Energy generation methods aren’t fungible.
Methane is favored in many cases because they can be quickly ramped up and down to handle momentary peaks in demand or spotty supply generated from renewables.
Without knowing more details about those projects it is difficult to make the claim that these plants have anything to do with increased demand due to LLMs, though if anything, they’d just add to base load demands and lead to slower decommissioning of old coal plants like we’ve seen with bitcoin mines.