Habitat and Communities: Wave, Tidal, and Offshore Wind Energy
- Why the Council is Interested in Wave Energy
- Wave Energy in the U.S. and Around the World
- Federal Permitting and Licensing
- Ocean Energy Technologies
- Currently Proposed Projects
- More Resources
Between around 2005 and 2012, interest in renewable energy (including wave, tidal, and offshore wind energy) surged on the West Coast, driven by efforts to develop energy alternatives in order to reduce fossil fuel consumption, oil imports, and carbon emissions. The “great recession,” along with confusion about the future of marine spatial planning, led to a decrease in the number of active project applications, and many applications were abandoned. There are currently just a few offshore energy projects being considered off the West Coast.
Wave energy is believed to have great potential in terms of energy production. The World Energy Council has estimated that the technical potential of ocean wave energy is more than 2 Terrawatts (1 TW = 1 million megawatts), or about two-thirds the current world wide energy demand. However, production potential has been limited by the technological challenge of generating energy in a harsh ocean environment, by a lack of knowledge about wave energy’s environmental impacts, and by the slow pace of efforts to determine which areas are most suitable for ocean energy projects. At the same time, hydrokinetic technology is constantly developing, with potential new technologies being announced seemingly every few months.
Although hydrokinetic projects are in place around the world, there are no actual projects in place yet on the West Coast. Many early efforts to place projects in West Coast waters were abandoned due to lack of funding or for other reasons. Wave energy development is being promoted by universities (most notably Oregon State University and the University of Washington); by the Federal government (the Energy Policy Act of 2005 promotes renewable energy and recognizes ocean energy as a field with significant potential); and by state and municipal governments.
The Council is tracking wave energy projects off the West Coast because of their potential impacts on fish, fisheries, and fish habitat. Some important questions for any wave energy project include (for example):
- How will the project site be chosen?
- How will the project respond to local community and fishing industry concerns?
- How will data on environmental, fisheries, and social impacts be gathered?
- How will the projects be monitored?
- How will management of the project respond to changing conditions?
- How will projects be installed, maintained, and removed?
- What are the cumulative impacts of multiple hydrokinetic projects along the coast?
- What are the electromagnetic, acoustic, and visual impacts of wave energy projects, and how will they affect the marine environment?
- How will the projects influence marine species abundance and behavior?
- Will collisions and entrapment of marine mammals occur?
- How might habitat be altered by the anchors and cables associated with the project?
- Will toxins and chemicals be released by the project or by vessels servicing the project?
Since this technology is new to the Pacific coast, a great deal of information still needs to be gathered on its environmental, biological, and fisheries impacts.
Europe leads the world in wave energy development. Projects are planned, or are in place, in Denmark, Wales, Portugal, Spain, Scotland, and Ireland. Elsewhere, projects are installed (or are being installed) in Australia, Nova Scotia, South Africa, and China; and research on wave energy is being conducted in the South Pacific, India, Indonesia, Japan, and in other countries.
The first federally licensed in-stream hydrokinetic power project in the U.S. began operating commercially on August 20, 2009 on the Mississippi River in Hastings, Minnesota. The Hastings project, an in-stream turbine from Hydro Green Energy, captures the flow from the output channel of an existing hydropower dam. In addition, a 10 megawatt (MW) “distributed generation” tidal project was installed in New York’s East River, and a similar project has been installed in Massachusetts’ Merrimack River. Offshore, two experimental projects have been put in place. In Kaneohe Bay, Hawaii, the U.S. Navy installed a PowerBuoy off the coast of Oahu in 2004-2005. In New Jersey, a PowerBuoy was installed for testing off Atlantic City in 2005.
Many other projects have been proposed and are working they way through the FERC permitting process.
The Federal Energy Regulatory Commission (FERC) is responsible for approving hydrokinetic projects (that are connected to the power grid) in state waters. The Bureau of Ocean Energy Management (BOEM) is responsible for projects on the outer continental shelf (in Federal waters). In addition, many local agencies – on the state, county, and municipal level – may also have permitting requirements.
Projects in state waters
FERC has two different processes for obtaining hydrokinetic licenses. For both, a preliminary permit serves as a placeholder, preventing other companies from proposing projects in exactly the same location. A preliminary permit does not allow any actual technology to be put in place; instead, it allows the applicant to conduct studies in support of developing a project. From there, the two licensing methods diverge.
