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Welcome to this website about the
The Pelamis Wave Energy Converter. It is an emerging technology that will use the motion of ocean waves to create electricity. The first "wave farm" is planned for 2006 off the coast of
Portugal near the city of Póvoa de Varzim. The wave farms will use three Pelamis P-750 machines, with each machine capable of producing 750 kilowatts, and each farm producing 2.25 megawatts. The farm will displace more than 6,000 tons of carbon dioxide emissions that would otherwise be produced by conventional hydrocarbon-fuelled power plants.(1)

The first twelve tube sections will be constructed at the Arnish manufacturing site, on the Isle of Lewis by the Scottish company Camcal while the remaining will be constructed in Portugal.

Words used on this site found below.

Pelamis Wave Energy Converter to Electricity, Renewable, Emission Control, Electricity Renewable, Mission, Control, Emission, Accumulator, Megawatt, Kilowatt, Carbon, Dioxide, Power, Hydrocarbon, Power, Emerging, Plant, Conversion, Research, Saving, environmentally, Mechanical, Capture, Generator, Survivability, Trials, Tidal, Richard Yemm, Ventures,  Hydraulic, Motors, Delivery, Inventor, Current

You can find this site again  by typing in the  Google search engine  the unique word " 1simaleP "  which is  OR " Pelamis1 " backwards.

 

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Pelamis wave energy converter for electricity

The Pelamis Wave Energy Converter is an emerging technology that will use the motion of ocean waves to create electricity. The first "wave farm" is planned for 2006 off the coast of Portugal near the city of Póvoa de Varzim. The wave farms will use three Pelamis P-750 machines, with each machine capable of producing 750 kilowatts, and each farm producing 2.25 megawatts. The farm will displace more than 6,000 tons of carbon dioxide emissions that would otherwise be produced by conventional hydrocarbon-fuelled power plants.(1)The first twelve tube sections will be constructed at the Arnish manufacturing site, on the Isle of Lewis by the Scottish company Camcal while the remaining will be constructed in Portugal.

Contents

[edit] Principles

The Pelamis is an attenuating wave device designed for survivability at sea rather than highly efficient energy conversion. This means that rather than absorbing all of the energy available in a wave, it converts only a portion of that energy to electricity. This is principally so that the device can survive in dangerous storm conditions which could do considerable damage to a wave device attempting to absorb all the available energy.

[edit] Operation

The Pelamis device consists of a series of semi-submerged cylindrical sections linked by hinged joints. The wave induced relative motion of these sections is resisted by hydraulic rams which pump high pressure oil through hydraulic motors via smoothing hydraulic accumulators. The hydraulic motors drive electrical generators to produce electricity, 30 of these machines can power 20,000 UK homes. Power from all the joints is fed down a single umbilical cable to a junction on the sea bed. Several devices can be connected together and linked to shore through a single seabed cable.

Etymology

Pelamis platurus is a yellow-bellied sea snake that lives in tropical and subtropical waters. It prefers shallow inshore waters

 

Pelamis wave energy converter

to Electricity

     
 

Offshore Wave Energy                                   

 
 

Pelamis P1A machines unveiled in Portugal 

The Aguçadoura wave farm project was presented at the Peniche shipyard on the 12th of May. The event, coordinated by Enersis and Ocean Power Delivery, was witnessed by four Secretaries of State of the Portuguese Government, namely Defense & Sea Affairs, Transports and Environment, who classified the Pelamis as an “advanced wave energy conversion technology”. The wave farm, which will be installed this summer, will be rated at 2.25 MW at this first stage. 

On the 16th of May the Portuguese Minister for Economic Affairs & Innovation, Manuel Pinho, also visited the Peniche shipyard and the three Pelamis machines.

 
Ocean Power Delivery Ltd announces that it has raised over £13m of new investment from a consortium of new and existing investors
Please click here to view the Press Release

Click here to view footage of the P1A machines being shipped to Portugal
Ocean Power Delivery Ltd has developed a novel offshore wave energy converter called Pelamis. Building on technology developed for the offshore industry, the Pelamis has a similar output to a modern wind turbine. The first fullscale pre-production prototype has been built and is being tested at the European Marine Energy Centre in Orkney.
Photographs supplied courtesy of Aquatera - www.aquatera.co.uk

 


Latest News

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Pelamis Brochure

Interactive Model

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Press Reports



 



The Pelamis on site at the EMEC centre, Orkney 

It is anticipated that future `wave farm' projects would consist of an arrangement of interlinked multi-machines connected to shore by a single subsea cable. A typical 30MW installation would occupy a square kilometre of ocean and provide sufficient electricity for 20,000 homes. Twenty of these farms could power a city such as Edinburgh.

