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Pachwáywit Fields (FKA Montague Solar Facility) is an operating solar photovoltaic energy generation facility with a peak generating capacity of 162 MWac that occupies 1,189 acres (1.9 square miles) of Exclusive Farm Use zoned land in Gilliam County.

Operating. Commercial operation of the facility commenced on April 25, 2023.

​On May 27, 2021, the certificate holder submitted information to the Department related to a change in the local economic benefits realized from development of the Montague Solar Facility. On May 4, 2023, the Department, in consultation with Gilliam County representatives, analyzed the changes and determined they do not require an amendment to the site certificate. The certificate holders submitted additional information, as well as the analysis of the Department, in consultation with Gilliam County representatives, which is posted in the project timeline below. The determination will be announced at the next regularly-scheduled Council meeting.​

​Gilliam County. PDF Map  | Online Map

Applicant/Certificate holder: Montague Solar, LLC, a wholly owned subsidiary of Avangrid Renewables, LLC, the U.S. division of parent company Iberdrola, S.A.
Applicant/Certificate holder contact: Amy Parsons
ODOE contact: Duane Kilsdonk

On September 25, 2020, the Energy Facility Siting Council approved Request for Amendment 5 of the Montague Wind Power Facility site certificate, which authorized allocation of previously approved facility components into an amended and two original site certificates for Montague Wind Power Facility​, Montague Solar Facility and Oregon Trail Solar Facility, respectively. The documentation for the original project can be found on the Montague Wind Power Facility webpage.

  • Click ​here to view a diagram of the Site Certificate history.​​

Project Timeline

Additional Documents



​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