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 Corporation

Capital Power Corporation

Constellation Energy

Cypress Creek Renewables

EDF Renewable Energy

EDP Renewables

Gridforce Energy Management

Invenergy LLC


Morgan Stanley

National Grid

Obsidian Renewables

Perennial Power Holdings, Inc.

Shell Energy North America

Sierra Pacific Industries

TransAlta Energy Marketing, Inc.

Associate Companies

Bracewell Law, LLP

Cairncross & Hempelmann

Gordon Thomas Honeywell LLP