 

 

 

         
  Ocean Power Delivery Limited  104 Commercial Street  Edinburgh  EH6 6NF  United Kingdom
 The pelamis device consists of a series of semi submerged cylindrical sections linked by hinged joints. The wave induced relative motion of these sections is resisted by hydraulic rams which pump high pressure oil through hydraulic motors via smoothing accumulators. The hydraulic motors drive electrical generators to produce electricity. Power from all the joints is fed down a single umbilical cable to a junction on the sea bed. Several devices can be connected together and linked to shore through a single seabed cable.

 

Ocean Power Delivery Ltd, the company, which develops this novel offshore wave energy converter has been awarded a contract to install a pair of 375kW prototype devices off Islay, Scotland, under the 1999 Scottish Renewables Obligation (SRO3). The devices are scheduled to be installed early in 2002 and will generate over 2.5 million kWh's of electricity per year, enough to provide power for 150-200 homes. The aim of these prototypes is to prove the technology and provide a facility for testing and developing further aspects of the device.

Pelamis - mechanical snake to extract megawatts from Waves

Made in Scotland, but it's a Portuguese consortium, led by Enersis, who are to build the world's first commercial wave farm off the north coast of Portugal. The initial phase will consist of three Pelamis P-750 (750 kW) machines, giving a total installed capacity of 2.25MW at a cost of £8 million. If all goes well, the number will be boosted to 30 or 40 machines.

The Pelamis prototype has been operating at the Orkney test centre since August 2004. No major issues of durability or corrosion were found during the staged test programme over the year. The US Electric Power Research Institute (EPRI) have given it a positive independent assessment, considering that it's the closest to commercial delivery of current wave energy machines. Read the EPRI report here

The EPRI assessment for the US government envisages tens of GW wave energy off shore for Massachusetts and other states. Wave energy has the potential to become one of the lower cost forms of generation in the longer term, it is believed. Ocean Power Delivery who have developed Pelamis say the power from the Portuguese installation will be a quarter the current cost of solar photovoltaic power and half the cost of the first wind power machines.

Each Pelamis 'snake' is made of four segments, hinged both horizontally and vertically, to permit sideways and up-and-down movement. Each segment in the P-750 will be similar in size and length to a train carriage. When it's bent and twisted by the waves, pistons force oil through hydraulic chambers connected via valves to give a smoothed flow that drives a dynamo generator.

The Pelamis snake is moored to keep it head-on into the waves. Survivability is vital so the design allows Pelamis to dive through storm waves that are ten times higher than the average waves (100 times more power). Efficiency is quite low, under 10%, but that is not so important when the waves off Atlantic facing coasts carry some 60kW per metre.

 

Wave Energy Potential Warrants Further Research and Development, Says EPRI

Palo Alto, Calif. — February 3, 2005 — A new report from the Electric Power Research Institute (EPRI) suggests that generation of electricity from wave energy may be economically feasible in the near future. The study was carried out by EPRI in collaboration with the DOE's National Renewable Energy Laboratory (NREL) and energy agencies and utilities from six states.

Conceptual designs for 300,000 megawatt-hour (MWh) plants (nominally 120 MW plants operating at 40% capacity factor) were performed for five sites: Waimanalo Beach, Oahu, Hawaii; Old Orchard Beach, Cumberland County, Maine; WellFleet, Cape Cod, Massachusetts; Gardiner, Douglas County, Oregon; and Ocean Beach, San Francisco County, California.

The study determined that wave energy conversion may be economically feasible within the territorial waters of the United States as soon as investments are made to enable wave technology to reach a cumulative production volume of 10,000 - 20,000 MW. (Land-based wind turbines, in comparison, generate 40,000 MW.)

"Wave energy is an emerging energy source that may add a viable generation option to the strategic portfolio," said Hank Courtright, EPRI's vice president, Generation and Distributed Resources. "The bedrock of a robust electricity system is a diversity of energy sources, and wave energy could provide an energy source that is consistent with our national needs and goals."

According to the study, wave energy will first become commercially competitive with land-based wind technology at a cumulative production volume of 10,000 or fewer MW in Hawaii and northern California, about 20,000 MW in Oregon and about 40, 000 MW in Massachusetts. Maine is the only state in the five site study whose wave climate is such that wave energy may never be able to economically compete with a good wind energy site. This forecast was based on the output of a 90 MW Pelamis wave energy conversion plant design and application of technology learning curves that will enable cost savings.

