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Published: October 26, 2021

Board of Directors Approve ColumbiaGrid's 2020 Biennial Transmission Expansion Plan

At their September 30, 2021 meeting, ColumbiaGrid’s Board of Directors adopted and approved the 2020 Biennial Transmission Expansion Plan (BTEP). The contents of the plan include summaries and conclusions of major activities that occurred during the 2019—2020 biennial planning cycle, such as: the 2019 and 2020 System Assessments; Order 1000 activities (regional and interregional); sensitivity studies; transient stability; economic planning (production cost modeling); geomagnetic disturbances; relay performance during power swings; model validation; Area 40 coordination; and special studies, as needed, to support ColumbiaGrid’s Planning Parties.

The 2020 Biennial Transmission Expansion Plan document is attached below. For more information, please contact Patrick Damiano at [email protected]

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Member: Chelan County PUD      Project: ColumbiaGrid     
Chelan County PUD

"Chelan PUD is a strong supporter of ColumbiaGrid and the work that’s accomplished through the transmission Planning and Expansion Functional Agreement (PEFA). As a result of that process, the mid-C utilities (Chelan, Grant and Douglas PUDs) and Bonneville Power Administration were able to reach an agreement that defined the need for a new transmission line, as well as determine who will construct, own and pay for the facility. Those difficult decisions were made successful through the expert and independent expertise of the ColumbiaGrid staff."
~~ Chad Bowman, Director - Transmission and Compliance