Officials at PacifiCorp, which supplies power to six states, said wind power will be an important part of diversifying energy sources.

CNN: wind turbines

That leaves PacifiCorp and Texas Utilities still in the running.

ECONOMIST: The markets talk

The Klamath river's dams, owned by PacifiCorp, a former subsidiary (remarkably enough) of Scottish Power, date back to 1918, and were built without fish ladders to help salmon returning to their natal waters.

ECONOMIST: Saving the fish of the Klamath river