The forecast results have convinced the project team of the rationale for investment in wave energy technology research and development, including demonstration projects to prove the feasibility of wave energy conversion technology in actual sea-state environments.

There are several compelling arguments for investing in offshore wave energy technology. First, with proper siting, conversion of ocean wave energy to electricity is believed to be one of the most environmentally benign ways to generate electricity. Second, offshore wave energy offers a way to minimize the 'Not in my backyard' (NIMBY) issues that plague many energy infrastructure projects. Wave energy conversion devices have a very low profile and are located far enough away from the shore that they are generally not visible. Third, wave energy is more predictable than solar and wind energy, offering a better possibility of being dispatchable by an electrical grid systems operator and possibly earning a capacity payment.

A characteristic of wave energy that suggests that it may be one of the lowest cost renewable energy sources is its high power density. Processes in the ocean concentrate solar and wind energy into ocean waves, making it easier and cheaper to harvest. Solar and wind energy sources are much more diffuse, by comparison.

Wave power was delivered to the electrical grid for first time in August 2004. The electricity was generated by a full-scale preproduction Pelamis prototype in Orkney, Scotland by Ocean Power Delivery Corporation.

The offshore wave energy reports are currently available at http://www.epri.com/targetWhitePaperContent.asp?program=267825&value=04T084.0&objid=297213.

EPRI, with major locations in Palo Alto, Calif., and Charlotte, NC, was established in 1973 as an independent, non-profit center for public interest energy and environmental research. EPRI's collaborative science and technology development program now spans nearly every area of power generation, delivery and use. EPRI's members represent over 90% of the electricity generated in the United States. International participation represents over 10% of EPRI's total R&D program, with 62 members and more than 130 funders.

 

Welcome to the EPRI Ocean Energy Web Page!

What is ocean energy?
"Ocean energy" is a term used to describe all forms of renewable energy derived from the sea including wave energy, tidal energy, ocean current energy, offshore wind, salinity gradient energy and ocean thermal gradient energy.

  • Wave energy is the capacity of the waves for doing work. Ocean waves are generated by the influence of the wind on the ocean surface first causing ripples. As the wind continues to blow, the ripples become chop, fully developed seas and finally swells. In deep water, the energy in waves can travel for thousands of miles until that energy is finally dissipated on distant shores.
  • Tidal in stream energy occurs due to the moving mass of water with speed and direction as caused by gravitational forces of the sun and the moon on the earth's waters. Due to its proximity to the earth, the moon exerts roughly twice the tide raising force of the sun. The gravitational forces of the sun and moon create two "bulges" in the earth's oceans: one closest to the moon, and the other on the opposite side of the globe. These bulges result in two tides (high to low water sequences) per day. Moving water has kinetic energy. The energy per second intercepted by an energy conversion device is a function of the frontal area of the device, the density of the water, and the cube of the speed of the water.

 

Ocean Energy

Ocean Energy Projects

  • Wave Power Project
  • Tidal Power Project
  • Hybrid Offshore Wind-Wave Project
  • More to come later

Ocean Energy Reports

Ocean Energy Briefing

 
 
Wave Energy
 
Can a mechanical snake that surfs the ocean squeeze enough watts from water?

VOLTS FROM A MECHANICAL SEA SNAKE

Pelamis is a segmented cylinder moored at both ends to the ocean floor. As a wave passes down the length of Pelamis, hinged joints on the power conversion modules allow the tubes to move up and down and side to side. The motion of the tubes relative to one another drives pumps that turn generators. The electricity flows via a cable to a shore-based grid. To access high-energy swells, Pelamis is designed for use about five miles offshore.

 

HOW THE MODULE CAPTURES WAVE ENERGY:  A horizontal hinge (1A) on one side of the module exploits up-and-down motion (heave). A vertical hinge (1B) on the opposite side exploits side-to-side motion (sway). The wave-induced motion forces the pistons (2) that connect the segments forward and backward through hydraulic chambers (3). The action pushes biodegradable fluid through accumulators (4) that smooth the flow and turn hydraulic motors (5). The revolutions drive generators (6), producing electricity.

