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Oregon Department of Energy

Pachwáywit Fields (FKA Montague Solar Facility)

Pachwáywit Fields (FKA Montague Solar Facility) is an operating solar photovoltaic power 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.​

The certificate holder's 2025 Wildlife Monitoring results are provided in the Project Timeline below. In accordance with a requirement of the Wildlife Monitoring and Mitigation Plan (Site Certificate Condition 91), the Department has posted these results for public review and is accepting comments on the 2025 Wildlife Monitoring results through July 12, 2026. Please submit comments to Kellen Tardaewether at Kellen.Tardaewether@energy.oregon.gov.​

​Gilliam County. PDF Map  | Online Map​

Applicant/Certificate holder: Montague Solar, LLC, a wholly owned subsidiary of Avangrid Power, LLC, the U.S. division of parent company Iberdrola, S.A.
ODOE contact: Kellen Tardaewether
Applicant/Certificate holder contact: Matt Stelmach

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

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Additional Documents
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<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2020-09-25-MSF-Site-Certificate.pdf'>Site Certificate on Amendment 5 - MSF</a></div>
09/25/2020/energy/facilities/Facilities%20library/2020-09-25-MSF-Site-Certificate.pdfSite Certificate on Amendment 5 - MSFSite Certificate on Amendment 5 - MSF
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2021-05-27-MSF-OPS-Cert-Holder-Addl-Info-On-Economic-Changes.pdf'>Additional Information from Certificate Holder (Local Economic Benefit-Incentives)</a></div>
05/27/2021/energy/facilities/Facilities%20library/2021-05-27-MSF-OPS-Cert-Holder-Addl-Info-On-Economic-Changes.pdfAdditional Information from Certificate Holder (Local Economic Benefit-Incentives)Additional Information from Certificate Holder (Local Economic Benefit-Incentives)
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2023-05-04-MSF-OPS-ODOE-Evaluation-of-Econ-Benefit-Changes.pdf'>Response to Additional Information (Local Economic Benefit-Incentives)</a></div>
05/04/2023/energy/facilities/Facilities%20library/2023-05-04-MSF-OPS-ODOE-Evaluation-of-Econ-Benefit-Changes.pdfResponse to Additional Information (Local Economic Benefit-Incentives)Response to Additional Information (Local Economic Benefit-Incentives)
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2025-07-18-MSFOPS-2025-Staff-Memo-2024-Annual-Wildlife-Monitoring.pdf'>2024 Wildlife Monitoring Report</a></div>
07/18/2025/energy/facilities/Facilities%20library/2025-07-18-MSFOPS-2025-Staff-Memo-2024-Annual-Wildlife-Monitoring.pdf2024 Wildlife Monitoring Report2024 Wildlife Monitoring Report
<div style='text-align:left !important'><a href='/energy/facilities/Facilities%20library/2026-06-09-MSFOPS-2025-Wildlife-Monitoring-Report.pdf'>2025 Wildlife Monitoring Report</a></div>
06/12/2026/energy/facilities/Facilities%20library/2026-06-09-MSFOPS-2025-Wildlife-Monitoring-Report.pdf2025 Wildlife Monitoring Report2025 Wildlife Monitoring Report



Contact the Facility Siting Team: