The PJM Interconnection, the U.S.’s largest electrical grid, experienced nearly a twofold increase in prices over the past year, as indicated by a recent report by an independent monitor. The reason? Data centers.
Wholesale electricity prices for one megawatt-hour rose to $136.53 from $77.78 in the previous year. Crain’s Chicago Business initially reported the rise. Monitoring Analytics, the independent watchdog for the PJM grid, attributed the increase to data centers and PJM’s failure to manage their rising demand effectively.
The market monitor was candid, stating, “The price impacts on customers have been very large and are not reversible,” and warned of even larger impacts unless the data center load issues are promptly addressed.
PJM is under criticism for pausing new generating source applications in 2022 due to a backlog, just as data center construction was rising. They recently started accepting new requests, yet electricity demand from data centers continues to surge. PJM’s grid includes Northern Virginia, known for its high concentration of data centers.
The price increase highlights a fundamental issue: the U.S. power grid wasn’t built for the demands of an AI-driven economy, and the gap between supply and industry needs is widening.
Monitoring Analytics indicated that without data centers’ growing demand, “the capacity market would not have seen the same tight supply demand conditions, the same high prices observed.”
It noted that “the current supply of capacity in PJM is not adequate to meet the demand from large data center loads and will not be adequate in the foreseeable future.”
The report criticized PJM’s decision-making transparency and delayed software upgrades, stating, “These upgrades have been delayed by multiple years and have no firm expected implementation date.”
The report follows a PJM Interconnection white paper, which explored the grid’s future. The white paper proposed three future paths, none of which appealed to AEP, a major regional utility, which has threatened to exit the PJM grid.
Monitoring Analytics was also critical of PJM’s white paper, accusing PJM of using the crisis as an excuse to overhaul its power market operation. They stated, “The core elements of the PJM market design remain robust,” indicating that the grid operator mishandled the surge in demand. The solution, it said, “starts with the recognition that the source of the current issues is data center load.” In essence, data centers are the underlying issue.
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