The tsunami in the Indian Ocean last December that killed nearly 300,000 people and shattered the lives of millions also offered the world an indelible demonstration of how much energy a wave can carry. Geologists estimate the underwater earthquake that triggered the tsunami unleashed a force greater than all the explosives detonated in World War II. That much energy—6 trillion watt-hours—breaks on the world's coastlines every two hours or so. Capture it all and you could power 5 million American households for a year.

Offshore, even more free energy rolls in swells. Tony Trapp, managing director of Engineering Business Ltd. in England, calculates that capturing just 1 to 2 percent of global wave power—the share he considers recoverable—could supply 13 percent of the world's current demand for electricity.

The bonanza is so obvious that inventors have dreamed of harnessing ocean waves for more than two centuries. In 1799 a French father-and-son team tried to patent a giant lever attached to a floating ship, which would rock with the waves to drive shoreside pumps, mills, and saws. But steam power stole everyone's attention, and the dream languished on drawing boards. Two centuries later, oil embargoes once again spurred wave-power designs, but they passed into memory as gasoline prices slid downward. Now, as oil prices soar again, wave energy may finally be poised to deliver.

ENERGY FROM UNDULATION

Ocean Power Delivery

A Portuguese consortium backs the world's first commercial wave farm, located off the country's northern coast. The initial order is for three units of the wave-energy capture device known as Pelamis. The motion of the segmented structures will produce electricity for 1,500 households. If all goes well, the project may eventually include 40 such sea snakes.


Engineers at Ocean Power Delivery in Edinburgh, Scotland, can point to proof bobbing just off the stormy shores of Scotland's Orkney Islands. There, Ocean Power's sinuous, 450-foot-long cherry-red steel snake, called Pelamis after a sea snake, pumps 11,000 AC volts into a grid at the European Marine Energy Centre, an innovative test bed that can offer the sort of apples-to-apples performance measures of sea generators that investors and electric utilities crave.

 

Since its installation a little more than a year ago, Pelamis has performed so well that a Portuguese consortium, led by the renewable energy company Enersis, recently ordered three of the devices. If tests go well, the group intends to buy 30 more. Ocean Power engineers say that 40 of their sea snakes spread across 250 acres would supply enough electricity to feed as many as 20,000 households.

Pelamis's inventor, Richard Yemm—a tousled, big-boned mechanical engineer—is a lifelong sailor. His project development engineer, Andrew Scott, is an ardent surfer. Both got their sea legs in Scotland's rough, cold waters, and both have a healthy respect for the energy that waves carry.
Designing a wave generator is "a very complex problem," muses Yemm, "an unusual marriage of physics and heavy-duty engineering in a dynamic environment."

The sea is indeed cruel. Storms have wrecked pioneering wave generators in Norway and Britain and badly damaged a European Union experiment in the Azores Islands of Portugal.
The genius of Pelamis is that it avoids storm destruction because its segmented body is designed to rock and roll with the waves.
As its hinged joints heave and fold, they pump hydraulic pistons, which in turn spin high-pressure fluid generators. The system uses off-the-shelf technology, and the current travels by cable to shore. The cable also works like a boat's anchor and chain, holding Pelamis in place while allowing enough play to keep it positioned head-on into the wind and waves.

The design allows Pelamis to withstand storm waves that rise 10 times as high as average waves and pack 100 times as much power. As waves get steeper and uglier, Pelamis dives through them like a surfer ducking through a breaker. "People in the wave field looked from the start for efficiency; you have to start from survivability," says Max Carcas, director of business development for Pelamis.

Like oil, wave power is unequally distributed and a matter of lucky geology. Because Earth rotates eastward, and winds come mostly from the west, waves tend to be strongest at latitudes distant from the equator and at the eastern ends of long fetches, such as the western coasts of continents. Waves off Western Europe and the Pacific Northwest can generate a hefty 40 to 60 kilowatts per yard width of wave front. West of Ireland and Scotland, the average wave power rises to 70 kilowatts. But on the east coasts of Asia, Africa, Australia, and the Americas, waves average just 10 to 20 kilowatts per yard.

Inevitably, people trying to understand the potential of wave energy try to compare it with wind power. But wind, though capricious, is a relatively simple phenomenon, and efforts to capture its energy quickly settled around standard aerodynamics that reverse the principles of powering a propeller plane. On a tower, a prop pushed by wind spins a shaft connected to a generator. Capturing waves is much more complex, forcing engineers to contrive a head-spinning assortment of designs. A wave can drive a pump, a piston, and a turbine. Each can produce either mechanical motion or fluid pressure, which in turn can drive a generator. Nearly two dozen wave-energy systems are in development, and most are striking in their differences, not their similarities.

