PJM’s reliability could start failing by 2030 if data center growth continues: report

A new study warns that PJM, the regional grid operator covering Pennsylvania and much of the mid-Atlantic, could struggle to keep the lights on reliably by 2030 if data centers keep getting built at their current pace. The study, done for the Pennsylvania Public Utility Commission, found that under normal projections, the grid's expected reliability shortfall would be nearly six times worse than PJM's target. In a worse scenario, with faster data-center growth and less new power supply, that shortfall balloons to more than 100 times worse, meaning the region could see loss-of-power events on more than 13 days a year instead of roughly one every ten years, which is the usual goal.

For homeowners in PJM's territory, this doesn't mean an immediate change to your bills or service. But it signals that the huge growth in data centers, especially those built for AI, is starting to strain the same grid that powers homes, and regulators are taking it seriously. Pennsylvania's governor has already ordered faster permitting for large data centers that bring their own power supply, and the state's utility commission is looking at new rules for emergency power cutbacks and how data center costs get spread across ratepayers.

None of this requires homeowners to act right now. But it's worth watching if you live in this region, since decisions made in the next few years about who pays for new power supply and how shortages get managed could eventually show up in electricity rates or grid reliability at home.