>Why aren't the data centers footing the bill?

> Something similar should be levied against large single point of use customers like this.

Already exists and has for decades.

All the "rules" (literal laws in some cases) for how the cost is borne for grid upgrade costs are a complex web.

There's half a dozen different ways you "apply" to connect a large load or generation to the grid. They all come with different rules that make or break things. And all this has multi-year timelines.

Source: Trying to get someone else to develop solar on my property