According to PJM Interconnection, the nation's largest power grid operator failed to secure sufficient supply commitments in its capacity auction for the year beginning June 2028, marking the third consecutive year of such shortfalls. The auction, announced this week, came up 6.8 gigawatts short of the capacity needed to maintain system reliability during peak demand periods. PJM, which oversees the power supply for 67 million customers across 13 states and Washington, DC, cited explosive growth in data center demand as a primary driver of the widening gap between projected needs and available commitments.
The persistent capacity shortfalls underscore the infrastructure challenge facing US electricity markets as artificial intelligence adoption and cloud computing expansion fuel unprecedented demand for power. Data centers, which now represent one of the fastest-growing segments of electricity consumption, have strained the ability of grid operators to plan and secure adequate future supply. The repeated failures to meet procurement targets raise concerns about grid stability and the adequacy of current market mechanisms to attract investment in new generation capacity.
PJM's ongoing supply challenges highlight a broader tension between rapid technology sector growth and the pace of traditional power infrastructure development. Policymakers and grid operators are increasingly scrutinizing whether existing capacity markets and planning mechanisms can adequately address the accelerating shift toward digital infrastructure amid the energy transition.