The pilot project licensing process is designed to expedite the development of hydrokinetic projects. The goal of the pilot process is to allow developers to test new hydrokinetic technologies, to determine appropriate siting of these technologies, and to confirm their environmental effects, while maintaining FERC oversight and agency input. The process completes licensing in as few as six months to allow for project installation, operation, and environmental testing as soon as possible. Projects eligible to use this process are of limited size, are removable or able to shut down on short notice, and are not located in waters with sensitive designations.
Pilot projects are limited to 5 MW or less, and licenses are granted for five years. Under this process, the applicant files a notice of intent to pursue the pilot licensing process; consults with agencies and tribes; and files a license application. FERC issues a biological assessment; agencies and others comment on the application; and FERC issues an environmental assessment. This process is designed to take as little as six or seven months. So far, no projects have been granted a pilot project license, though several have notified FERC that they wish to pursue this route. This process has been criticized for not allowing enough time for the required studies, and for public and agency involvement (see Council letter to FERC).
The FERC licensing process is based on the licensing process for a traditional hydroelectric project, such as a dam. The process involves a high level of public comment and agency involvement, and can take several years. Licenses are for 30- to 50-year terms. Applicants must submit a preliminary application document (PAD), conduct scoping under the National Environmental Policy Act (NEPA), and issue an environmental assessment or final environmental impact statement (EIS) before a license is granted. A license allows the actual installation of a project (providing other related permits are obtained). Only the Makah Bay project, a one-kilowatt pilot project, has been granted a license, but the project is now defunct.
Projects on the Outer Continental Shelf (Federal waters)
The process for projects in Federal waters is considerably more complicated than for projects in state waters. In August 2009, FERC and the Minerals Management Service (which later became BOEM and other agencies) clarified the rules for applying for a license on the outer continental shelf (OCS). (For agency purposes, the OCS equals Federal waters). BOEM has jurisdiction to issue leases on the OCS for hydrokinetic projects, and FERC has jurisdiction to issue licenses for these same projects. Leases are generally for 25 years, but may be extended.
In most circumstances, projects must apply for a lease from BOEM and a license from FERC in order to operate a project in Federal waters. However, some small, short-term experimental projects can operate in Federal waters without a license from FERC. Such projects cannot be connected to the electrical grid.
BOEM offers both commercial leases and limited leases. Commercial leases are required for projects that required FERC licensing. Limited leases are available for smaller, short-term experimental projects.
In order to apply for a lease, applicants can either wait for BOEM to publish a “request for interest” (similar to a request for proposals) for a particular area of the OCS, or submit a request for a lease in a particular area. If BOEM determines that there is no competition for the same site, the applicant must submit a site assessment plan (SAP) within 60 days that describes the proposed activities and supplies environmental information. If there is competition for the same site, applicants must bid for a lease. Once a lease is secured, applicants must begin the FERC licensing process. The timing for beginning the FERC process depends on whether or not there is competitive interest in the lease.
If there is competitive interest in an area, it should take 2 to 2.5 years to complete the BOEM leasing process, including consultations and environmental reviews. If there is no competitive interest, BOEM anticipates it will take 1 to 2 years to issue a lease, depending on the complexity of the activities proposed. FERC anticipates being able to issue a traditional license 1-2 years after a complete hydrokinetic license application is filed. Pilot project licenses may be issued more quickly.
The Council has written many letters to FERC, the Minerals Management Service, and BOEM, commenting on specific projects and on ocean energy projects in general.
Principle Power Offshore Wind Project.
This floating wind turbine project, located 18 miles off Coos Bay, Oregon, has received a permit from BOEM. The 30-megawatt project could have five large turbines spinning by the summer of 2017. A Wall Street Journal article notes that “going offshore means there is virtually no size limit to the blades that could be used because each could be assembled close to shore, then towed out to sea—without having to pass through tunnels or under bridges on land.” In May 2014, Principle Power was one of three projects to receive $46.7 million from the Department of Energy to be used over four years for construction and deployment. The Demonstration project is not a commercial project; it would not be authorized to expand beyond the proposed five wind turbines. However, it would sell the power it generates. As of July 2014, BOEM is collecting public comment on the environmental assessment for the project.
In June 2014, BOEM issued a research lease for a facility to test utility-scale wave energy devices in Federal waters off Oregon. The non-competitive lease is for an offshore area, about four nautical miles from Newport, where the Northwest National Marine Renewable Energy Center at Oregon State University proposes to design, build and operate the Pacific Marine Energy Center – South Energy Test Site. Water depths in the area range from 180-230 feet. The project is designed to support up to 20 megawatts of electricity generation which would be transmitted to the mainland grid via a subsea cable.
