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: Avista Corporation      Project: ColumbiaGrid     
Avista Corporation

"In ColumbiaGrid, we now have the ability to resolve the three fundamental transmission questions: What transmission facilities should be built? Who should build them? Who should pay for them? With ColumbiaGrid's independent staff and process to resolve disputes, we can answer these questions effectively and in a timely fashion to facilitate our region's new resource development needs."
~~ Jeff Schlect, Manager, Transmission Services, Avista