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JENNIFER DART, Westerly News, June 3, 2010

Several groups working on wave energy on the British Columbia coast gathered in Ucluelet this week to discuss developments in the industry and update local projects.

Representatives from the non-profit Ocean Renewable Energy Group (OREG) chaired the community open house, held June 1 at the Ucluelet Community Centre.

Also in attendance were academics, developers, and representatives from all levels of government, including the Yuu-cluth-aht First Nation and the District of Ucluelet.

OREG executive director Chris Campbell said developing the technology to harness energy from the ocean is a “long, slow process,” but Canadian companies are active internationally, “so it’s gradually becoming more and more real.”

The Ucluelet/Tofino area has long been considered an ideal site for an ocean renewable energy project given its coastal location and proximity to the BC Hydro grid.

“Ocean renewable energy is something that’s been making rattling noises for quite a few years in our area,” said Ucluelet mayor Eric Russcher. “It would be a new and different world we live in but an exciting prospect for us all.”

According to information from OREG, preliminary studies indicate the wave energy potential off Canada’s Pacific Coast is equal to approximately half of Canada’s electricity consumption.

There seems to be a new energy behind wave power in recent months, given in part to new advances in technology, and also specifically in B.C. because of the Liberal government’s Clean Energy Act, which has been tabled in the legislature but has yet to be passed.

Jeff Turner from the Ministry of Energy, Mines and Petroleum Resources said the Act is meant to achieve energy efficiency while maintaining low rates, generate employment in the clean energy sector, and reduce greenhouse gas emissions.

While critics of the Act say it gives the province oversight on major projects like the Site C dam on the Peace River and could be mean higher hydro rates, the announcement has helped kick start development in areas like wave energy, where researchers are currently focused on pinpointing potential outputs.

Two wave energy projects are in development on the West Coast; one for the waters off Ucluelet and one in close proximity to the Hesquiaht communities at Hesquiaht Harbour and Hot Springs Cove.

John Gunton of SyncWave Systems Inc. presented his company’s plan for the SyncWave Power Resonator, a buoy class device that would be slack moored in depths of up to 200 metres. Simply put, this device captures energy from the upward and downward motion of the wave. Gunton said the company has provincial and federal funding, but is looking for a $3 million investment to complete its first two phases of development for placement near Hesquiaht Point.

A test resonator placed eight kilometres off Ucluelet in 40 metres of waters in December was collecting data for a period of about one month until a mast on it was destroyed. It was repaired, upgraded and redeployed in late April and a website will be set up by a group called the West Coast Wave Collaboration that is comprised of academics and industry representatives to transmit power data. Local partners in this project include the Ucluth Development Corporation, the District of Ucluelet and Black Rock Resort.

The other technology is a near shore device, placed in depths of 35 to 50 metres. The CETO device is owned by Carnegie Wave Energy of Australia, and was presented by David King at the open house. Seven metre cylinders capture wave energy and pump it to an onshore turbine. A government grant will also assist in the development of this technology.

But Jessica McIvoy of OREG said there are many questions left to be answered including what are the impacts on the ocean environment and sea life of such devices, and in turn how will the devices last in the ocean?

Campbell said an adaptive management approach to the technology seems like the best option to proceed with preliminary work, taking into account “critical indicators” in the natural environment.

Yuu-cluth-aht chief councillor Vi Mundy said she’s interested in these indicators after hearing concerns from her community, from fishers for example: “I’m hearing questions like what kind of impact will there be and what kind of standards have been developed so far [in the wave energy industry].”

But she also noted young people in her community are asking for green development that will provide year round employment.

“It’s really good to see that in young people,” Mundy said.

Anyone with questions about wave technology on the coast is invited to contact OREG at questions@oreg.ca.

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MendoCoastCurrent, October 27, 2009

Editor’s Note: Over the past few weeks there have been numerous Blue Whales showing up dead on the coast of California and a cause of the recent Blue Whale washing up on the Mendocino coast has been the topic of great discussion and mystery here. Actual cause of death has been identified by propeller of a NOAA research ship. Additionally, here’s a new theory based on noise pollution and new research: Blue whales are forced to make more noise to compete with man-made noise pollution like ship sounds and sonar. More specifically: Blue whales increase their ‘singing’ to cope with noise pollution. And: Man-made noise such as ships’ engines has caused hearing loss in whales.

