Exclusive | A New Threat to Power Grids: Data Centers Unplugging at Once – WSJ
Data Centers Unplugging at Once – WSJ
The roughly 40 data centers, which had been using enough electricity to supply more than one million homes, simultaneously switched to backup power sources in February 2025, when a high-voltage power line malfunctioned. The sudden plunge in electricity demand forced the grid operator to take quick action to avoid potentially serious damage.
The incident, details of which haven’t been reported, was the second such problem in Virginia within a span of months. In July 2024, about 70 data centers withdrew from the grid when another high-voltage line failed, requiring a similar scramble to keep power supply and demand in line.?
Balancing the two is critical in maintaining the health of the grid: Both undersupply and oversupply of electricity demand can cause power plants to fail, resulting in blackouts and repair challenges. The issue is especially pressing in Virginia, where data centers are projected to use as much as 57% of the state’s electricity by 2030.