Meta's 2023 electricity usage was 11.5 terawatt-hours [1]. They've historically added about two terawatt-hours per year. That's only 228 MW of additional capacity per year.
Sure, but in every historical year they are also trying not to increase energy use, for cost reasons -- they have not been build-out limited. I don't think adding an additional 150% of historical average is especially challenging (beyond the huge OpEx expenditure, which isn't a problem for Meta).
[1] https://www.statista.com/statistics/580087/energy-use-of-fac...