LOUISE GRAY, Telegraph UK, September 23, 2009

Whale-460_980418cIt has also caused other behavioural changes, including forcing the creatures to strand on beaches because they are unable to navigate.

The endangered blue whale uses sonar to navigate, locate prey, avoid predators and communicate.

However in recent years the increasing use of hi-tech sonar by ships, the noise of propellers, seismic surveys, sea-floor drilling, and low-frequency radio transmissions have made oceans noisier.

New research has shown that the whales are having to ‘chatter’ more often and for longer periods to communicate the location of prey and to mate.

Zoologist Lucia Di Iorio, of the University of Zurich, analysed the song of blue whales recorded by microphones during seismic explorations in the St Lawrence estuary off Canada’s north east coast over an eleven day period in August 2004.

“We found that blue whales called consistently more on seismic exploration days than on non-exploration days as well as during periods within a seismic survey day when the sparker was operating,” she said.

“This increase was observed for the discrete, audible calls that are emitted during social encounters and feeding.”

The study, published in Biology Letters, provides the first evidence that blue whales change their calling behaviour when exposed to sounds from seismic surveys.

“This study suggests careful reconsideration of the potential behavioural impacts of even low source level seismic survey sounds on large whales. This is particularly relevant when the species is at high risk of extinction as is the blue whale,” added Dr Di Iorio.

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JAMES RICKMAN, Seeking Alpha, June 8, 2009

wave-ocean-blue-sea-water-white-foam-photoOceans cover more than 70% of the Earth’s surface. As the world’s largest solar collectors, oceans generate thermal energy from the sun. They also produce mechanical energy from the tides and waves. Even though the sun affects all ocean activity, the gravitational pull of the moon primarily drives the tides, and the wind powers the ocean waves.

Wave energy is the capture of the power from waves on the surface of the ocean. It is one of the newer forms of renewable or ‘green’ energy under development, not as advanced as solar energy, fuel cells, wind energy, ethanol, geothermal companies, and flywheels. However, interest in wave energy is increasing and may be the wave of the future in coastal areas according to many sources including the International Energy Agency Implementing Agreement on Ocean Energy Systems (Report 2009).

Although fewer than 12 MW of ocean power capacity has been installed to date worldwide, we find a significant increase of investments reaching over $2 billion for R&D worldwide within the ocean power market including the development of commercial ocean wave power combination wind farms within the next three years.

Tidal turbines are a new technology that can be used in many tidal areas. They are basically wind turbines that can be located anywhere there is strong tidal flow. Because water is about 800 times denser than air, tidal turbines will have to be much sturdier than wind turbines. They will be heavier and more expensive to build but will be able to capture more energy. For example, in the U.S. Pacific Northwest region alone, it’s feasible that wave energy could produce 40–70 kilowatts (kW) per meter (3.3 feet) of western coastline. Renewable energy analysts believe there is enough energy in the ocean waves to provide up to 2 terawatts of electricity.

Companies to Watch in the Developing Wave Power Industry:

Siemens AG (SI) is a joint venture partner of Voith Siemens Hydro Power Generation, a leader in advanced hydro power technology and services, which owns Wavegen, Scotland’s first wave power company. Wavegen’s device is known as an oscillating water column, which is normally sited at the shoreline rather than in open water. A small facility is already connected to the Scottish power grid, and the company is working on another project in Northern Spain.

Ocean Power Technologies, Inc (OPTT) develops proprietary systems that generate electricity through ocean waves. Its PowerBuoy system is used to supply electricity to local and regional electric power grids. Iberdrola hired the company to build and operate a small wave power station off Santona, Spain, and is talking with French oil major Total (TOT) about another wave energy project off the French coast. It is also working on projects in England, Scotland, Hawaii, and Oregon.

Pelamis Wave Power, formerly known as Ocean Power Delivery, is a privately held company which has several owners including various venture capital funds, General Electric Energy (GE) and Norsk Hydro ADR (NHYDY.PK). Pelamis Wave Power is an excellent example of Scottish success in developing groundbreaking technology which may put Scotland at the forefront of Europe’s renewable revolution and create over 18,000 green high wage jobs in Scotland over the next decade. The Pelamis project is also being studied by Chevron (CVX).

