ColumbiaGrid supports, belongs to, and participates in a number of reliability and transmission-related organizations in the West.  Our memberships include:

Western Electricity Coordinating Council (WECC)

    • Planning Coordination Committee (PCC)
        •       Transmission Expansion Planning Policy Committee (TEPPC)
    • Operating Committee (OC)
    • Market interface Committee (MIC)

Northwest Power Pool (NWPP)

    • Operating Committee (OC)
    • Transmission Planning Committee (TPC)
      •      Northwest Transmission Assessment Committee (NTAC)


Member: Seattle City Light      Project: ColumbiaGrid     
Seattle City Light

"ColumbiaGrid plays an important leadership role with the Northwest's public and private utilities and the Bonneville Power Administration. It allows for critical collaboration that benefits all our customers. As a member of Columbia Grid, Seattle receives a direct benefit from working together to address the issues that threaten the safe and reliable operation of our regional electric system in an environmentally sustainable manner."
~~ Jorge Carrasco, Superintendent, Seattle City Light