Alas, something like that wouldn't have helped me either as I was on the other side of the river :) . But yeah some sort of regional coordination between local governments or something like that would fix or at least help the problem.

Like I said in my original comment, I think really the problem is just the scale of the build out. Before the AI boom DCs were being built slowly enough that it wasn't a problem and/or costs could be amortized over time. But cost sharing agreements and subsidization needs to be done before the DCs are built the they're certainly not going to push for it, so the people need to. Lower state taxes in the future due to DCs subsidizing power is (sincerely) great and all, but it doesn't do shit for the families deciding between food and heating their house in the winter before those benefits kick in.