September 29, 2024

MISO

The Midcontinent Independent System Operator is a regional transmission organization that plans transmission projects, administers wholesale markets for its membership and manages the flow of electricity in Arkansas, Illinois, Indiana, Iowa, Kentucky, Louisiana, Michigan, Minnesota, Mississippi, Missouri, Montana, North Dakota, South Dakota, Texas and Wisconsin. 
Ameren Missouri
MISO Intent on Marginal Accreditation and Requirements Based on Risky Hours
MISO is holding to its plan to enact a widescale marginal capacity accreditation while swapping risky hours for peak load to calculate its reserve margin requirements.
MISO
MISO Members Suggest Improvements After 1st Seasonal Capacity Auction
In the wake of MISO’s first seasonal capacity auction, members have asked the RTO to improve its generator outage rules, preliminary data sharing and the registry tool used to track capacity.
© RTO Insider LLC
MISO FTR Underfunding Hits $60M in Spring, Improvements Coming in 2025
MISO’s Independent Market Monitor reported that the RTO’s financial transmission rights market came up short by more than $60 million this spring.
Entergy
Entergy Regulators Mount Challenge to MISO South Cost Allocation
MISO South regulators publicly opposed a postage stamp cost allocation design, potentially setting the stage for a showdown as MISO prepares for a third long-range transmission portfolio.
MISO and SPP
FERC Clears MISO, SPP’s Affected System Study Improvements
FERC approved changes to MISO and SPP’s affected system study process to allow either RTO to order upgrades of limiting elements on tie lines.
ACEG
Transmission Report Card Grades MISO ‘B,’ Southeast ‘F’
Americans for a Clean Energy Grid gave MISO and CAISO top grades for regional transmission planning and development; PJM and ISO-NE scored poorly.
NextEra Energy
MISO IMM Zeroes in on Tx Congestion in State of the Market Report
MISO’s IMM debuted five new recommendations as part of his annual State of the Market Report, as multiple suggestions were aimed at maximizing transmission utilization by clamping down on wind-related congestion.
MISO and SPP
MISO Stakeholders Request JTIQ Cost Containment Measures
Stakeholders asked for cost containment measures for MISO's and SPP’s Joint Targeted Interconnection Queue portfolio after the RTOs said the cost estimate for the projects nearly doubled.
MISO
MISO Operators Helm Uneventful May
May in MISO proved no trouble for control room operators.
Entergy
MISO Stakeholder Activists Propose Equity Principles
The clean energy organizer for the Alliance for Affordable Energy said there’s a lack of accessibility within MISO for individual ratepayers to make their opinions heard on grid decisions that affect them.

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