Your link doesn’t support your claim that moving energy is surprisingly cheap. I’m of the impression that this isn’t the case (we can’t easily build transmission lines that can carry the necessary amount of power from the southwest to other parts of the country).
I didn't add a link on power transmission. Actually building stuff in the US has issues that have little to do with cost.
Individual UHVDC links are in the multiple GW range. Exact numbers depend on a host of factors but something like 1c/kWh per 1,000 miles for long range is a reasonable ballpark. (Upfront costs in the billions.) Though it’s much higher for underwater links, etc.
A link sending power 24/7/365 at maximum capacity is significantly cheaper, conversly geographic barriers can quickly increase prices. Also those costs aren't constant with distance the transmission lines cost far less than the equipment at either end.
Your link doesn’t support your claim that moving energy is surprisingly cheap. I’m of the impression that this isn’t the case (we can’t easily build transmission lines that can carry the necessary amount of power from the southwest to other parts of the country).