POTENTIAL SOURCES OF SEA POWER

WAVES
HOW TO HARNESS: Floating or shoreside devices capture wave energy to produce electricity (or, in the future, hydrogen or desalinated water)
UPSIDES: Large, widespread resource; promising economics; environmentally benign; readily scalable
DOWNSIDES: Variable intensity (though much more predictable and consistent than wind); hazardous conditions; many designs are untested for long-term survivability; navigation and sea-space concerns
PROSPECTS: Good in the medium and long term; uncertain for the short term

TIDAL CURRENTS
HOW TO HARNESS: Rotary turbines and other collectors capture energy in underwater tidal streams
UPSIDES: Extremely dense energy source; highly predictable; promising economics; scalable
DOWNSIDES: Daily slack intervals; underwater devices difficult and costly to service; less widespread than waves
PROSPECTS: Good

OCEAN CURRENTS

HOW TO HARNESS: Devices capture in-stream energy in the same way as tidal-current collectors but operate in monodirectional, heat-driven oceanic "rivers," such as the Gulf Stream
UPSIDES: Dense, large-scale, predictable; constant resource
DOWNSIDES: Limited number of sites; technical challenges; uncertain impact on ocean circulation patterns
PROSPECTS: Promising in the long run; big payoff once issues are resolved

ESTUARINE TIDES
HOW TO HARNESS: Dams impound flows behind gates and release them through hydroelectric turbines
UPSIDES: Proven, reliable technology; low operating costs
DOWNSIDES: Major environmental impacts; high capital cost; limited number of sites
PROSPECTS: Unlikely

Waves originate when air and water surface temperatures are not the same. The heat of the sun causes air to rise, and the rising air produces wind, which pushes the water into waves. But the particles in a wave do not travel far like the molecules in wind. Instead, wind-stirred water particles begin rotating, nudging the particles ahead of them, which in turn start to revolve and nudge those ahead of them, and so on, sometimes for thousands of miles. Although the particles mostly return to their original positions, the wave travels onward.

Waves are also more concentrated than wind. Although winds reach higher velocities, waves tend to be more powerful because water is 832 times as dense as air. Once a wave gets moving, it packs a heavier punch.

Waves—and tides—offer other advantages over wind. Winds are notoriously fickle, rising, gusting, and diminishing, sometimes within minutes. Waves keep rolling once they build momentum and can be forecast as far as three days away. Tides are so regular they can be forecast for decades.

Finally, wave machines hold another edge: They're more discreet. In areas like Cape Cod, noisy, view-blocking, bird-whacking wind towers have sparked a backlash. Wave generators, says engineering professor Stephen Salter of the University of Edinburgh, are "quite nice to have around, just like big, friendly whales."

Most make little noise. Rotating parts are either self-contained or so slow moving that marine animals should be able to avoid them. Wave farms don't interfere with aviation or radar, like wind towers, and they require far less space than wind farms. They must, however, be sited outside sea-lanes and marked well.

Recently, the Electric Power Research Institute, an industry-supported think tank based in Palo Alto, California, judged Pelamis the only wave-energy system advanced enough for use in trials scheduled for the waters of Maine, Washington, Oregon, and Hawaii. One can only imagine the sight—40 red serpents undulating in the sea, churning out 12 megawatts of power.

To pioneers like Yemm, generating electricity is just the beginning. He looks forward to a day when the same technology will be used to desalinate water or produce hydrogen: "Wave is new. It has the potential to be really big."

 

Pelamis's inventor, Richard Yemm—a tousled, big-boned mechanical engineer—is a lifelong sailor. His project development engineer, Andrew Scott, is an ardent surfer. Both got their sea legs in Scotland's rough, cold waters, and both have a healthy respect for the energy that waves carry.

Executive warned: Don't miss lucrative power wave

SCOTLAND risks losing an early lead in a multi-billion-pound industry of the future, if the Scottish Executive does not move fast to promote domestic "market pull" for marine electricity, according to the inventor of the world's first commercially viable wave-power generator.

The warning comes from Richard Yemm, managing director of Leith-based Ocean Power Delivery (OPD), and inventor of the Pelamis P1A generator.

 

Yemm was speaking as OPD completed loading the first of a three-unit Pelamis order to be shipped to Piniche, north of Lisbon, Portugal, where it will form the pilot component of a "wave farm" to be built by a consortium led by the Portuguese utility Enersis. The £6 million advance order of three units, each capable of generating 750kW, will be the first stage of a deal worth £50m on completion.

