Global Site

Contact Us

Perennial Power Holdings, Inc.

New York Office
300 Madison Avenue
New York, NY 10017

Texas Office
24 Waterway Avenue
Suite 740
The Woodlands, TX  77380

If you have any questions or would like to learn more about business opportunities with Perennial Power (PPH), please contact us.




Hermiston Generating Plant (HGP) is located in northeastern Oregon, nine miles south of the Columbia River. HGP is a 474 megawatt highly reliable modern natural gas fueled power plant that provides power for nearly 500,000 households in the Pacific Northwest. The plant also provides steam to Lamb-Weston's adjacent potato processing plant.

Hermiston Generating Plant
78145 Westland Road,
Hermiston, OR 97838

Bradley Knight
General Manager