Susitna power station
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Susitna power station is a power station in the pre-permit stage in Matanuska-Susitna, Alaska, United States. It is also known as Terra Energy Center power plant, West Susitna power plant, Mat-Su power plant.
Location
Table 1: Project-level location details
| Plant name | Location | Coordinates (WGS 84) |
|---|---|---|
| Susitna power station | Matanuska-Susitna, Alaska, United States | 61.781977, -151.661459 (approximate)[1] |
Project Details
Table 2: Unit-level details
| Unit name | Status | Fuel(s) | Capacity (MW) | Technology | Emergency/Backup |
|---|---|---|---|---|---|
| Unit 1 | Pre-permit[2] | coal: unknown, bioenergy: unknown[3][4][1] | 1250[5] | supercritical[2] | False |
Table 3: Unit-level ownership and operator details
| Unit name | Owner | Parent |
|---|---|---|
| Unit 1 | Flatlands Energy Corp [100%][1] | Nova Minerals Ltd [100.0%] |
Project-level coal details
- Coal source(s): domestic
Ownership Tree
This ownership tree is part of the Global Energy Ownership Tracker, a project of Global Energy Monitor.
Background
Flatlands Energy Corp. proposed building a 400 MW coal- and biomass-fired power plant in the Susitna River valley region. The power plant, if built, will serve as one source of carbon emissions for Carbon Capture and Storage (CCS) testing and provide electricity to the Alaska Railbelt region.[6][7]
As of December 2023, Flatlands Energy was "advancing feasibility" of the power plant and would provide a cost share of US$68,736 toward a CCS study (see below).[6]
In February 2024, a feasibility study was published by the University of Alaska Fairbanks Institute of Northern Engineering and the University of North Dakota's Energy & Environmental Research Center. The study assumed that the power station would be built off the West Susitna Access Road near "proven coal reserves" held by Flatlands Energy.[8][9] The feasibility study drew criticism from some commentators who questioned its assumptions about use of the controversial West Susitna Access Road, the estimated costs of fuel and the power plant, and the efficacy of CCS technology.[10][11][9]
In August 2024, Flatlands Energy’s proposed power station was mentioned in a presentation on the Alaska Railbelt Carbon Capture and Storage (ARCCS) Project (see below).[12]
According to reporting from February 2025, an affiliate of Flatlands Energy, Terra Energy Center, would build the carbon capture technology at the proposed coal plant. Terra Energy Center reportedly asked a Matanuska-Susitna Borough assembly to support the company’s application for a grant from the U.S. Department of Energy, which the company planned to submit in July 2025.[13]
As of February 2025, a preliminary cost estimate for the coal plant was US $2.2 billion, while the carbon capture facilities were estimated at US$1.3 billion. The state’s development finance corporation was reportedly considering helping to finance the power station.[13]
In February 2025, Flatlands Energy submitted an application to the Alaska Department of Natural Resources to conduct coal exploration activities in the Susitna Coal Basin.[14]
In March 2026, the U.S. Department of the Interior (DOI) announced that Terra Energy Center had reached a US$1 billion in-principle agreement with Hyundai Heavy Industries Power Systems to purchase large-scale boilers for the proposed coal plant in Alaska. According to a DOI factsheet, the power station was expected to have a capacity of 1,250 MW.[15][16] Reporting from March 2026 indicated that the power station would be a mine-mouth plant using lignite to subbituminous coal.[17]
In June 2026, the U.S. Department of Energy (DOE) allocated US$89 million in funding for Terra Energy Center’s coal plant project. Under the DOE’s “Restoring Reliability: Coal Recommissioning and Modernization” program, Terra Energy Center would “assess the viability” of the proposed 1,250 MW coal plant and CCS system.[18]
Alaska Railbelt Carbon Capture and Storage Project
In November 2023, the U.S. Department of Energy announced a US$9 million cooperative agreement for the Alaska Railbelt Carbon Capture and Storage (ARCCS) project, to be led by researchers at the University of Alaska Fairbanks.[7][19]
The ARCCS project would reportedly "examine the viability of a major carbon “storage complex” in Southcentral Alaska, likely at the mostly-depleted Beluga River gas field west of Anchorage" in the Cook Inlet Basin.[7] CO2 captured from the proposed Susitna power station would be carried in a 60-mile pipeline to Beluga and then injected into a "geologic storage complex." In addition, the CCS project will include a study examining the technical and economic feasibility of capturing CO2 emissions from two gas-fired power plants in the Anchorage area, the George M Sullivan Generation Plant 2 and the Southcentral power project.[6]
Opposition
In March 2026, the mayor of Matanuska-Susitna borough vetoed a resolution that called on the borough assembly to support Terra in attracting customers for the proposed coal plant, including a potential data center. The mayor reportedly argued that the Assembly should “first review the properties involved and determine whether it supports data center development.” The Assembly later voted to override the Mayor’s veto.[20]
Later in March 2026, a member of the Susitna River Coalition expressed concerns that Terra Energy Center aimed to build a coal plant and mine in a “pristine valley” a long distance from necessary infrastructure. In addition, an independent energy analyst in Alaska noted that the coal plant did not appear to have a power purchase agreement, and that it made “little sense” for a data center to depend on a power source that did not yet exist.[17]
Articles and Resources
References
- ↑ 1.0 1.1 1.2 "CARBONSAFE PHASE II PROJECT READINESS - Alaska Railbelt Carbon Capture and Storage (ARCCS) Project" (PDF). University of Alaska Fairbanks. 2023-12. Archived from the original (PDF) on 2024-02-12.
