ColumbiaGrid was formed to improve reliability and the efficient use of the Northwest’s interconnected transmission grid. The organization provides cost-effective transmission planning and expansion; develops and implements solutions relating to the use and expansion of the transmission system in the Northwest; and supports effective market monitoring within the Northwest and the Western Interconnection. In carrying out its mission, ColumbiaGrid strives to provide sustainable benefits for its members and participants, their customers, and the region as a whole.

ColumbiaGrid's processes are transparent and open to all interested persons. We value broad participation and interaction with stakeholders, including customers, transmission providers, states, and tribes, and we provide a non-discriminatory forum for interested persons to receive and bring forward pertinent information concerning the regional interconnected transmission system.

ColumbiaGrid meetings are open to parties outside of members and participants, and all notices, agendas, and meeting materials are posted on this website. Under the terms of the bylaws and functional agreements, we notify affected persons of our activities and encourage their participation.


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