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December 5, 2025

MISO Transmission Expansion Plan (MTEP)

MISO Members Make 1st Rules on Sectors
The MISO Advisory Committee adopted the first set of standards for creating and joining stakeholder sectors and discussed the coordination of transmission planning.
MISO Foresees Massive Shift to Renewables by 2040
MISO said it foresees hundreds of gigawatts in mostly carbon-free resource additions by 2040, according to its new transmission planning future scenarios.
Hearing Ordered on $154M ATSI Rate Bid
FERC ordered hearing and settlement procedures on ATSI’s request to recover $154 million, including costs related to its move from MISO to PJM in 2011.
CapX2050 Prompts MISO Focus on Midwest Tx
MISO will conduct a more thorough study of transmission capacity needs in the Upper Midwest in response to utilities behind the independent CapX2050 planning study.
MISO Unveils 1st Proposal to Consolidate Tx Planning
MISO proposed requiring upgrades needed by generation projects to reach certain voltage and price levels before they can be tested for cost-sharing eligibility.
Regulators Not Sold on MISO Tx Planning Sync
Some regulators aren’t convinced about merging MISO’s transmission planning with interconnection studies, a move some say could improve cost effectiveness.
Price Tag Rising for MTEP 20
The 2020 MISO Transmission Expansion Plan contains 510 proposed projects at a combined $4.06 billion, the priciest since the RTO's 2011 MVP portfolio.
MISO Floats Ideas on MTEP, Interconnection Coupling
MISO floated ideas on how it could better synchronize the studies supporting its annual transmission planning and generator interconnection queue processes.
MISO Plugs SATOA Plan at FERC Conference
MISO defended its first storage-as-transmission proposal, maintaining the plan is a good interim measure while the RTO designs a permanent approach.
COVID-19, Electrification Stir MISO Futures Debate
MISO presented stakeholders a long-awaited set of planning futures it insists are final despite calls for an additional scenario that models a downturn stemming from the COVID-19 pandemic.

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