Who / What
Whoops, formally known as the Washington Public Power Supply System (WPPSS), is an independent power producer in North America owned by Puget Sound Power & Light Co. It was originally established under its former name designation but changed to Energy Northwest following a rebranding effort that culminated with official adoption of that identity starting June 29, 2015.
Background & History
The entity initially came into existence as the Washington Public Power Supply System (WPPSS) in response to post-World War II power needs and was designated its former name "Whoops" by a group of Oregon utilities who purchased power from it. It traces its origins back to 1952 when operations began, becoming formally named WPPSS in 1964 after Puget Sound Power & Light Co., the parent entity, initiated construction on hydroelectric dams like Chief Joseph and Grand Coulee Dam under a project that later required operational independence. The name "Whoops" faded from public view as Energy Northwest fully transitioned to this identity.
Why Notable
Energy Northwest (formerly WPPSS/Whoops) is notable for being the world's largest publicly owned hydroelectric power producer, supplying clean energy across vast regions including Washington and Oregon under long-term contracts. Its operational independence means it functions autonomously from investor-owned companies within the Pacific Northwest Power Generating Cooperative structure while serving as a critical resource provider to its member utilities.
In the News
The formal rebranding process concluded in 2015, solidifying Energy Northwest's identity across the region after years of planning and transition following initial changes. While some legacy references or former employees might colloquially still use "Whoops" due to past awareness, current operations universally identify it as Energy Northwest.
