In a striking revelation yesterday, the Organization of PJM States Inc. (OPSI) laid bare significant potential repercussions stemming from the PJM Interconnection’s exclusion of power plants bound by Reliability Must-Run (RMR) contracts from its capacity auctions. According to OPSI, this oversight could burden consumers with an extraordinary $14.5 billion increase in costs during the forthcoming auction, a staggering figure that warrants urgent attention from federal regulators.
Reflecting on the context, PJM’s recent capacity auction in July had already totaled $14.7 billion—a hefty sum to be shouldered by power consumers throughout the sprawling regions of the Mid-Atlantic and Midwest. The omission of Talen Energy’s RMR resources situated in Maryland potentially accounted for approximately $4.3 billion in capacity cost overruns, as indicated by analytical reports from Monitoring Analytics, PJM’s market surveillance entity.
But what exactly is an RMR contract, and why does it matter? When a power plant’s owner signals an intention to retire a unit, PJM conducts a meticulous assessment of how such an action might impact grid reliability. Should PJM ascertain that the shutdown could jeopardize stability, it may engage the plant owner in an RMR contract to prolong the unit’s operational life. Notably, these RMR units are exempt from participating in capacity auctions, which raises critical questions about market integrity and pricing accuracy.
This discontent has set the stage for OPSI’s vocal support of a complaint lodged with the Federal Energy Regulatory Commission (FERC), arguing that PJM’s current practices concerning RMR units warrant prohibition. In a thorough filing, OPSI emphasized that ignoring Talen Energy’s RMR units in the prior auction had unfavorably escalated capacity costs by a staggering $4 to $5 billion.
Yet, the story does not conclude here. OPSI warns that shifts in the demand curve—an evolving variable utilized by PJM to determine capacity pricing mechanisms—could significantly diminish the accuracy of initial cost estimates. Projections suggest an increase of approximately $14.5 billion could actually be a conservative assessment, and if Talen Energy’s RMR units continue to be overlooked, the implications could ripple throughout the upcoming auction slated for early December.
On this ground, OPSI argues for a reevaluation, emphasizing that their assessment should serve as an “approximate, indicative description” of consequences arising from the exclusion of RMR capacities from PJM’s auction supply stack. They urge FERC to recognize the existing capacity market rules as unjust and impractical, arguing they perpetuate price signals that deviate from fundamental market principles.
“OPSI implores the Commission to heed our complaint and mandate a revision of PJM’s capacity market rules,” the organization asserted, stressing the need to formally recognize RMR capacity as available when determining market settlements—potentially necessitating a slight postponement of the upcoming 2026/2027 capacity auction set for December.
In a previous correspondence addressed to PJM’s board, OPSI unequivocally urged the grid operator to confront what it deemed a sequence of critical flaws within its capacity market framework, particularly the exclusion of RMR resources from the auctions themselves.
Historically, however, the PJM board has shown resistance to altering its approach regarding RMR resources, fearing that mandating participation from deactivated plants could distort capacity pricing, thus deterring prospective developers from investing in new generation initiatives.
As discussions unfold, investor confidence, consumer costs, and, above all, grid reliability hang in the balance—an unfolding drama fraught with economic implications for the wider community.