Endesa SA ADS (ELEYY.PK) is a Spanish electric utility which is developing, in partnership with Pelamis, the world’s first full scale commercial wave power farm off Aguçadoura, Portugal which powers over 15,000 homes. A second phase of the project is now planned to increase the installed capacity from 2.25MW to 21MW using a further 25 Pelamis machines.

RWE AG ADR (RWEOY.PK) is a German management holding company with six divisions involved in power and energy. It is developing wave power stations in Siadar Bay on the Isle of Lewis off the coast of Scotland.

Australia’s Oceanlinx offers an oscillating wave column design and counts Germany’s largest power generator RWE as an investor. It has multiple projects in Australia and the U.S., as well as South Africa, Mexico, and Britain.

Alstom (AOMFF.PK) has also announced development in the promising but challenging field of capturing energy from waves and tides adding to the further interest from major renewable power developers in this emerging industry.

The U.S. Department of Energy has announced several wave energy developments including a cost-shared value of over $18 million, under the DOE’s competitive solicitation for Advanced Water Power Projects. The projects will advance commercial viability, cost-competitiveness, and market acceptance of new technologies that can harness renewable energy from oceans and rivers. The DOE has selected the following organizations and projects for grant awards:

First Topic Area: Technology Development (Up to $600,000 for up to two years)

Electric Power Research Institute, Inc (EPRI) (Palo Alto, Calif.) Fish-friendly hydropower turbine development & deployment. EPRI will address the additional developmental engineering required to prepare a more efficient and environmentally friendly hydropower turbine for the commercial market and allow it to compete with traditional designs.

Verdant Power Inc. (New York, N.Y.) Improved structure and fabrication of large, high-power kinetic hydropower systems rotors. Verdant will design, analyze, develop for manufacture, fabricate and thoroughly test an improved turbine blade design structure to allow for larger, higher-power and more cost-effective tidal power turbines.

Public Utility District #1 of Snohomish County (SnoPUD) (Everett, Wash.) Puget Sound Tidal Energy In-Water Testing and Development Project. SnoPUD will conduct in-water testing and demonstration of tidal flow technology as a first step toward potential construction of a commercial-scale power plant. The specific goal of this proposal is to complete engineering design and obtain construction approvals for a Puget Sound tidal pilot demonstration plant in the Admiralty Inlet region of the Sound.

Pacific Gas and Electric Company – San Francisco, Calif. WaveConnect Wave Energy In-Water Testing and Development Project. PG&E will complete engineering design, conduct baseline environmental studies, and submit all license construction and operation applications required for a wave energy demonstration plant for the Humboldt WaveConnect site in Northern California.

Concepts ETI, Inc (White River Junction, Vt.) Development and Demonstration of an Ocean Wave Converter (OWC) Power System. Concepts ETI will prepare detailed design, manufacturing and installation drawings of an OWC. They will then manufacture and install the system in Maui, Hawaii.

Lockheed Martin Corporation (LMT) – Manassas, Va., Advanced Composite Ocean Thermal Energy Conversion – “OTEC”, cold water pipe project. Lockheed Martin will validate manufacturing techniques for coldwater pipes critical to OTEC in order to help create a more cost-effective OTEC system.

Second Topic Area, Market Acceleration (Award size: up to $500,000)

Electric Power Research Institute (Palo Alto, Calif.) Wave Energy Resource Assessment and GIS Database for the U.S. EPRI will determine the naturally available resource base and the maximum practicable extractable wave energy resource in the U.S., as well as the annual electrical energy which could be produced by typical wave energy conversion devices from that resource.

Georgia Tech Research Corporation (Atlanta, Ga.) Assessment of Energy Production Potential from Tidal Streams in the U.S. Georgia Tech will utilize an advanced ocean circulation numerical model to predict tidal currents and compute both available and effective power densities for distribution to potential project developers and the general public.

Re Vision Consulting, LLC (Sacramento, Calif.) Best Siting Practices for Marine and Hydrokinetic Technologies With Respect to Environmental and Navigational Impacts. Re Vision will establish baseline, technology-based scenarios to identify potential concerns in the siting of marine and hydrokinetic energy devices, and to provide information and data to industry and regulators.

