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December 5, 2025

Markets

Potomac Economics
NYISO Monitor Report Highlights Generator Outages During Heat Wave
As NYISO continues its Capacity Market Structure Review, the Market Monitoring Unit used its second-quarter State of the Market report to highlight potential issues with how the ISO forecasts resource availability.
SPP
SPP Names Director to Lead Markets+ Monitoring
SPP named Tim Vigil, chief member relations and strategy officer for Pacific Northwest Generating Cooperative, as director of the Market Monitoring Unit’s office dedicated to Markets+.
California Governor's Office
Newsom Signs Calif. Pathways Bill into Law
California Gov. Gavin Newsom signed into law the bill that will allow CAISO to transition the governance of its markets to an independent “regional organization,” along with five other bills related to energy and emissions.
© RTO Insider
MISO Recounts Tough Summer; Monitor Praises Lack of Emergencies
MISO said 2025 was the most demanding summer since 2012, though it steered the grid with only a single maximum generation event.
Western Maine Energy Storage
Renewables Creating Opportunities for Pumped Hydro in New England
A developer in Maine is evaluating whether pumped storage – one of the oldest generation technologies still used on the New England grid – could play an increased role in the grid of the future.
© RTO Insider
PJM Revises Non-capacity Backed Load Proposal
PJM revised elements of its proposal to create a non-capacity backed load product for large loads as the Critical Issue Fast Path embarks on determining how to address the reliability challenges posed by accelerating data center load growth.
Western Energy
New Challenges Await Pathways After Success in Calif. Legislature
With California passing the bill designed to transition the governance of CAISO’s markets to an independent regional organization, new challenges await the West-Wide Governance Pathways Initiative as the coalition seeks to turn a once-elusive goal into reality.
© RTO Insider 
MISO IMM: Capacity Prices Efficient Despite Yearslong Error
MISO’s Independent Market Monitor said the recently uncovered, eight-year-old repeat error in the RTO’s capacity market that caused a $280 million impact in this year’s auction alone is unfortunate but insisted the resulting prices were efficient.
© RTO Insider
PJM MIC Endorses 2 Quadrennial Review Proposals
The PJM Market Implementation Committee voted to endorse two packages of revisions to key parameters of the capacity market out of six offered by PJM and stakeholders that resulted from the Quadrennial Review.
PJM
PJM Operating Committee Briefs: Sept. 11, 2025
PJM's Operating Committee heard an update on the Aug. 11 load-shedding event in Baltimore, which brought 20 MW offline for about half an hour following equipment failures at the Brandon Shores substation

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