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December 5, 2025

MISO South

MISO
MISO 2025 Tx Expansion Estimate Drops Slightly to $12.4B
The cost estimate for MISO’s 2025 Transmission Expansion Plan has fallen slightly from previous estimates to $12.36 billion.
MISO
MISO on Track to Wrap Summer with 122-GW Peak, Addresses Frequent South Advisories
MISO is poised to close the door on summer with an almost 122-GW peak while issuing several capacity advisories for MISO South.
Louisiana PSC
Louisiana PSC Approves 3 Controversial Gas Plants Ahead of Schedule for Meta Data Center
The Louisiana Public Service Commission voted two months earlier than initially planned to approve 2.3 GW in new Entergy gas plants to supply a new, $10 billion Meta data center.
© RTO Insider 
MISO States Split on FERC Complaint to Unwind $22B Long-range Tx Plan
Members of the Organization of MISO States are divided on whether the organization should register comments in a FERC complaint that could fundamentally change the way MISO can plan its long-view transmission.
© RTO Insider 
MISO Says Public Communication Needs Work After NOLA Load Shed

MISO conceded to its Board of Directors that it should have done more to convey the danger it perceived ahead of the late spring load-shedding event in Greater New Orleans.

New Orleans City Council
NOLA City Council Puts Entergy, MISO in Hot Seat over Outages

Called to the podium by the New Orleans City Council, MISO and Entergy leadership agreed a perfect storm of factors merged to cause the Memorial Day weekend power outages.

MISO
FERC Declines MISO Queue Cap Rehearing Requests

FERC is resolute in its support of MISO’s annual megawatt cap in its generator interconnection queue.

Yes Energy
MISO: New Orleans Area Outages Owed to Scant Gen, Congestion, Heat

MISO has shed light on the reasons behind the May 25 load-shed event in southeast Louisiana, describing a system taxed by early summer heat and rife with congestion and unavailable generation.

© RTO Insider 
State Regulators Weigh Drafting Alternative to MISO Tx Cost Allocation
Regulators of MISO states are mulling whether they should work together to offer up an entirely new cost allocation for the RTO’s long-range transmission projects.
McDermott International
DC Circuit Rejects Entergy Attempt to Save MISO Capacity Obligation Rule
An appeals court has denied Entergy’s repeat attempt to revive a 50% minimum capacity obligation rule for MISO’s load-serving entities, concluding Entergy lacked standing.

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