Billing Code 6717-01-P
DEPARTMENT OF ENERGY
Federal Energy Regulatory Commission
[Project No. 15333-000]
Gravity Storage, LLC; Notice of Preliminary Permit Application Accepted for
Filing and Soliciting Comments, Motions to Intervene, and Competing Applications
On November 16, 2023, Gravity Storage, LLC filed an application for a
preliminary permit, pursuant to section 4(f) of the Federal Power Act (FPA), proposing to
study the feasibility of Red Lake Pumped Storage Project (project) to be located in
Mojave county, Arizona. The proposed closed-loop pumped storage project would
occupy federal land managed by the Bureau of Land Management. The sole purpose of a
preliminary permit, if issued, is to grant the permit holder priority to file a license
application during the permit term. A preliminary permit does not authorize the permit
holder to perform any land-disturbing activities or otherwise enter upon lands or waters
owned by others without the owners’ express permission.
The proposed project would consist of the following new facilities: (1) a 3,740foot-long, 200-foot-high rockfill concrete (upper dam 1) and a 3,000-foot-long, 60-foothigh rockfill concrete (upper dam 2), both of which would impound a new 275-acre
upper reservoir with a a total storage capacity of 26,000 acre-feet at a normal maximum
operating elevation of 5,700 feet average above mean sea level (msl); (2) a 4,240-footlong, 160-foot-high rockfill concrete lower dam that would impound a new 273-acre
lower reservoir with a a total storage capacity of 26,000 acre-feet at a normal maximum
operating elevation of 3,400 feet msl; (3) three 15,400-foot-long, 36-foot-diameter
reinforced concrete branch penstocks; (4) six 330-foot-long, 25-foot-diameter steel

turbine penstocks; (5) a 1,200-foot-long, 150-foot-wide and 160-foot-high reinforced
concrete powerhouse containing six turbine-generator units 500 megawatts each with a
total rated capacity of 3,000 megawatts; (6) a 3,100-foot-long reinforced concrete
tailrace; (7) a new 6-mile-long, 500-kilovolt transmission line connecting the powerhouse
to the existing Western Area Power Administration substation; and (8) appurtenant
facilities. The estimated annual power generation at the project would be 13,140
gigawatt-hours.
Applicant Contact: Mr. Dave E. Drips, Manager, Gravity Storage, LLC 10958 E.
Cordova Street Gold Canyon, AZ 85118 Dedrips@msn.com
FERC Contact: Ousmane Sidibe; ousmane.sidibe@ferc.gov.
Deadline for filing comments, motions to intervene, competing applications
(without notices of intent), or notices of intent to file competing applications: 60 days
from the issuance of this notice. Competing applications and notices of intent must meet
the requirements of 18 CFR 4.36.
The Commission’s Office of Public Participation (OPP) supports meaningful
public engagement and participation in Commission proceedings. OPP can help
members of the public, including landowners, environmental justice communities, Tribal
members and others, access publicly available information and navigate Commission
processes. For public inquiries and assistance with making filings such as interventions,
comments, or requests for rehearing, the public is encouraged to contact OPP at
(202) 502-6595 or OPP@ferc.gov.
The Commission strongly encourages electronic filing. Please file comments,
motions to intervene, notices of intent, and competing applications using the

Commission’s eFiling system at https://ferconline.ferc.gov/FERCOnline.aspx.
Commenters can submit brief comments up to 6,000 characters, without prior
registration, using the eComment system at https://ferconline.ferc.gov/QuickComment.
aspx. You must include your name and contact information at the end of your comments.
For assistance, please contact FERC Online Support at FERCOnlineSupport@ferc.gov,
(866) 208-3676 (toll free), or (202) 502-8659 (TTY). In lieu of electronic filing, you may
submit a paper copy. Submissions sent via the U.S. Postal Service must be addressed to:
Kimberly D. Bose, Secretary, Federal Energy Regulatory Commission, 888 First Street
NE, Room 1A, Washington, DC 20426. Submissions sent via any other carrier must be
addressed to: Kimberly D. Bose, Secretary, Federal Energy Regulatory Commission,
12225 Wilkins Avenue, Rockville, Maryland 20852. The first page of any filing should
include docket number P-15333-000.
More information about this project, including a copy of the application, can be
viewed or printed on the "eLibrary" link of Commission's website at
https://elibrary.ferc.gov/eLibrary/search. Enter the docket number (P-15333) in the
docket number field to access the document. For assistance, contact FERC Online
Support.
Dated: June 12, 2024.
Debbie-Anne A. Reese,
Acting Secretary.

[FR Doc. 2024-13394 Filed: 6/17/2024 8:45 am; Publication Date: 6/18/2024]