PJM Deploys and Accelerates Reliability Backstop Procurement Framework

PJM Deploys and Accelerates Reliability Backstop Procurement Framework

In response to projected capacity shortfalls of 50 GW to 60 GW over the next decade, PJM Interconnection has proposed a landmark Reliability Backstop Procurement (RBP) framework. In a major escalation on May 19, 2026, the PJM Board of Directors officially moved up the planned backstop reliability auction to September 2026—a full year earlier than its originally proposed March 2027 date.

This acceleration came amid intense regulatory pressure, including comments from Federal Energy Regulatory Commission (FERC) Chair Laura Swett, who questioned PJM's timeline and suggested PJM's governance was making it "too big to function."

The Accelerated Backstop Design

The revised RBP framework operates as a compressed, high-stakes procurement mechanism to secure resources for rising data center demand:

• Capacity Targets: Originally designed to secure up to 14.9 GW of new resources by the summer of 2029, the accelerated September 2026 auction is now expected to target roughly 9 GW. This auction will procure capacity to meet any shortfalls remaining after PJM’s upcoming Base Residual Auction (BRA) for the 2028/2029 delivery year (scheduled to begin June 30, 2026).
• Connect and Manage (C&M) Integration: PJM is combining the stakeholder processes for the RBP and its new "Connect and Manage" rules. C&M allows data centers to interconnect under "non-firm" or interruptible terms, meaning they agree to be curtailed by grid operators during peak demand periods or heat waves.
• The Cost-Allocation Vacuum: PJM's Board issued a stark warning to member states that they must "immediately" establish frameworks to assign the costs of this backstop procurement directly to the new data center loads.¹ If states fail to do so, it remains highly unclear how those costs will be allocated, risking a massive cost shift to residential and existing ratepayers.

"After PJM runs the Backstop procurement, if states have not established frameworks to appropriately allocate costs to new data center loads, it is unclear to which customers those costs would be assigned." — PJM Board Letter to Stakeholders, May 19, 2026

Market and Investment Implications

The acceleration of the backstop auction removes some immediate regulatory pressure from FERC but creates a tight turnaround for power developers and state public utility commissions. While over 55 GW of generation has cleared PJM's interconnection queue, developers are waiting for data center contracts and transmission clarity to begin building.

The lack of a clear, unified cost-allocation mechanism across PJM's 13-state footprint remains a significant overhang for the sector, leaving utility stocks volatile as regulators and tech hyperscalers clash over who will pay for the massive capacity additions.