A detailed justification and information on consultation with the affected cooperating agencies and project sponsor are included in Commission staff’s request for Executive Director determination submitted to FPISC-OED via email. Because the Commission’s milestone target dates, including those for issuance of the draft and final NEPA documents, are being modified to account for the additional time needed for the project sponsor to complete required studies, dependent milestone target dates are being modified accordingly.
Cooperating under NEPA
Milestones:
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
12/18/2026
ENVIRONMENTAL REVIEW AND PERMITTING PROCESSES
COMPLETED
SECTOR
Renewable Energy Production
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 primarily be located on Bureau of Land Management lands.
Original Target Date: 07/21/2025
Milestone: Final decision/agency action (Agency Action)
Requested extensions greater than 30 days for this Action are shown below:
Final decision/agency action (Agency Action) extended by 212
From: 07/21/2025
To: 02/18/2026