The World Energy Council estimates that the entire export market for wave power technology could be worth £500 billion worldwide.

In words that will be seen as putting pressure on the Scottish bureaucracy, Yemm warned yesterday that OPD would consider relocating its manufacturing base to Portugal if the Executive failed to amend the 2002 Renewables Obligation Scotland (ROS), to give a decisive boost to the marine power sector.

Instead of research and development grants, Yemm said, marine power pioneers wanted the commercial incentivisation of utility companies to derive a proportion of their electricity generation from the sea. Using legislative instruments to promote a domestic market for wave power was, he said, the only way to keep a potentially major manufacturing and servicing industry in Scotland.

"Building for export is a dangerous game because there is pressure to take the economic benefits to the region where the energy is deployed and not to where the technology was developed," he said.

"If we don't have commercial activity here in Scotland before the major phase of the Portuguese order is fulfilled - by the end of the year - then I believe it will mark the start of the slide."

Yemm, who founded OPD in 1998 and pioneered Pelamis's prototypes at the European Marine Energy Centre in Orkney, revealed that the company was already in discussion with "a number of parties" in Scotland, and that Pelamis units could be installed in Scottish waters by early next year. But he said this was "100 per cent contingent" on the early amendment of ROS.

OPD already has a memorandum of understanding with a Spanish partner, and is in discussion with firms in Australia, New Caledonia, South Africa and the United States.

The Portuguese "wave farm", once the full complement of 30 Pelamis units are installed, will be capable of generating 24 megawatts, enough to power 15,000 households.

"Pelamis was developed and proven here - it is Scottish born and bred," said Yemm. "For all our excitement, there is a tinge of sadness that our first commercial exploitation of the technology will not be in Scotland. But Portugal has differentiated its renewables obligation into wind, hydro, solar and now wave subsections, which makes it exciting for private companies to invest in each of these.

"Grants are nice for the first project, but the real market driver is something that rewards generation of electricity from wave energy. If we don't have a wave-power project in Scotland soon, we will risk losing out on another industrial opportunity as opposed to a technological development opportunity."

Citing the example of the wind turbine manufacturing industry (see above), he said: "What we don't want to happen is that we follow the age-old Scottish story of having clever things invented and developed here but the actual industry that emerges from that, with all the jobs and economic benefit, going elsewhere."

New generation hoping to avoid mistakes of the past

SCOTLAND'S infant wave power sector is desperate that marine generator makers do not repeat the history of their cousins in the renewable sector, the manufacturers of wind turbine

The Howden Group of Renfrew had an early technological lead in wind turbines as far back as the 1980s but abandoned the sector due to lack of domestic market. The government's strategy, says Richard Yemm, was one of "technological push" rather than "industry pull": "The approach was research and more research rather than deployment. Howden just got sick of it and pulled out of the sector."

Meanwhile, Denmark and Germany created a "feeder market" for utilities to install early technology, learning through active commercialization. The result? Denmark and Germany hold two-thirds of the world's manufacturing capacity for wind turbines, a 12bn, 60,000 employee industry growing at 30 per cent a year.

Yemm added: "Half of those jobs are in Denmark. They could have been in Scotland. We missed the boat."

  Latest News  
         
 

September 2006 - Wave power project in the sea off Cornwall
E.ON UK and Ocean Prospect announced their agreement to work together to develop proposals for a potential 5MW wave power project in the sea off Cornwall.  The proposed project, called WestWave, would consist of up to 7 Pelamis Wave Energy Converters and could generate enough clean, green energy to power the equivilent of 3,000 households.
Please click here to view the E.ON Press Release

August 2006 - Enterprise Minister, Nicol Stephen, visits OPD in Portugal
On 30th of August, the Scottish Enterprise Minister, Nicol Stephen, visited OPD at the Peniche shipyard in Portugal.
Please click here to view the Scottish Executive Press Release

June 2006 - OPD announces that it has secured £13m investment
Ocean Power Delivery Ltd. has announced that it has raised over £13m of new investment from a consortium of new and existing investors.
Please click here to view the Press Release

May 2006 - Enersis and OPD present the Aguçadoura wave farm project
The Aguçadoura wave farm project was presented at the Peniche shipyard on the 12th of May. The event, coordinated by Enersis and Ocean Power Delivery, was witnessed by four Secretaries of State of the Portuguese Government, namely Defense & Sea Affairs, Transports and Environment, who classified the Pelamis as an “advanced wave energy conversion technology”. The wave farm will be rated at 2.25 MW at this first stage. 

