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December 5, 2025

Independent Market Monitor (IMM)

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MISO Monitor Targets Tx Congestion in State of the Market Report
MISO’s Independent Market Monitor has released four new market improvement recommendations concerning transmission congestion, the Midwest-South transmission link, market-to-market coordination and price settlements after grid devastation.
MISO
MISO to Axe Energy Efficiency from Capacity Market
MISO said it no longer will recognize energy efficiency as a capacity resource beginning with the 2026/27 auction.
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NERC Responds to MISO IMM’s LTRA Criticism

NERC acknowledges it used mismatched data to calculate MISO's risk level in its Long-Term Reliability Assessment and plans to release a revised report soon.

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MISO IMM Contends he Should Have Role in Tx Planning Oversight

The MISO Independent Market Monitor insisted to FERC that MISO’s own rules allow him to assess transmission. Market monitors of other grid operators backed him up.

Potomac Economics
ERCOT ESRs, Solar Production Lessen AS Costs

Energy storage resources and solar capacity helped reduce ancillary services costs and tight system conditions in the ERCOT market during 2024, according to a recent market report.

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MISO IMM Blasts NERC Long-term Assessment, Says RTO in Good RA Spot
MISO Monitor David Patton called NERC’s Long-Term Reliability Assessment inaccurate for labeling the RTO a high-risk area.
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MISO IMM to State Regulators: Good Intentions Behind LRTP Criticism
MISO Independent Market Monitor David Patton addressed the recent controversy surrounding his longstanding criticism of MISO’s latest, $22-billion long-range transmission portfolio at the Organization of MISO States’ Resource Adequacy Summit.
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FERC Approves PJM-Pa. Agreement on Capacity Price Cap, Floor
FERC approved a PJM proposal to limit capacity prices to between $175 and $325/MW-day for the next two Base Residual Auctions, resolving a complaint from Pennsylvania Gov. Josh Shapiro.
Potomac Economics
IMM Praises MISO for Fewer Out-of-market Actions
After years of its Independent Market Monitor critiquing MISO for making too many out-of-market actions to tame congestion, the IMM congratulated the RTO for dramatically reducing such actions.
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PJM Receives 94 Applications for Expedited Interconnection Process
PJM received 94 submissions from generation owners seeking to have new projects or uprates to existing units included in the RTO’s expedited Reliability Resource Initiative interconnection study process.

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