2018-2019 Regional Planning Cycle

The WestConnect Regional Transmission Planning Cycle (planning cycle) is biennial. The biennial cycle commences in even numbered years, resulting in the development of a Regional Transmission Plan every other year.

During the biennial planning cycle, WestConnect will establish the region’s reliability, economic, and public policy transmission needs. WestConnect will solicit alternatives (transmission or non-transmission alternatives (NTAs)) from WestConnect members and stakeholders to meet the regional needs. WestConnect will evaluate the alternatives submitted to or developed by WestConnect to determine which alternatives meet the region’s needs more efficiently or cost effectively, and will identify those alternatives in the WestConnect Regional Transmission Plan. Those identified alternatives that were submitted for the purposes of cost allocation may go through the cost allocation process if they pass the cost/benefit thresholds established for the relevant category of project (reliability, economic, public policy) and if they are further determined to be eligible for regional cost allocation.

Additional details of the WestConnect Regional Transmission Planning Process can be reviewed in the WestConnect Regional Planning Process Business Practice Manual.


Process Status

Model Development and Regional Needs Assessment:  Complete

Scenario Assessments:  Complete

Study Plan: Complete

Regional Planning Timeline

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Study Plan


Model Development

Model Development Report (.pdf)

  • A Model Development report is being prepared and will be released in early 2019

Identify Regional Needs


  • No regional reliability, economic, or public policy-driven transmission needs have been identified in the 2018-19 planning cycle.
  • Needs Assessment Report (.pdf)
  • The regional scenario assessments have been completed.
       - 2018-19 Scenario Assessment Report (.pdf)

    Project / NTA Submittal Window

    Evaluate and Identify Alternatives

    Allocate Costs

    Regional Transmission Plans