On the 16th of May the Portuguese Minister for Economic Affairs & Innovation, Manuel Pinho, also visited the Peniche shipyard and the three Pelamis machines. has announced that it has raised over £13m of new investment from a consortium of new and existing investors.



March 2006 - Shipping of first P1A Pelamis machine to Portugal
OPD announced the loading and shipment of the first of three Pelamis wave energy converters to Portugal.  The machines will be delivered to the Port of Peniche where they will undergo final assembly prior to commisioning and installation later this year.

Please click on this link to view the press release
 
February 2006 - UK Energy Minister visits OPD
On February 23rd, the UK Energy Minister, Malcolm Wicks, visited OPD's assembly facility in Methil to see the Power Conversion modules prior to their departure to Portugal.  He has been tasked with leading a review of the UK's long-term energy policy and commented:
"The UK marine energy industry is a world leader and Ocean Power Delivery, in Scotland, is at the forefront."
Please click on this link to view the press release
February 2006 - Pelamis is selected to be attached to the Wave Hub
The South West of England Regional Development Agency announced that the Pelamis would be one of three wave energy devices selected to occupy a position at the Wave Hub project off the coast of Cornwall.  The project developers Ocean Prospect announced that they intend to generate 5MW, using Pelamis machines at their allocated position.

Link to Ocean Prospect website
Link to South West of England Regional Development Agency website 

June 2005 - OPD announces contract award for main tube fabrication
The contract for the fabrication of the main tubes for the three Pelamis machines, for Portuguese project, has been awarded.  The twelve tube sections will be constructed at the Arnish manufacturing site, on the Isle of Lewis by the Scottish company Camcal.
Please click on this link to view the press release

May 2005 - OPD announces that it has secured the first order for Pelamis wave energy converters
OPD has signed an order with a Portuguese consortium, led by Enersis, to build the initial phase of the world's first commercial wave farm.  The initial phase will consist of three Pelamis P-750 machines located off the North coast of Portugal, near
Póvoa de Varim.  The €8m project will have an installed capacity of 2.25MW, and is expected to meet the average electricity demand of more than 1,500 Portuguese households.
Please click on this link to view the press release
For the last 9 months Orkney has been the home to the Pelamis.  It has undergone a staged test programme since last year and has clocked up 1000 hours of operating experience with no major durability or corrosion issues emerging.
Already the valuable information gained from building and operating the Pelamis prototype is being fed back into the design process for the next generation of Pelamis machines. 
 

Wave machine ready for sea trials
 
                                       Wave farm
Artists impression of a Pelamis wave farm

A new floating wave power machine aimed at helping Scotland meet ambitious green energy targets has been unveiled in Edinburgh.

The Pelamis energy converter, manufactured by Ocean Power Delivery, should generate enough electricity to power 500 homes.

The prototype will be tested in Orkney later this year.

The Scottish Executive wants 40% of Scotland's energy to come from renewable sources by 2020.

The generator is the length of four train carriages and is designed so that hinged joints between the sections move in the waves.

Trial hopes

The motion powers hydraulic motors which generate the electricity and the firm claims a square kilometer wave farm would power up to 20,000 homes.

Max Carcas, from Ocean Power Delivery, said the system was designed to stick pointing out to sea.

Mr Carcas said: "If you think of somebody standing on a beach, arms outstretched, and a big wave comes up and hits you, you'll end up on your backside half-way up the beach.

                                             Wave machine
The Pelamis is now ready for field trials

"But if instead, when that wave comes, you dive through the wave you pop out the other side and wonder what all the fuss was about.

"That's really the case here, we've got a minimal cross section area pointing into the waves."

Enterprise Minister Jim Wallace said the move to power-generating projects like the Pelamis was an obvious step.

Mr Wallace said: "We've got winds, we've got the seas, and I think it does mean that although our target of 40% electricity generated by 2020 is an ambitious one, I think it is one we can achieve."

Commercial companies are said to have shown interest in the project, subject to successful trials off the coast of Orkney.

Ocean Energy Discussion

 

Wave EnergyA Portuguese energy company called Enersis is funding a commercial wave energy project in Northern Portugal. Construction will begin at the end of October 2006. The project will use Pelamis wave generator technology (manufactured by Ocean Power Delivery) to harness energy from the ocean. After two decades of research and testing at the Lisbon Technical Institute, the first stage of this ocean energy project is intended to produce 2.25 megawatts and power homes through the nation’s state-run electrical grid system. Ocean Power Delivery is considered to be the world’s leading ocean energy company.

