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December 29, 2025

Markets

CAISO
NM Utilities to Pursue More Analysis Before Day-ahead Decision
Despite the recent release of results from a study on the two competing day-ahead markets in the West, two New Mexico utilities said they need to conduct more analysis before they make a choice.
Western Power Trading Forum/Public Generating Pool
Western Market Seams Issues to Differ from East, Study Finds

The study finds dividing CAISO’s EDAM from SPP’s Markets+ would create seams that pose a different set of problems than challenges seen at the boundaries of full RTOs in other parts of the U.S.

© RTO Insider LLC
FERC Orders Change to MISO Order 2222 Compliance Plan
FERC ordered an after-the-fact addendum to MISO’s Order 2222 compliance plan after being alerted to an inconsistency by WPPI Energy.
Ameren Illinois
ICC Staff Demurs on Decision over Ameren’s MISO Membership
Illinois Commerce Commission staff have passed on recommending that Ameren and two smaller Zone 4 utilities depart MISO for PJM.
© RTO Insider LLC
FERC Approves 1st PJM Proposal out of CIFP
FERC approved PJM's proposal to rework several areas of its capacity market centered around aligning how resources’ capacity contributions match up to system risk analysis.
FERC
FERC Releases Latest Version of ISO/RTO Metrics Report
FERC released the latest iteration of its Common Metrics Report on ISO/RTO markets, which evaluates their performance and benefits.
State of Massachusetts
FERC Approves ISO-NE’s Day-Ahead Ancillary Services Initiative
FERC approved ISO-NE’s proposal to create a day-ahead ancillary services market and retire the current Forward Reserve Market, effective March 1, 2025.
© RTO Insider LLC
MISO Crunching Data for 2nd Seasonal Capacity Auction
Key deadlines already have arrived for MISO’s spring capacity auction, while MISO has hiked its planning reserve margin for the 2024/25 planning year.
© RTO Insider LLC
SPP Markets+ Participants Executive Committee Briefs: Jan. 23-24, 2024
Stakeholders have discussed the likelihood that there may be two day-ahead markets in the West, CAISO’s Extended Day-ahead Market and SPP’s Markets+ and/or RTO West.
PJM
PJM: Grid Performed Well During January Winter Storm
PJM said the grid maintained reliability through nearly a week of harsh winter conditions during the winter storm that blanketed much of the nation in mid-January.

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