You want to use a lot of electricity? Great! We sell electricity. We will need cash in advance to handle some upgrades, rather than passing those costs on to other rate payers.

Exactly! Everyone's been conditioned that Data Centers = higher electric bills for residents. Of course, another option is for politicians to put any added costs on the data center companies. One tech guy even proposed, in order to gain wider acceptance, having the data center companies pay the whole electric bill for the town, so that data centers = 0 electric bills for residents.

My state almost passed one such bill this year. Lobbyists got it put in time-out until this year's legislative session ran out.

Power companies don't want to turn away customers in order to keep prices LOW! If you want that outcome, you need a government intervention (which could be laws around utility pricing, requirments for DC buildout etc)