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MISO Transmission Expansion Plan

The annual MISO Transmission Expansion Plan (MTEP) evaluates and approves transmission-owner submitted projects based on multiple planning criteria. The MTEP process has resulted in more than $30 billion in projects since 2003, in the general categories of generator interconnection, reliability, load growth and general maintenance. The approved projects, as a whole, build an electric infrastructure to meet local and regional reliability standards; enable competition among wholesale capacity and energy suppliers in the MISO markets; and allow for competition among transmission developers. Each December, MISO presents the MTEP report to its Board of Directors for approval.

The New MTEP Planning Portal - Launching Oct. 17th, 2023

The MISO Project Portal is moving to a new platform which you may know as the MISO Help Center. This new portal will provide a robust user-friendly experience that will support the submission and management of MTEP projects throughout their lifecycle while enabling the integration capabilities for future MISO technologies.

MTEP Planning is hosting an Open Office Hours session Oct 20th 10:00-11:00 AM and is posted on the MISO Public Calendar.
Based on customer feedback and need, additional Open Office Hour session(s) may be scheduled.

Appointment only 1:1 Office Hours are available after Go-Live through January for additional support. Transmission Owners can reach out to their MISO Expansion Planner representative with questions or concerns and request an appointment as needed.

Project Status Report

Training Workshop 1 - June 16

Training Workshop 2 - July 14

Training Workshop 3 - August 18

Knowledge  Articles:

Guiding Principles

  1. Develop transmission plans that will ensure a reliable and resilient transmission system that can respond to the operational needs of the MISO region.
  2. Make the benefits of an economically efficient electricity market available to customers by identifying solutions to transmission issues that are informed by near-term and long-range needs and provide reliable access to electricity at the lowest total electric system cost.
  3. Support federal, state, and local energy policy and member goals by planning for access to a changing resource mix.
  4. Provide an appropriate cost allocation mechanism that ensures that costs of transmission projects are allocated in a manner roughly commensurate with the projected benefits of those projects.
  5. Analyze system scenarios and make the results available to federal, state, and local energy policy makers and other stakeholders to provide context and to inform choices.
  6. Coordinate planning processes with neighbors and work to eliminate barriers to reliable and efficient operations.

Appendix A of the MTEP Report comprises the transmission projects recommended to MISO's Board of Directors for review and approval.