AI data centers are straining power grids — and customers may help pay for it
As tech companies race to build AI data centers, utilities are rewriting how they plan the grid — and in places like North Carolina, residents are already seeing higher bills and new pollution fights.
What happened: AI data centers are adding electricity demand faster than utilities have seen in decades. NERC projects 224 GW of new U.S. summer peak demand over the next decade, driven largely by data centers. In North Carolina, that abstract trend has a face: Amazon's proposed $10 billion Richmond County AI campus, backed by 645 diesel generators for backup and 'bridge power,' plus a Duke Energy rate request that could push average residential bills up 17% by 2028. Protesters have shown up at both the state legislature and a local air-permit hearing.
Why it matters: Data centers are a small share of Duke Energy's economic-development pipeline by project count (30%) but drive most of its projected demand growth (80%) through 2030 — and someone has to pay for the poles, wires and power plants that follow. Regulators and advocates are now fighting over how those costs split between tech companies and ordinary ratepayers, with North Carolina's attorney general already disputing Duke's own numbers on a proposed rate settlement.
How it works, plainly: Utilities used to plan for one likely future; now they're juggling many possible ones, since nobody knows exactly when or where the next data center will land. That uncertainty is pushing interest toward flexibility instead of just more concrete and copper: Duke University researchers estimate the grid could absorb 76 GW of new large-customer demand if those customers agreed to briefly cut power use during the handful of peak-demand hours each year — essentially using existing 'unused' capacity rather than building for worst-case days that rarely happen.
The rollout: North Carolina's environmental regulator is deciding whether to issue Amazon's and Duke's air permits after a comment period that closed July 31. Meanwhile Duke's broader rate case moves through the state utilities commission. Nationally, this is becoming the template: interconnection queues, flexible-demand deals and fights over diesel backup power are playing out in multiple states as more hyperscale campuses seek grid access.