Pacific Energy Ventures, LLC (Portland, Ore.) Siting Protocol for Marine and Hydrokinetic Energy Projects. Pacific Energy Ventures will bring together a multi-disciplinary team in an iterative and collaborative process to develop, review, and recommend how emerging hydrokinetic technologies can be sited to minimize environmental impacts.

PCCI, Inc. (Alexandria, Va.) Marine and Hydrokinetic Renewable Energy Technologies: Identification of Potential Navigational Impacts and Mitigation Measures. PCCI will provide improved guidance to help developers understand how marine and hydrokinetic devices can be sited to minimize navigational impact and to expedite the U.S. Coast Guard review process.

Science Applications International Corporation (SAI) – San Diego, Calif., International Standards Development for Marine and Hydrokinetic Renewable Energy. SAIC will assist in the development of relevant marine and hydrokinetic energy industry standards, provide consistency and predictability to their development, and increase U.S. industry’s collaboration and representation in the development process.

Third Topic Area, National Marine Energy Centers (Award size: up to $1.25 million for up to five years)

Oregon State University, and University of Washington – Northwest National Marine Renewable Energy Center. OSU and UW will partner to develop the Northwest National Marine Renewable Energy Center with a full range of capabilities to support wave and tidal energy development for the U.S. Center activities are structured to: facilitate device commercialization, inform regulatory and policy decisions, and close key gaps in understanding.

University of Hawaii (Honolulu, Hawaii) National Renewable Marine Energy Center in Hawaii will facilitate the development and implementation of commercial wave energy systems and to assist the private sector in moving ocean thermal energy conversion systems beyond proof-of-concept to pre-commercialization, long-term testing.

Types of Hydro Turbines

There are two main types of hydro turbines: impulse and reaction. The type of hydropower turbine selected for a project is based on the height of standing water— the flow, or volume of water, at the site. Other deciding factors include how deep the turbine must be set, efficiency, and cost.

Impulse Turbines

The impulse turbine generally uses the velocity of the water to move the runner and discharges to atmospheric pressure. The water stream hits each bucket on the runner. There is no suction on the down side of the turbine, and the water flows out the bottom of the turbine housing after hitting the runner. An impulse turbine, for example Pelton or Cross-Flow is generally suitable for high head, low flow applications.

Reaction Turbines

A reaction turbine develops power from the combined action of pressure and moving water. The runner is placed directly in the water stream flowing over the blades rather than striking each individually. Reaction turbines include the Propeller, Bulb, Straflo, Tube, Kaplan, Francis or Kenetic are generally used for sites with lower head and higher flows than compared with the impulse turbines.

Types of Hydropower Plants

There are three types of hydropower facilities: impoundment, diversion, and pumped storage. Some hydropower plants use dams and some do not.

Many dams were built for other purposes and hydropower was added later. In the United States, there are about 80,000 dams of which only 2,400 produce power. The other dams are for recreation, stock/farm ponds, flood control, water supply, and irrigation. Hydropower plants range in size from small systems for a home or village to large projects producing electricity for utilities.

Impoundment

The most common type of hydroelectric power plant (above image) is an impoundment facility. An impoundment facility, typically a large hydropower system, uses a dam to store river water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity. The water may be released either to meet changing electricity needs or to maintain a constant reservoir level.

The Future of Ocean and Wave Energy

Wave energy devices extract energy directly from surface waves or from pressure fluctuations below the surface. Renewable energy analysts believe there is enough energy in the ocean waves to provide up to 2 terawatts of electricity. (A terawatt is equal to a trillion watts.)

Wave energy rich areas of the world include the western coasts of Scotland, northern Canada, southern Africa, Japan, Australia, and the northeastern and northwestern coasts of the United States. In the Pacific Northwest alone, it’s feasible that wave energy could produce 40–70 kilowatts (kW) per meter (3.3 feet) of western coastline. The West Coast of the United States is more than a 1,000 miles long.
In general, careful site selection is the key to keeping the environmental impacts of wave energy systems to a minimum. Wave energy system planners can choose sites that preserve scenic shorefronts. They also can avoid areas where wave energy systems can significantly alter flow patterns of sediment on the ocean floor.

