Power Management
Arrowrock Hydroelectric Project
The PUD, along with five
irrigation districts from Idaho and Oregon, have
developed this 18 megawatt hydroelectric project and power
production started in early 2010. The project was added to an
existing dam and no new impoundments were required. Existing water
releases will generate the electricity through the two- 9 megawatt
turbines. The project will benefit large numbers of Idaho farmers
and water users by helping offset the operating costs of their
increasingly expensive water delivery system. No negative
environmental impact was found as a result of this retrofit to the
Arrowrock Dam. Clatskanie PUD committed to this project as a way
to acquire new, clean renewable resources to meet future electrical load
growth, particularly for local business and industry. Clatskanie
PUD will be purchasing all of the power generation from the project.
Read the feature
cover story on the project in the NWPPA Bulletin Magazine
click here
Ribbon Cutting Ceremony video March 23, 2010, Courtesy of the Idaho
Statesman click here
Jan. 26, 2010 - Video of Testing of Unit #1
Video
1Video
2
Jan. 28, 2010 - Video of Unit #1
synchronized with Idaho Power System
and load rejection test successfulVideo
3
Past Press Releases on the project:
March 30, 2010
March 15, 2010
September 2, 2009
July 21, 2009
February 23, 2009
November 6, 2008
October 16, 2008
August 11, 2008
Arrowrock Photo Gallery
October
2008 - April 2009 Photos
Co-Generation Project
Clatskanie People's Utility District (PUD)
and the Eugene Water and Electric Board (EWEB) constructed a 36-megawatt
(MW) cogeneration facility at the Georgia Pacific Wauna Paper Mill located
along the Columbia River near Clatskanie, Oregon, approximately 75 miles
northwest of Portland. The project was completed and began generating
power for use in the region in mid-1996.
The cogeneration facility generates
electricity directly from process steam currently produced at the Wauna
Mill before that steam is used in the papermaking process. The
cogeneration facility, including a generator and turbine, is constructed
on property leased from Georgia Pacific.
To increase the available amount of
steam, a fluidized bed boiler has also been constructed. This boiler
burns "sludge" - a moist sawdust-like, non-hazardous waste
product of the papermaking process - from the mill, which is, currently
land filled on site. Natural gas may also be used to occasionally
co-fire the boilers.
The output is to be sold to the
Bonneville Power Administration. Under the terms of the Power Purchase
Agreement for the project, Bonneville will purchase the project output
over a 20 year period at a fixed rate on a "take and pay" or
output basis. Prior to agreeing to purchase the output, Bonneville
completed an Environmental Assessment for the project with a Finding of
No Significant Impact.
The project is directly connected to the
Bonneville electric transmission system at the Wauna Mill. As a result,
there was no need to build transmission facilities for the project nor
is there any cost of transmission.
Georgia Pacific, the PUD and EWEB have
executed a variety of construction, operation and maintenance agreements
for the project. Under the terms of those agreements, Georgia Pacific served
as the project construction manager for the two utilities, and now that
the generator is in service, Georgia Pacific will also operate and maintain
the facility. The various agreements also include definition of roles
and responsibilities for such things as; sale of steam from the existing
boilers, delivery of sludge to the fluidized bed boiler, and the site
lease.
