One fallen power line exposed a growing AI data center problem. Here’s how to fix it.

A downed power line near Washington, DC triggered a rapid backup-power switch at nearby data centers on the PJM grid.

More than 3 gigawatts of load dropped almost at once, causing voltage swings and flickering lights across a wide area.

The event did not cause a blackout, but it highlighted how concentrated data center growth can stress grid stability.

Experts say facilities and control systems need to ramp large loads up and down more smoothly to reduce future disturbances.