Economically, wave energy systems are just beginning to compete with traditional power sources. However, the costs to produce wave energy are quickly coming down. Some European experts predict that wave power devices will soon find lucrative niche markets. Once built, they have low operation and maintenance costs because the fuel they use — seawater — is FREE.

The current cost of wave energy vs. traditional electric power sources?

It has been estimated that improving technology and economies of scale will allow wave generators to produce electricity at a cost comparable to wind-driven turbines, which produce energy at about 4.5 cents kWh.

For now, the best wave generator technology in place in the United Kingdom is producing energy at an average projected/assessed cost of 6.7 cents kWh.

In comparison, electricity generated by large scale coal burning power plants costs about 2.6 cents per kilowatt-hour. Combined-cycle natural gas turbine technology, the primary source of new electric power capacity is about 3 cents per kilowatt hour or higher. It is not unusual to average costs of 5 cents per kilowatt-hour and up for municipal utilities districts.

Currently, the United States, Brazil, Europe, Scotland, Germany, Portugal, Canada and France all lead the developing wave energy industry that will return 30% growth or more for the next five years.

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MARSHA W. JOHNSTON, RenewableEnergyWorld.com, March 2009

One hundred and forty-one years ago, the relentless sea off Scotland’s coast inspired the following observation from native son and author George MacDonald:

I climbed the heights above the village, and looked abroad over the Atlantic. What a waste of aimless tossing to and fro! Gray mist above, full of falling rain; gray, wrathful waters underneath, foaming and bursting as billow broke upon billow…they burst on the rocks at the end of it, and rushed in shattered spouts and clouds of spray far into the air over their heads. “Will the time ever come,” I thought, when man shall be able to store up even this force for his own ends? Who can tell.”

In the United States, permitting may be an even bigger hurdle to marine energy deployment than financing. Between 25 and 35 different U.S. federal, state and local regulatory agencies claim some jurisdiction over marine power deployment. In the UK, two agencies handle permitting.

Today, we can certainly say, “Yes, the time will come.” The only question remaining is how long it will be before humankind routinely and widely uses electricity generated from the kinetic power of ocean tides, currents and waves.

If one defines “commercial ocean energy” as several tens of megawatts, the world cannot yet boast a commercial ocean energy installation. Indeed, only two installations of either wave, tidal or in-stream current devices are grid-connected and can generate over 1 megawatt (MW) of power. One is Pelamis Wave Power’s 2.25-MW Aguçadoura project off of Portugal’s northern coast and the other is Bristol-based Marine Current Turbines’ (MCT) SeaGen, a US $20-million commercial-scale tidal-energy project under development in Northern Ireland’s turbulent Strangford Narrows. In December, SeaGen boasted the first tidal turbine to hit a capacity of 1.2 MW.

(The biggest exception to commercial ocean energy production is the world’s longest running tidal power plant, the 240-MW La Rance, in France. But the plant’s barrage technology, which traps water behind a dam and releases it at low tide, has fallen out of favor due to its perceived higher environmental impact than underwater turbines. Nova Scotia has also been operating a 20-MW barrage Tidal Generating Station in the tidal-rich Bay of Fundy since 1984.)

The rest of the world’s wave, tidal and current installations, some of which have been in the water as far back as the 1990s, are experimental and prototype units ranging in size from 35 kilowatts (kW) to 400 kW. Because these units operate only intermittently and are not typically connected to any grid, it is not possible to determine their total power generation.

Many of these units are prototype demonstration units for the much bigger installations that are under development and that will begin to realize significant exploitation of the world’s ocean energy resource. For example, Ocean Power Technologies Inc. will use the 150-kW PowerBuoy it has been testing since the mid-90s as the “workhorse” for the 270-MW, four-site wave energy plant off California and Oregon coasts that it has partnered with Lockheed Martin to develop, says CEO George Taylor.

And Inverness, Scotland-based WaveGen expects to use 40 units of the 100-kw turbine it just installed off the Island of Islay for a 4-MW farm off of Scotland’s Isle of Lewis. Meanwhile, Pelamis says if its 750-kw “sea snake” devices, which were installed last year, make it through the winter, it will put 37 more of them in the water, generating 30 MW.