The Renewable Energy Center submitted a lease request for its wave energy test facility to BOEM in June 2013. On March 24, 2014, BOEM published the “Notice of Potential Research Lease on the Outer Continental Shelf Offshore Oregon, Request for Competitive Interest” in the Federal Register. Information received during the 30-day comment period enabled BOEM to determine that it is appropriate to issue a lease on a non-competitive basis. FERC will work with the Center to prepare environmental documents for the proposed research project. BOEM will be a cooperating agency.
Admiralty Inlet Pilot Tidal Project.
This project is located in Admiralty Inlet, in the northwest part of Puget Sound between the Olympic Peninsula and Whidbey Island. The project will use two 6-meter underwater turbines. While the project will be connected to the grid and produce a modest amount of energy, its primary purpose is to gather data to better inform the viability of commercial tidal energy generation from technical, economic, social, and environmental standpoints. Each turbine is designed to generate 300 kW. The turbines are expected to rotate about 70 percent of the time, producing 244,000 kW hours of energy annually. The two turbines will be placed about half a mile from the Whidbey Island shoreline at a water depth of approximately 190 feet. A great deal of detailed information is available at this link.
M3Wave Project at Camp Rilea.
M3 Wave LLC plans to put a pressure-driven device on the ocean floor near the Oregon National Guard’s Camp Rilea, near Warrenton, Oregon in August or September of 2014. The 30-by-7-foot device would be placed on the ocean floor, about 42 feet below the surface and about a mile offshore. According to an article in the Daily Astorian, the waters off Camp Rilea are prime crabbing grounds, and fishermen have been concerned about wave energy devices interfering with equipment. The device being tested this summer harnesses the pressure of a wave on the ocean floor and does not require a buoy. However, during the testing period, a telemetry or marker buoy could be used. The energy converter is stationary and enclosed airbags inflate and deflate to create electricity. Testing could include deploying fishing gear to see how it interacts with the device. The overall project is at the very beginning of conceptual design; an ongoing study looked at possible cable routes that would go underneath the floor and connect the converter device with equipment at the camp.
The Oregon National Guard has been pursuing the project as a way to further its energy net-zero initiative, a plan for becoming energy independent. Camp Rilea is a training center for armed forces and is also home to the Clatsop County Emergency Operation Center. An Oregon Wave Energy Trust grant and private funds are being used for the project.
A single PowerBuoy (Ocean Power Technologies). Similar technology has been proposed for projects off Coos Bay, and Reedsport, OR; San Luis Obispo, and Mendocino, CA.
An example array of PowerBuoys (Ocean Power Technologies)
AquaBuOY (Finavera); similar technology was proposed for the Makah Bay project.
Underwater turbine (or tidal instream energy conversion (TISEC) device). (Lunar Energy)
Another type of TISEC (Verdant Power)
Examples of WaveGen’s oscillating water column technology (this version used in Scotland); similar technology proposed for jetty in Douglas County, Oregon
The Pelamis wave energy converter, which has been described as “giant orange sausages floating off the coast.” The Pelamis lies perpendicular to the waves, and as each wave passes along its length, segments move up and down in a snake-like motion. Generators convert that motion to electricity. Has been considered for projects off the West Coast.
The WaveDragon, an “overtopping” technology used in Wales (not currently proposed for any West Coast sites)
The WindFloat floating turbine, currently proposed for Principle Power’s project near Tillamook. Each WindFloat turbine is capable of producing 5 mW, as compared to 2.5 mW for terrestrial wind turbines.
- Council database of active and defunct hydrokinetic projects (updated January 29, 2013)
- See Ocean Energy Notes (3/7/2013), a collection of news briefs and links related to ocean energy off the West Coast
- NOAA Powerpoint on hydrokinetic technologies, impacts, monitoring & projects (presented to the Habitat Committee in March 2013) (Keith Kirkendall)
- Tethys, a multi-agency clearinghouse of information on the Environmental Effects of Renewable Energy from the Sea
- NOAA Technical Memorandum (2008) on “Ecological Effects of Wave Energy in the Pacific Northwest” (Boehlert, McMurray, and Tortorici, editors); proceedings a workshop held at the Hatfield Marine Science Center in Newport, Oregon
- Ecological Effects of Wave Energy Development in the Pacific Northwest (a 2007 workshop held at the Hatfield Marine Science Center in Newport, Oregon)
- Oregon Wave Energy Trust
- “Developing Wave Energy in Coastal California: Potential Socioeconomic and Environmental Effects” prepared for the California Energy Commission and California Ocean Protection Council
- Union of Concerned Scientists: How Hydrokinetic Energy Works.