Energy Northwest’s first electric power project (Packwood Lake Hydroelectric Project) – started in 1962, and operation began in 1964. Located five miles east of Packwood, Wa, in the Gifford Pinchot National Forest, it has the capacity to produce 27.5 megawatts of electricity.
The project was conceived and designed to be operated with minimal impact on the lake and surrounding area. The power plant structures are limited to a small diversion and intake structure a short distance downstream from the outlet of Packwood Lake. A five-mile underground pipeline carries the water down the mountainside to a powerhouse. The 1,800-foot drop in elevation creates 780 pounds per square inch of pressure at the generator turbine, which produces the electricity.
The PUD pays roughly 14% of the cost of the project, and in return it recieves 14% of the output.
Packwood Hydroelectric Project Stats
Power Production Capability
Lewis PUD’s Share