The Physical Stack of AI · Energy and grid
You can describe the three forces — interconnection queues, local political pushback, and behind-the-meter workarounds — that shape where an AI datacenter actually gets built in 2026.
The previous chapter covered how hyperscalers source clean power. This chapter covers what happens before that power can reach a campus: the grid itself.
Three forces define the politics of siting in 2026.
Interconnection queues. A new large electrical customer can't just buy a substation and start drawing power. It joins a queue at the regional grid operator (PJM, MISO, ERCOT, CAISO, SPP) and waits for a system-impact study, a facilities study, and a network-upgrade agreement. PJM alone has roughly 3,000 GW of generation projects in queue as of 2026 — most of them solar and storage, but the queue serializes for everyone. A new 500 MW load can wait three to five years to interconnect, sometimes longer.
Local political pushback. Datacenters look like industrial parks, draw enormous amounts of electricity and water, occasionally generate noise from cooling fans and backup generators, and ship much of the economic upside to owners outside the host community. Communities are noticing. The Netherlands now limits new hyperscale sites across most of the country using a 10 hectare / 70 MW threshold. Loudoun County moved datacenters in key industrial districts into conditional and Special Exception review. Ireland's CRU connection policy makes new datacenters bring generation or storage and satisfy renewable-energy requirements before they can grow.
Chapter contains 3 lessons.