Biggest Power Grid Operator Says Data Centers Leave ‘Little Room for Error’
Summary
The largest U.S. power grid operator, PJM Interconnection, says growing electricity use by data centers is making it harder to keep the grid reliable. Their constant power use and changing weather reduce the time available for necessary maintenance, increasing the risk of power shortages.Key Facts
- PJM Interconnection coordinates electricity in 13 states and the District of Columbia.
- Data centers use a large, steady amount of electricity all year, unlike other users whose use changes with the weather.
- Traditional low-demand seasons in spring and fall, used for maintenance, are now less available due to steady data center demand and longer hot or cold weather.
- This situation shrinks reserve power and leaves little margin for mistakes in the grid.
- The Department of Energy issued emergency orders for PJM to reduce blackout risks during high-demand times and maintenance seasons.
- PJM is trying to add more power supply and remove state rules that delay new energy projects.
- The Federal Energy Regulatory Commission blocked a PJM plan that would let new data centers connect without adding new power plants but agreeing to possible power cuts in emergencies.
- PJM wants large users like data centers to help maintain grid reliability by making commitments to support the system.
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