PJM Interconnection LLC, the largest US grid operator serving 67 million customers across 13 states, is grappling with a significant surge in electricity demand, primarily driven by the artificial intelligence boom and the rapid expansion of data centers. Recent capacity auctions for the June 2028-May 2029 period revealed a shortfall of 6.8 gigawatts, equivalent to almost seven traditional nuclear reactors, necessary to guarantee system reliability during peak demand. This marks the third consecutive auction where PJM failed to secure enough supply commitments, prompting concerns about the system's ability to meet future needs.
Power-hungry data centers have substantially increased supply costs, with the latest auction tying a record high of $16.4 billion to secure power for the year starting June 2028. Notably, data centers accounted for approximately $6.3 billion of that total, according to Joseph Bowring, president of Monitoring Analytics, the grid's independent market monitor. Including previous auctions, the total burden on PJM ratepayers due to data centers approaches $30 billion. The daily cost of payouts reached the price ceiling of $325 per megawatt-day, impacting monthly utility bills. According to Monitoring Analytics, PJM power prices jumped 76% in the first quarter of this year due to rampant data center demand.
Analysts Nicholas Amicucci and Sharon Wang of Evercore ISI noted that the "tightness the auction is meant to price is playing out live," a sentiment reinforced by a recent heat wave that pushed the grid close to its limits and likely surpassed a two-decade-old demand record. The auction's failure to meet reliability targets is deemed "not an acceptable way to go forward" by Joseph Bowring, who suggests a separate auction specifically for data centers to prevent consumers from bearing the extra costs. PJM's CEO, David Mills, described the current situation as "untenable." An emergency auction is scheduled for later this year to address supply shortfalls and aims to shift the burden of increasing power generation to hyperscalers. The Federal Energy Regulatory Commission (FERC) will hold a technical conference on July 23 to discuss reforms to PJM's governance amid criticisms of its handling of the AI demand surge and consumer cost protection.
