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June 18, 2025

NYISO Installed Capacity/Market Issues Working Group (ICAP-MIWG)

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NYISO Monitor Proposes Changing Congestion Rent Assignments

The NYISO Market Monitoring Unit is proposing to revise the ISO’s net congestion rent assignment process by allocating residuals to transmission owners on an individual facility basis.

Potomac Economics
MMU, FTI Argue for Maintaining Uniform Pricing in NYISO Capacity Market

As NYISO conducts its Capacity Market Structure Review, its Market Monitoring Unit and FTI Consulting say it should reject the idea of bifurcated pricing.

NextEra Energy
NYISO Outlines Storage as Transmission Proposal

NYISO presented an outline of how it plans to implement storage-as-transmission assets, drawing critiques from stakeholders representing end-use customers and generators.

Danskammer Energy
Stakeholders Urge NYISO to Change Performance Penalty Proposal
Stakeholders expressed confusion and concern with the most recent updates to NYISO’s operating reserves performance penalty proposal.
Z22, CC-BY-SA 4.0, via Wikimedia Commons
NYISO Monitor Analyzing Alternative Capacity Market Designs
The NYISO Market Monitoring Unit told stakeholders it is independently analyzing the capacity market in parallel with the ISO’s ongoing Capacity Market Structure Review project.
NYISO
NYISO Details Proposed Metrics for IDing Poor Performers in Reserve Market
NYISO has proposed the metrics for identifying operating reserve suppliers that consistently underperform as part of its plan to remove them from the market.
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Firm Fuel Proposal Continues to Confuse NYISO Stakeholders
NYISO returned to the Installed Capacity Working Group with more modifications to the tariff language and general structure of its firm fuel capacity accreditation proposal, but stakeholders still appear to be skeptical of it.
Potomac Economics
NYISO’s Firm Fuel Proposal Criticized by Market Monitor
NYISO's market monitor says the firm fuel capacity accreditation proposal would incentivize generators to rely on inferior types of firm fuel service that could undermine the winter reliability benefits of firming up.
HDR Inc.
Demand Curve Reset Tops NYISO Priorities in Capacity Market Review
NYISO presented the Installed Capacity Working Group with its priorities for the Capacity Market Structure Review, with improving the demand curve reset process and methodology topping the list.
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NYISO Business Issues Committee OKs Firm Fuel Accreditation Concept
The NYISO Business Issues Committee approved, in concept, implementation of the ISO’s new firm fuel election process and requirements as part of its changes to capacity accreditation.

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