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December 5, 2025

reliability must-run (RMR)

© RTO Insider 
PJM MIC Briefs: Oct. 9, 2025
The PJM Market Implementation Committee endorsed a package of revisions to Manual 18.
Constellation
Clean Energy Groups Seek Rehearing on DOE Resource Adequacy Report
Three clean energy trade groups asked DOE to reconsider its recent report on resource adequacy, which they contend uses a deterministic approach to stake out a position for not retiring any more power plants in the face of rising electricity demand.
Acroterion, CC BY-SA-4.0, via Wikimedia Commons
DOE Lifts Run Hour Restrictions on Maryland Generator
The Department of Energy issued an emergency order to lift annual run-hour restrictions on the H.A. Wagner Generating Station Unit 4 located outside of Baltimore to address a shortage of generation in PJM.
ERCOT
Vegas: ERCOT Grid ‘Strong’ Heading into Summer
ERCOT CEO Pablo Vegas declared the state of the Texas grid to be "strong" as it heads into a summer where it expects a record peak demand.
Admin Monitor
ERCOT: Agreement Reached to Use Mobile Generators

ERCOT has told Texas regulators that it has reached an agreement with LifeCycle Power that clears the way for 15 mobile generators to be relocated from Houston to San Antonio to provide additional capacity.

Talen Energy
FERC Approves $180M Annually for RMR Deals with Brandon Shores and Wagner Plants
FERC approved settlements on reliability must run deals that will keep the Brandon Shores Generating Station and the H.A. Wagner Generating Station in Maryland running until May 31, 2029.
Admin Monitor
Texas PUC Approves 765-kV Transmission Option for Permian Basin
The Texas Public Utility Commission approved a plan that allows ERCOT to authorize the region’s first extra-high-voltage transmission lines and meet the petroleum-rich Permian Basin’s rapidly growing power needs. 
ERCOT
ERCOT Board of Directors Briefs: April 7-8, 2025
ERCOT’s plans to continue running a 55-year-old San Antonio gas plant scheduled for retirement are being endangered by "pretty significant findings" that increase costs and delay the schedule.
ERCOT
ERCOT Board OKs Mobile Generators in San Antonio
ERCOT’s Board of Directors has approved staff’s recommendation to pursue the use of 15 mobile generators as an alternative to extending the life of two aging gas units slated for retirement in South Texas.
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FERC OKs Changes to PJM Capacity Market to Cushion Consumer Impacts
FERC approved a suite of changes to PJM's next couple of capacity auctions, which are meant to mitigate billing impacts as the supply-demand dynamic in the region tightens and longer-term reforms are pursued.

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