PJM Interconnection’s latest capacity auction for the 2028-2029 delivery year cleared at the maximum allowed price of $325 per megawatt-day across its footprint, underscoring mounting pressure on the nation’s largest power grid. The result had been widely anticipated, but it still signals tightening supply conditions and a growing gap in reserve margins.
Capacity auctions are meant to secure enough future power resources to keep the grid reliable during periods of heavy demand. Hitting the cap across the region suggests the market is under significant strain, with available resources not keeping pace with projected needs. That dynamic can raise concerns for utilities, generators and customers watching long-term electricity costs.
The outcome also renewed criticism of PJM’s current capacity market structure. Aurora Energy’s Julia Hoos said the results show the system is not effectively encouraging the new generation and demand response resources the region needs most. Her warning about an "intervention doom loop" points to broader industry concern that repeated fixes and constraints may be distorting price signals without solving the underlying supply challenge.
The auction result is likely to intensify debate over how PJM and regulators should address reliability and investment incentives. With reserve shortfalls growing, the focus is shifting to whether market reforms can bring new capacity online fast enough and better reward demand-side participation before supply pressures become even more acute.
