Our members have invested several billion dollars in building thermal and renewable power plants in Idaho, Oregon and Washington totaling over 4500 megawatts. IPPs working in the region have an equal amount of capacity permitted or under development.

Calpine Corp.Constellation Exelon


DG Energy Partners / Sun2o



EDF Renewable Energy

EDP Renewables

Invenergy LLC

Morgan Stanley

NewSun Energy

NextEra Energy

NRG Energy

Obsidian Renewables

Perennial Power Holdings, Inc.

Rye Development

Shell Energy North America

Sierra Pacific Industries

TransAlta Energy Marketing, Inc.

Tyr Energy

Associate Members

John Audley Associates

Beveridge & Diamond

Bracewell LLP

Sapere Consulting