Study warns PJM reliability could collapse by 2030 under data center growth
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A Pennsylvania PUC study warns PJM reliability could fail by 2030 as data center load grows, worst-case outages over 100 times its planning criterion, a power risk for mission-critical systems.
A study commissioned by the Pennsylvania Public Utility Commission warns that PJM Interconnection could face reliability failures more than 100 times worse than its planning criterion by 2030 if data center load growth continues without intervention. The worst-case modeled scenario projects a loss of load expectation equivalent to more than 13 days per year with loss of load events, compared to PJM’s standard planning criterion of roughly one day in ten years. The finding is a modeled projection commissioned for regulatory review, not an observed operational outcome, and PJM’s own planning and market rules have not yet been changed as a result.
rss · Utility Dive · Sep 15, 14:26
PJM’s Capacity Market and Reliability Standard
PJM Interconnection is the regional transmission organization coordinating wholesale electricity across 13 mid-Atlantic and Midwest states plus the District of Columbia, and it plans resource adequacy to a loss-of-load-expectation standard of one day in ten years. Data center demand growth across this footprint has been straining existing generation and interconnection queues, prompting Pennsylvania’s Public Utility Commission to commission an independent study on whether current supply additions can keep pace with forecast load. The study models multiple scenarios, with the Reference case projecting a 2030 loss-of-load expectation roughly six times the planning criterion and a High Load and Low Supply case implying more than thirteen days of loss-of-load events annually.
What an operator should do
Transmission owners and generation operators within PJM’s footprint should treat this as a signal to stress-test resource adequacy assumptions against accelerated large-load interconnection requests, particularly co-located data center campuses, rather than relying on PJM’s base-case forecasts alone. Planning and regulatory affairs functions should engage with the Pennsylvania PUC proceeding and PJM’s capacity market and large-load interconnection reforms now, since the study’s scenario implies capacity procurement, transmission upgrade queues, and demand-response programs may need to be resized well before 2030. Distribution utilities serving prospective data center customers should reassess load forecasting and interconnection screening criteria to avoid committing capacity that undermines system-wide reliability margins.
Constraints
The study models a worst-case scenario contingent on continued unchecked data center load growth and does not itself trigger regulatory action; translating its findings into enforceable planning changes would require PJM stakeholder process approval, state commission action across multiple jurisdictions, and coordination on large-load interconnection rules that remain unsettled.
References
Tags: #grid reliability, #data center load growth, #PJM, #loss of load expectation, #regulatory study