor. DC does not. That's one of several reasons why.
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Re:DC Grids by sheepshear on Friday August 25, 2023 @10:28AM (#37262119)
AC current crowds towards the surface of the conductor, called "skin effect". Imagine applying a color gradient fill to a circle. Increasing the frequency makes the gradient sharper near the surface and shallower near the center.
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