Brownfield & Retired Power Plant Sites in Oregon
15 catalogued brownfield and retired-generation sites in Oregon, listed by former capacity. Each carries an existing utility-scale grid interconnection that a new datacenter load may be able to re-use.
At a glance
What kinds of former sites are in Oregon?
By former use, the list includes 7 hydroelectric, 2 landfill, 2 biomass, 2 Superfund, 1 coal, 1 brownfield. Recorded retirement dates run from February 2007 to January 2024, with 5 retirements in 2015 or later. 12 of 14 sites with a measured distance sit within 2 miles of a transmission substation.
How does Oregon compare with other states?
Oregon ranks 39th of 50 states and DC by number of brownfield and retired-generation sites, out of 2,085 nationally. By recorded capacity (1,000 MW) it ranks 37th, against 289,280 MW across all states. The state also has 2,430 scored datacenter candidate sites, 6 of them classed as brownfield sites, averaging 53.1 on the 0–100 DC Readiness scale.
Where in Oregon are these sites?
- Clackamas County · 2
- Hood River County · 2
- Morrow County · 1
- Klamath County · 1
- Lake County · 1
- Lincoln County · 1
- Lane County · 1
- Deschutes County · 1
All brownfield and retired plant sites in Oregon
| Site | Former use | Capacity | Retired | County |
|---|---|---|---|---|
| Boardman | coal | 642 MW | 2020-10-01 | Morrow |
| Columbia Ridge Landfill | landfill | 100 MW | — | — |
| John C Boyle | hydro | 99 MW | 2024-01-01 | Klamath |
| Columbia Ridge Landfill Phase II | landfill | 50 MW | — | — |
| Lakeview Cogeneration LLC | biomass | 27 MW | — | Lake |
| Bull Run Hydro | hydro | 21 MW | 2008-05-01 | Clackamas |
| Georgia-Pacific Toledo Mill | biomass | 19 MW | 2013-04-01 | Lincoln |
| Faraday | hydro | 17 MW | 2019-05-01 | Clackamas |
| Leaburg | hydro | 16 MW | 2023-01-01 | Lane |
| Powerdale | hydro | 6 MW | 2007-02-01 | Hood River |
| Copper Dam Plant | hydro | 3 MW | 2015-06-01 | Hood River |
| Cline Falls | hydro | 1 MW | 2010-02-01 | Deschutes |
| Corvallis Municipal Airport | superfund | 0 MW | — | — |
| SeQuential Biodiesel Solar | brownfield | 0 MW | — | — |
| Northwest Pipe & Casing/Hall Process Company | superfund | 0 MW | — | — |
Frequently asked questions
How many retired power plants are in Oregon?
GridCensus lists 10 retired power plant sites in Oregon from EIA-860 retirement records. 9 have a recorded retirement date, 5 of them in 2015 or later.
What is the largest retired power plant or brownfield site in Oregon?
Boardman in Boardman is the largest by recorded capacity, at 642.2 MW. It is followed by Columbia Ridge Landfill (100 MW) and John C Boyle (98.7 MW).
Which power plant in Oregon retired most recently?
John C Boyle has the latest recorded retirement date in the state, January 2024, with 98.7 MW of capacity.
Which county in Oregon has the most brownfield and retired plant sites?
Clackamas County has the most, with 2, followed by Hood River County with 2.
How many EPA brownfield sites in Oregon have completed cleanup?
5 of the 5 EPA-tracked sites listed for Oregon are recorded as cleanup complete.
Looking for a specific record? The directory lists every brownfield site, A to Z.
More on Oregon, and states with similar counts
- Datacenter candidate sites in Oregon· 2,430 sites
- Electric substations in Oregon· 554 named
- Brownfield candidate sites nationwide
- Brownfield sites by state
- Brownfield sites in Arkansas· 15 sites
- Brownfield sites in Mississippi· 13 sites
- Brownfield sites in Hawaii· 16 sites
- Brownfield sites in Nebraska· 12 sites
About this data
Source: EIA-860 retired generating units and EPA RE-Powering America's Land contaminated-site records, as published March 6, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Brownfield and retired power plant sites in Oregon”, https://gridcensus.com/brownfield-sites/oregon (data as of March 6, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for brownfield sites in Oregon is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.