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December 14, 2025

Midcontinent Independent System Operator (MISO)

Allgeier Martin
MISO, SPP Hunt for Small Interregional Tx Projects
MISO and SPP this week said they have tentatively settled on criteria and will begin developing a first set of smaller interregional transmission projects.
SPP
SPP Continues its Counterflow Optimization Work
SPP is taking another crack at adding counterflow optimization to the congestion-hedging process following a late-August workshop.
© RTO Insider LLC
MISO, Members Debate Deploying AARs
MISO, its Monitor and members debated the best course to implementing ambient adjusted line ratings during a Sept. 15 Advisory Committee discussion.
© RTO Insider LLC
MISO Executives Spotlight Fleet Evolution Planning, Risks
MISO Board Week focused on the industry shift underway as the RTO plans to get more transmission lines strung to bring record amounts of new capacity online.
© RTO Insider LLC
MISO Board Week Briefs: Sept. 12-15, 2022
Employee churn has MISO tracking its highest-ever rate of resignations and executives debuting a headcount management report.
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Monitor Critiques MISO’s Commitment Usage During Summer
MISO presided over reliable operations at higher prices this summer, with its IMM displeased over how many units the RTO calls up to maintain reliability.
Xcel Energy
MISO’s 2022 Tx Planning Cycle Exceeds $4B
MISO’s 2022 Transmission Expansion Plan now clocks in at 384 new projects, totaling about $4.3 billion.
Connexus Energy
MISO Officially Opens Markets to Storage Resources
MISO has announced that it successfully opened its wholesale markets to electric storage resources in compliance with FERC Order 841.
© RTO Insider LLC
FERC OKs MISO Seasonal Auction, Accreditation
MISO can establish a seasonal capacity auction and accreditation but cannot require a minimum capacity obligation, FERC ruled in a pair of orders.
MLGW
Memphis Says Staying with TVA is Best Option
Memphis Light, Gas & Water's leadership said that a long-term energy contract with TVA is a safer alternative than joining MISO and generating its own power.

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