All of the wave, tidal, ocean and river current power around North America that can be practically extracted could together provide 10% of today’s electrical consumption in the U.S., says Roger Bedard, ocean energy leader at the Electric Power Research Institute (EPRI) in Palo Alto, CA. He adds that the total water resource could, it is sometimes said, possibly power the world twice over, but a lot of it is out of reach. “Hudson’s Bay, off the Arctic Circle, has HUGE tidal power, but it is thousands of miles from where anyone lives. We have HUGE wave resources off Aleutian Islands, but the same problem,” he says.  See EPRI’s U.S. Offshore Wave Energy Resource Map, below.

What will be the “magic” year for large-scale ocean energy deployment? Most developers indicate 2011-2012. Trey Taylor, co-founder and president of Verdant Power, which is moving into the commercial development phase of its 7-year-old Roosevelt Island Tidal Energy project, says the firm aims to have “at least 35 MW” in the water by the end of 2011.

Bedard is more circumspect. “I think it will be 2015 in Europe and 2025 in U.S. for big deployment,” he says, adding that the year cited depends entirely on the definition of “big” and “commercial,” which he defines as “many tens of megawatts.”

Verdant’s Taylor expects greater initial success in Canada. “The fundamental difference between Canada and the U.S. is that the underpinning of processes in Canada is collaborative and in the U.S. it is adversarial. It’s just the nature of Canadians, collaborating for community good, whereas in the U.S. people are afraid of being sued,” he said.

Bedard says the U.S. could catch up to Europe earlier, if the Obama Administration walks its big renewable energy infrastructure investment talk. “But if it’s business as usual, it could be later, depending on the economy,” he says.

Since the global economy began to melt down last September, many ocean energy companies have had to refocus their investment plans. With venture capital and institutional monies drying or dried up, firms are turning to public funds, strategic partners such as utilities and big engineering firms, and angel investors.

In November, MCT retained London-based Cavendish Corp Finance to seek new financing. Raymond Fagan, the Cavendish partner charged with MCT, said although tidal energy is not as advanced as wind or solar, he has seen a “strong level of interest so far from large engineering-type firms in MCT’s leading position.” Because MCT holds patents and is delivering power to the grid ahead of its competitors, Fagan thinks Cavendish can bring it together with such strategic partners.

In addition to the economic climate, he notes that the drop in oil and gas prices is further slowing renewable energy investment decisions. “Six to 12 months ago, people were leaping into renewable energy opportunities,” he says, adding that the UK government’s recent call for marine energy proposals for the enormous Pentland Firth zone north of Scotland will improve Cavendish’s chances of getting financing. Though it has yet to make a public announcement, MCT is widely viewed as a prime operator for the zone.

Monies are still available. Witness Pelamis Wave Power’s infusion of 5 million pounds sterling in November, which it says it will use for ongoing investment in core R&D and continuing development of its manufacturing processes and facilities.

In the U.S., permitting may be an even bigger hurdle to marine energy deployment than financing. Between 25 and 35 different U.S. federal, state and local regulatory agencies claim some jurisdiction over marine power deployment. In the UK, two agencies handle permitting. Bedard notes however, that streamlining the process in the U.S. may have begun with the recent opening of a new six-month process for licensing pilot marine energy plants.

Marine energy experts agree that there are more opportunities for wave power than for tidal, as there are simply fewer exploitable tidal sites. In technology terms, however, tidal turbines have benefited from a quarter century of wind turbine development, says Virginia Tech professor George Hagerman. Despite more widely available wave resource, wave energy developers face the challenge of needing many more devices than do tidal energy developers, and have a higher cabling cost to export the power.

As Christopher Barry, co-chair of the Ocean Renewable Energy panel at the Society of Naval Architects and Marine Engineers, explains: “The major challenge [to ocean energy] is not pure technology, but the side issues of power export and making the technology affordable and survivable.”

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TYLER HAMILTON, CleanBreak.ca, February 17, 2009

humpback_finToronto-based WhalePower, maker of the tubercle-lined turbine blades inspired by humpback whale flippers, got the results back from its first independent study in the field. 

The blade design was tested on a 25-kilowatt Wenvor Technologies turbine at the Wind Energy Institute of Canada. The institude found that annualized energy production from the retrofitted blade increased by an estimated 20%.

