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Story summary
- A power line failure near Washington, D.C. knocked more than 3 GW of data centers off the PJM grid, creating voltage spikes.
- Dominion Energy said a high-voltage transmission component failed, causing the data centers to switch briefly to backup power.
- PJM recorded a 3.1 GW loss—about 3 % of demand—and restored service in ten minutes.
- ON.Energy is deploying 3 GW of battery-backed UPS systems to improve resilience.
