Triggered missed date from extending Final decision/agency action (Agency Action) within 30 days of its current target date which was 09/17/2026 and extended to 10/21/2027
Description:
The Commission's issuance of a decision on a license application under the Federal Power Act is dependent on the issuance of a final National Environmental Policy Act document, the resolution of consultation under section 7 of the Endangered Species Act and section 106 of the National Historic Preservation Act, and the issuance of a water quality certificate under section 401 of the Clean Water Act. The milestone target dates below are dependent on the project sponsor resolving all application deficiencies, additional information needs, and required studies by October 31, 2024.
Milestones:
-
Environmental Impact Statement (EIS)
:
Official Notice of Availability of a Final EIS published in the FR beginning both the public review period and concurrent CAA Section 309 Review (Agency Action)
- Completed Date: 06/12/2026 -
Section 106 Review
:
Section 106 consultation concluded (Agency Action)
- Completed Date: 08/19/2026 -
Endangered Species Act Consultation (DOI-FWS)
:
ESA Consultation Concludes (Agency Action)
- Completed Date: 02/26/2026
-
Environmental Impact Statement (EIS)
:
Official Notice of Availability of a Final EIS published in the FR beginning both the public review period and concurrent CAA Section 309 Review (Agency Action)
- Completed Date: 06/12/2026 -
Section 106 Review
:
Section 106 consultation concluded (Agency Action)
- Completed Date: 08/19/2026 -
Endangered Species Act Consultation (DOI-FWS)
:
ESA Consultation Concludes (Agency Action)
- Completed Date: 02/26/2026
PROJECT WEBSITE: https://www.seminoepumpedstorage.com
All dates below are specific to the schedule of the Environmental Review and Permitting processes for this project.
ENVIRONMENTAL REVIEW AND PERMITTING STATUS
IN PROGRESS
ESTIMATED COMPLETION DATE OF ENVIRONMENTAL REVIEW AND PERMITTING
11/22/2027
ENVIRONMENTAL REVIEW AND PERMITTING PROCESSES
COMPLETED
SECTOR
Energy Storage
CATEGORY
Project Category
FAST-41 Covered Projects
LEAD AGENCY
Federal Energy Regulatory Commission
View FAST-41 Postings by Agencies
Other Agencies with Actions or Authorizations:
Department of the Interior, Fish and Wildlife Service
Department of the Interior, Bureau of Reclamation
Department of the Army, US Army Corps of Engineers - Regulatory
Department of the Interior, Bureau of Land Management
Description:
The proposed 972-megawatt project would use the Bureau of Reclamation's existing Seminoe Reservoir on the North Platte River in Carbon County, Wyoming, as a lower reservoir and include the construction of a new upper reservoir; two 30-mile-long, 500-kilovolt transmission lines; and other project facilities. The proposed project facilities would be located on Bureau of Land Management and Bureau of Reclamation lands.
Update:
The Executive Director granted Federal Energy Regulatory Commission's request to extend the Section 404 (USACE), ESA (FWS), Lease of Power Privilege (BOR), and Right-of-Way Authorization (BLM) completion dates on July 28, 2023. The Executive Director determination is posted here.
The Executive Director granted Federal Energy Regulatory Commission's request to extend the Section 404 (USACE), ESA (FWS), Lease of Power Privilege (BOR), and Right-of-Way Authorization (BLM) completion dates on September 4, 2024. The Executive Director determination is posted here.
The Executive Director granted Federal Energy Regulatory Commission's request to extend the Section 404 (USACE), ESA (FWS), Lease of Power Privilege (BOR), and Right-of-Way Authorization (BLM) completion dates on July 18, 2025. The Executive Director determination is posted here.
The Executive Director granted Federal Energy Regulatory Commission's request to extend completion dates for the Lease of Power Privilege (BOR) and Section 404 (USACE) actions on July 15, 2026. The Executive Director Determination is posted here.
-
Environmental Impact Statement (EIS)
:
Official Notice of Availability of a Final EIS published in the FR beginning both the public review period and concurrent CAA Section 309 Review (Agency Action)
- Completed Date: 06/12/2026 -
Section 106 Review
:
Section 106 consultation concluded (Agency Action)
- Completed Date: 08/19/2026 -
Endangered Species Act Consultation (DOI-FWS)
:
ESA Consultation Concludes (Agency Action)
- Completed Date: 02/26/2026