All Programs > Planning and Expansion
Planning and Expansion

Planning and Expansion Projects

Biennial Transmission Expansion Plan

ColumbiaGrid’s planning and expansion agreement calls for preparation of a biennial transmission plan based on the principle of single-utility planning.
Enter Project >>

Joint Requested Service Coordination

The Transmission Planning staff provides support for the OASIS program in developing and implementing common queueing on the ColumbiaGrid OASIS for requests made for transmission and interconnection service.
Enter Project >>

Northwest Area Coordinator (WECC basecase submittals)

ColumbiaGrid serves as the Northwest Area Coordinator. Sub Area Coordinators submit data to ColumbiaGrid. ColumbiaGrid then prepares the Northwest powerflow model to be included in WECC basecases.
Enter Project >>

Regional Planning Coordination

ColumbiaGrid participates in several formal and informal activities to ensure coordination of its transmission planning efforts with entities and groups both inside and outside of its planning footprint.
Enter Project >>

Projects Area Map

Area map of all on-going and future projects within the ColumbiaGrid System
Enter Project >>

Attachment K


Enter Project >>

Wind Integration Study Team

Joint Group with NTTG to facilitate the integration of Renewable Generation into the northwest transmission grid.
Enter Project >>

FERC Order 1000

FERC Order 1000
Enter Project >>