You can find the data here and analysis here. “Rated power was attained at 12.5 metres per second versus the 15 meters per second previously published performance for the unmodified Wenvor turbine. (Caveat: it’s an estimate because the test of the retrofitted blade followed International Electro-Technical Commission standards, while the benchmark data did not).

“An improvement of just 1% or 2% in AEP is significant,” said Stephen Dewar, WhalePower’s director of R&D. “Here we have about 20% with low noise. We’re thrilled by this result.”

The next step is to perform a more comprehensive apples-to-apples test on a larger turbine. These results may help the company raise the capital it needs to take its testing to the next level. Perhaps at some point it will begin catching the attention of some of the bigger wind-energy players.

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Publisher’s Note:  Feb 09, 2009 – Not only has Finavera surrendered their Makah Bay license noted below, they also announced surrendering the Humboldt County, California Preliminary Permit to explore wave energy:

“Finavera Renewables has filed applications to surrender its Federal Energy Regulatory Commission license for the Makah Bay Wave Energy Pilot Project in Washington and the Humboldt County Preliminary Permit for a proposed wave energy project in California.”

MendoCoastCurrent readers may recall Finavera’s inability to secure CPUC funding for the Humboldt project; noted below capitalization, financial climate as key reasons in these actions.

MendoCoastCurrent, February 6, 2009

finavera-wavepark-graphicToday Finavera Renewables surrendered their Federal Energy Regulatory Commission (FERC) Makah Bay, Washington wave energy project license, commenting that the Makah Bay Finavera project “never emerged from the planning stages.”

And “due to the current economic climate and the restrictions on capital necessary to continue development of this early-stage experimental Project, the Project has become uneconomic.  Efforts by Finavera to transfer the license were not successful.  Therefore, Finavera respectfully requests that the <FERC> Commission allow it to surrender its license for the Project. ”

Back in early 2007, Finavera’s Makah Bay project looked like it would become the first U.S. and west coast project deployment of wave energy devices.  And this project also had a unique status based on Native American Indian land/coastal waters, so the rules of FERC, MMS were different due to sovereign status.

Then AquaBuoy, Finavera’s premier wave energy device, sank off the Oregon coast due to a bilge pump failure in late October 2007.  

Recently noted was Finavera’s comment that they are currently focusing their renewable energy efforts toward wind energy projects closer to their homebase in British Columbia, Canada and in Ireland.

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MendoCoastCurrent, January 23, 2009

Marine Current Turbines Ltd, the Bristol based UK tidal energy company, in now in partnership Canada’s Minas Basin Pulp and Power Company Ltd to demonstrate and develop tidal power technology and facilities in Canada’s Bay of Fundy, Nova Scotia. Minas Basin Pulp and Power Company Limited (MBPP) of Hantsport, Nova Scotia is a leading sustainable energy and resources company.

Working in partnership with MBPP, Marine Current Turbines (MCT) will participate in the tidal power demonstration centre established by the Province of Nova Scotia. MBPP and MCT intend to deploy a 1.5MW tidal generator when the in-stream tidal energy centre enters full operation and is connected to the Nova Scotia grid. 

MCT installed the world’s first offshore tidal current device in 2003 off the south west coast of England (the 300kW SeaFlow) and during 2008, it installed and commissioned its 1.2MW SeaGen commercial prototype tidal current turbine in Strangford Narrows in Northern Ireland. SeaGen generated at its full output of 1.2MW onto the local grid in December 2008, becoming the most powerful marine energy device in the world. It has the capacity to generate power for approximately 1,000 homes. 

Notes on the SeaGen Technology from MCT: SeaGen works by generating power from sea currents, using a pair of axial flow turbines driving generators through gearboxes using similar principles to wind generator technology. The main difference is that the high density of seawater compared to wind allows a much smaller system; SeaGen has twin 600kW turbines each of 16m diameter. The capture of kinetic energy from a water current, much like with wind energy or solar energy, depends on how many square meters of flow cross-section can be addressed by the system. With water current turbines it is rotor swept area that dictates energy capture capability, because it is the cross section of flow that is intercepted which matters. SeaGen has over 400 square meters of rotor area which is why it can develop its full rated power of 1.2MW in a flow of 2.4m/s (5 knots).

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