The Cobscook Bay Tidal Energy Project consists of the following phases:
Phase 1 – A single-device TidGen™ Power System with a rated capacity of 150 kW was secured to a bottom support frame, which was attached to the seafloor. Subsea power and data cables were deployed on the seafloor and connected to the TidGen™ device. Electricity generated by the TidGen™ Power System was delivered by an underwater power cable to an On-shore Station in Lubec, Maine, where it was power-conditioned and connected to the Bangor Hydro Electric Company (BHE) utility grid on September 13, 2012.
Phase 2 – Two additional devices with a rated capacity of 150 kW will be added to form a commercial-scale, multi-device power system. The underwater power and control cables from the turbine devices will be connected to an underwater consolidation box, and a single underwater power and control cable will connect this box to an electrical substation onshore. The complete system will be interconnected to the BHE grid.
The device is located in Cobscook Bay on State of Maine submerged lands, near Eastport and Lubec, Maine, United States.
Current status of the project implementation and future developments:
The installation and start-up of the single-device TidGen™ Power System (Phase 1) is 100% complete. This is first grid-connected marine hydrokinetic project in the Western Hemisphere. It has received a 20-year Power Purchase Agreement from the Maine Public Utilities Commission. Detailed testing and monitoring of the nearby environment, as well as all device components and subsystems and initial operations is ongoing. Engineering enhancements for the multi-device power system has begun.
Expected operation date:
The single-device TidGen™ Power System began operation on September 13, 2012. Completion of the construction, installation, and deployment of the Cobscook Bay Tidal Energy Project is scheduled for late 2013 to early 2014.
- Federal Energy Regulatory Commission, Pilot Project License, P-12711, February 27, 2012 (8 years)
- Maine General Permit, 2012
- NEPA FONSI, 2012
- NOAA/NMFS Incidental Harassment Authorization for pile driving, 2012
- State of Maine Submerged Lands Lease, February 29, 2012
- U.S. Coast Guard approved PATON, 2012
ORPC has designed and is carrying out the following monitoring plans to ascertain the Project’s environmental effects:
- Fisheries and Marine Life Interaction
- Marine Mammals
- Sea and Shore Birds
- Benthic and Biofouling
In addition, as required by ORPC’s FERC License, an Adaptive Management Plan has been implemented that describes and manages the process for evaluating environmental monitoring data and license modifications where appropriate. The Adaptive Management Team is comprised of the jurisdictional federal and state agencies and ORPC.
Federally listed threatened and endangered species with potential to occur in proposed project area (Source: application, as modified by FERC staff).
|Species||Federal Status||State Status|
|Atlantic sturgeon (Gulf of Maine Distinct Population Segment (DPS)) (Acipenser oxyrinchus)||T||N/A|
|Atlantic salmon (Gulf of Maine DPS) (Salmo salar)||E||N/A|
|Leatherback sea turtle (Dermochelys coriacea)||E||E|
|Loggerhead sea turtle (Caretta caretta)||T||E|
|Sei whale (Balaenoptera borealis)||E||E|
|Fin whale (Balaenoptera physalus)||E||E|
|North Atlantic right whale (Eubalaena glacialis)||E||E|
|Humpback whale (Megaptera novaeangliae)||E||E|
E = Federal and/or state listed endangered
T = Federal and/or state listed threatened
P = Proposed for listing under ESA