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​2019 Planning Cycle

​Transmission Services conducts system planning meetings in accordance with its Open Access Transmission Tariff Attachment K. These meetings provide customers and interested parties the opportunity to discuss and provide input to the studies and development of the plans of service.
This page provides information about the Transmission Services Attachment K process including notifications of meetings, results of planning studies, plans of service and other reference information. To request participation in the Planning Process, complete and email the Participation Request form.


November 21, 2019

Attachment K Planning Meeting II Presentation

March 21, 2019

Planning Meeting I 2019

Economic Studies
To request an Economic Study, fill out the Economic Study Request Form.   

Reference Information
2019 Transmission Plan (December 2019)
2019 System Assessment Summary (August 2019)
2019 System Assessment Assumptions and Methodology

​Related Links
FERC Order 1000
FERC Order 890
NERC Reliability Standards
Open Access Transmission Tariff (includes Attachment K)
Planning Studies
WECC Reliability Criteria