Elsewhere it was mentioned that DCs pay less for electricity per Wh than residential customers. If that is the case, then it's not just about inflation, but also unfair pricing putting more of the infrastructure costs on residential customers whereas the demand increase is coming from commercial ones.

Industrial electricity consumers pay lower unit rates per kWh, but they also pay for any reactive power that they consume and then return -- residential consumers do not. As in, what industrial consumers actually pay is a unit cost per kVAh, not kWh.

This means loads with pretty abysmal power factors (like induction motors) actually end up costing the business more money than if they ran them at home (assuming the home had a sufficient supply of power).

Further, they get these lower rates in exchange for being deprioritised -- in grid instability (e.g. an ongoing frequency decline because demand outstrips available supply), they will be the first consumers to be disconnected from the grid. Rolling blackouts affecting residential consumers are the last resort.

There are two sides to this coin.

Note that I am in no way siding with this whole AI electricity consumption disaster. I can't wait for this bubble to pop so we can get back to normality. 10GW is a third of the entire daily peak demand of my country (the United Kingdom). It's ridiculous.

Edit: Practical Engineering (YouTube channel) has a pretty decent video on the subject. https://www.youtube.com/watch?v=ZwkNTwWJP5k