{{cite web}}: Check date values in:|date=(help) - ↑ 2.0 2.1 "Cook Inlet Region Low Carbon Power Generation with Carbon Capture, Transport, and Storage Feasibility Study" (PDF). University of Alaska Fairbanks Institute of Northern Engineering, University of North Dakota’s Energy & Environmental Research Center. 2024-02-28. Archived from the original (PDF) on 2024-04-16.
- ↑ https://www.eenews.net/articles/the-first-us-coal-plant-in-a-decade-is-on-shaky-ground/.
{{cite web}}: Missing or empty|title=(help) - ↑ https://www.gem.wiki/Coal_source_methodology_for_the_Global_Coal_Plant_Tracker.
{{cite web}}: Missing or empty|title=(help) - ↑ "South Korean Groups Backing New 1.25-GW Coal-Fired Power Plant in Alaska". Power. 2026-03-19. Archived from the original on 2026-03-24. Retrieved 2026-07-06.
- ↑ 6.0 6.1 6.2 "CARBONSAFE PHASE II PROJECT READINESS - Alaska Railbelt Carbon Capture and Storage (ARCCS) Project," University of Alaska Fairbanks, December 2023
- ↑ 7.0 7.1 7.2 "Could a new Alaska coal power plant be climate friendly? An $11 million study aims to find out," Anchorage Daily News, December 29, 2023
- ↑ "Cook Inlet Region Low Carbon Power Generation with Carbon Capture, Transport, and Storage Feasibility Study," University of Alaska Fairbanks Institute of Northern Engineering, University of North Dakota's Energy & Environmental Research Center, February 28, 2024
- ↑ 9.0 9.1 "UAF study calls for a coal-fired power plant in Southcentral Alaska," Anchorage Daily News, March 10, 2024
- ↑ "OPINION: Mat-Su coal plant study relies on faulty assumptions," Anchorage Daily News, March 21, 2024
- ↑ "Even subsidies and unproven technology aren’t enough to make West Susitna coal power make sense," Alaska Energy Blog, March 16, 2024
- ↑ “Alaska Railbelt Carbon Capture and Storage (ARCCS) Project,” University of Alaska Fairbanks, August 8, 2024
- ↑ 13.0 13.1 “Company planning 400 Megawatt power plant and coal mine near Skwentna asks support from borough,” Frontiersman, February 5, 2025
- ↑ “Application for Coal Exploration Permit Flatlands Coal Exploration Project,” Online Public Notices, State of Alaska, February 13, 2025
- ↑ “Trump Administration Announces Deals Totaling $56 Billion During Indo-Pacific Energy Security Summit,” U.S. Department of the Interior, archived March 18, 2026
- ↑ “South Korean Groups Backing New 1.25-GW Coal-Fired Power Plant in Alaska,” Power, March 19, 2026
- ↑ 17.0 17.1 “The first US coal plant in a decade is on shaky ground,” E&E News, March 20, 2026
- ↑ “Project Selections for Broad Agency Announcement DE-FOA-0003605, Restoring Reliability: Coal Recommissioning and Modernization (Topic 1),” U.S. Department of Energy, archived June 8, 2026
- ↑ "Biden-Harris Administration Invests $444 Million to Strengthen America’s Infrastructure for Permanent Safe Storage of Carbon Dioxide Pollution," U.S. Department of Energy, November 14, 2023
- ↑ “Assembly overrides veto, advances data center-related partnership,” Alaska Public Media, March 19, 2026
Additional data
To access additional data, including an interactive map of coal-fired power stations, a downloadable dataset, and summary data, please visit the Global Coal Plant Tracker on the Global Energy Monitor website.
