Facilities

The facility is a 650-megawatt natural gas-fired electric generating plant consisting of two units. Unit 1 is a base-load power plant consisting of a combustion turbine generator, one heat recovery steam generator, and one steam turbine. Unit 1 began commercial operation in June 2007. Unit 2 is a non-base-load power plant consisting of 12 reciprocating internal combustion engines. Unit 2 began commercial operation in December 2014.
Operating. On November 22, 2019, the Council approved Request for Amendment 11 to the Port Westward Generating Project site certificate (RFA11), and authorized the Certificate Holder to construct and operate a 4 to 6 megawatt battery energy storage system within the existing facility site boundary. 

Columbia County, 4.5 miles north of Clatskanie. Online Map
Applicant/Certificate holder: Portland General Electric
ODOE contact: Chris Clark
Applicant/Certificate holder contact: Arya Behbehani
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Project Timeline

  
Additional Documents
  
06/21/2001
11/05/2001
11/08/2002
11/08/2002
11/12/2002
12/05/2003
12/16/2003
09/24/2004
10/13/2004
01/28/2005
01/31/2005
05/19/2006
07/11/2006
09/29/2006
10/02/2006
03/27/2009
04/14/2009
03/12/2010
03/12/2010
08/19/2011
09/28/2011
03/15/2013
03/21/2013
08/23/2013
08/28/2013
08/29/2019
11/22/2019
11/22/2019
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​Contact the Facility Siting Team:
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Exhibit Files Reference

  • Exhibit A: Applicant Information 
  • Exhibit B: Project Description
  • Exhibit C: Property Location and Maps
  • Exhibit D: Organizational Information
  • Exhibit E​: Permits Required
  • Exhibit F: Property Ownership 
  • Exhibit G: Materials Analysis
  • Exhibit H: Geology and Soil Stability 
  • Exhibit I: Soils
  • Exhibit J: Wetlands
  • Exhibit K: Land Use
  • Exhibit L: Protected Areas
  • Exhibit M: Financial Analysis
  • Exhibit N​: Non-generating Facility Information
  • Exhibit O: Water Requirements
  • Exhibit P: Fish Wildlife Habitat 
  • Exhibit Q: Threatened and Endangered Plants and Animals
  • Exhibit R: Scenic Aesthetic Values 
  • Exhibit S: Cultural Resources
  • Exhibit T: Recreational Facilities 
  • Exhibit U: Public Services
  • Exhibit V​: Waste Minimization 
  • Exhibit W: Site Restoration
  • Exhibit X: Noise 
  • Exhibit Y: Carbon Dioxide Emissions 
  • Exhibit Z: Cooling Towers  
  • Exhibit AA: EMFs – Electric and Magnetic Fields
  • Exhibit BB: Other Information
  • Exhibit CC: Additional Statutes Rules Ordinances
  • Exhibit DD​: Other Specific Standards