Offshore Renewable Energy Installations (OREI)
page is designed to assist developers of Offshore Renewable Energy Installations
(OREI) with the design and planning of these projects in Alaska. The term OREI
is used by the Coast Guard to describe any individual structure or apparatus
placed in the navigable waters of the United States that creates electricity by
using sources other than oil or gas. Examples include wind farms and
such as buoys, wave turbines, or current turbines.
The Coast Guard oversees two aspects of OREI installations:
1. Reviewing the applicant's
Navigation Safety Plan to determine if the
installation will pose potential adverse impacts to the users of the waterway. This is
accomplished by conducting a Risk Assessment. In Alaska, these Risk
Assessments are conducted by the USCG Sector Waterways offices.
USCG Sector Anchorage is responsible for waterways north of Yakutat
including interior river systems.
● USCG Sector Juneau is responsible for waterways south of and
including Yakutat. This includes all of Southeast Alaska to the Canadian
if the installation will require Private Aids to Navigation (PATON).
PATON includes navigation lights and/or
regulatory signs. These are used to warn mariners of the presence of the
USCG District 17 Waterways
Management Branch is responsible for PATON
for the entire state of Alaska. See the PATON page
for more information.
The Coast Guard distributes navigation safety information to the maritime public regarding
OREI in two ways:
Notice to Mariners (BNM) Information is broadcasted on VHF and HF marine
radio frequencies. The Coast Guards VHF coverage is limited on interior
Notice to Mariners (LNM) Information is distributed in a PDF document
available every Wednesday at the
website. Applicants are encouraged to use the weekly LNM to solicit
comments from waterway users on proposed OREI installations.
The Coast Guard, working with in conjunction with NOAA, distributes updates and corrections for
nautical charts. OREIs can be depicted on charts to inform mariners of
their presence. In some cases a Limited Access Area, 33 CFR 165, may
be established in the vicinity of an OREI to prohibit or restrict vessels
from operating near an OREI. The establishment of a Limited Access Area will be
evaluated on a case by case basis.
FERC White Paper addressing Hydrokinetic Pilot Project Licensing
OREI's Potential Navigation Hazards and Mitigation Measures
3. Guidance on the Coast Guard's
roles and responsibilities for Offshore Renewable Energy Installations
(OREI). Navigation and Vessel Inspection
Circular NO. 02-07
For information about OREI PATON
located within the 17th Coast Guard District, contact the PATON Manager.
Commander (dpw) US Coast Guard District 17
PO Box 25517
Juneau, Alaska 99802-5517
Attn: PATON Manager
Phone (907) 463-2272
Fax (907) 462-2273
For information about Risk
Assessments on OREI's located within the 17th Coast Guard District contact
the Sector Waterways office.
US Coast Guard Sector Anchorage
510 L. St. Suite 100
Anchorage, Alaska 99501
Phone (907) 271-6700 option 5
Fax (907) 271-6751
US Coast Guard Sector Juneau
709 W. 9th Street
Juneau, Alaska 99801
Phone (907) 463-2980
Fax (907) 463-2842
Report all discrepancies with marine aids to navigation to the nearest Coast
Sector Anchorage (907) 271-6769
Sector Juneau (907) 463-2980