“This project, begun in 2003, is now in the world vanguard,” said Rui Barros, Enersis director of new projects. “Of all the varieties of renewable energy, perhaps harnessing the waves is the only one where Portugal might have a real future,” he said. With its geographical position and extensive coastline giving access to the larger and more powerful Atlantic waves, official estimates from Portugal’s State Secretariat for Industry and Innovation have predicted wave power could account for up to 30 percent of the country’s gross domestic product by 2050. Renewable energy experts have determined wave farms in Portugal could yield as much as three times as much energy as that produced by a wind turbine park for the same investment cost.

A report published by the Portuguese Wave Energy Center has confirmed the long-term economic benefits of wave energy for the country and calls on the government to put in place a strategy to attract foreign investment into Portuguese wave power ventures. “The utilization of wave energy may have a significant socio-economic impact on Portugal, namely regarding renewables, creation of job opportunities, opportunity of exportation of equipment and services, innovation and development of technology, as well as companies dedicated to the exploitation of other oceanic resources,” the report says.

Wave Energy TechnologyRelatively new in development, modern research into wave power had its beginnings in response to the 1973 oil crisis. Professor Stephen Salter of the University of Edinburgh pioneered research into wave energy with his prototype machine “Salter’s Duck.” Though the duck remains a laboratory prototype, the machine remains the standard for wave energy. The experimental device converted around 90 percent of the wave power by bobbing up and down on the surface of the water - like a duck. Despite its early promise though, setbacks and a general lack of government support saw the project shelved.

However, with the Portuguese system set to be the world’s first commercial wave energy venture, the exploitation of wave power has found itself back on the renewable energy agenda.

Following the Enersis announcement, other countries naturally suited to the development of wave power have expressed their interest in introducing the technology. Following his recent visit to Aguçadoura, Scottish Executive Enterprise Minister Nicol Stephen announced that a portion of the 8 million pounds already set aside for renewable marine energy in Scotland would now be directed towards installing the Pelamis wave devices at the European Marine Energy Center in Orkney.

“I am committed to supporting Scotland’s huge wave and tidal energy resource. Scotland has a real opportunity to be a world leader in this field,” said the minister shortly after his visit to view the wave energy project in northern Portugal. “The opportunity now exists to create a multi-million pound industry based in Scotland, employing thousands of highly skilled people,” he said.

However, environmental group Friends of the Earth, while supporting the minister’s announcement, sounded a warning that any delays in introducing the wave power technology could lead to an exodus of Scottish expertise.

Wave and tidal power could supply a fifth of U.K. energy needs and Scotland is ideally placed to generate significant amounts of this pollution-free energy,” said Friends of the Earth chief executive Duncan McLaren. “However, there is a danger that unless we see full-scale devices in our waters soon that the world-leading expertise Scotland has built up will rapidly depart these shores,” he said.

As part of the government supported alternative energy plan, another 28 wave power devices will be installed in Portugal within a year, reaching a target of 22.5 megawatts of electricity produced using wave energy. The project is supported by state run power company Energias de Portugal.

 Click Here PDF Slide Show of Pelamis Slides

http://hydropower.inel.gov/hydrokinetic_wave/pdfs/day1/09_heavesurge_wave_devices.pdf

Technology Ventures in Hydro recognized the potential early on and now holds a minority stake in the Pelamis Wave Energy Converter project.

The UK Department of Trade and Industry is another significant supporter through its New and Renewable Energy Programme. Close to NOK 100 million (EUR 11.4 million/USD 14.3 million) has so far been invested into the Pelamis project. The prototype test - the result of six years of design and development work done by OPD in a waterfront warehouse in Edinburgh - is being carried out at the European Marine Energy Centre in the Orkney Islands.

A press event was held Monday at the Port of Leith in Edinburgh to celebrate the launch, attended by the Scottish Parliament’s Deputy First Minister, Jim Wallace.

Pelamis potential

Hydro and OPD envisages eventually placing 30-40 Pelamis units each in offshore wave power farms (covering an area approximately one square kilometer). The power plots would be capable of generating a total 30 MW of electricity - sufficient energy for some 4,000 homes. The current prototype unit generates about 0.75 MW.

“But we need to be realistic about the pace of developing wave power,” says Technology Ventures director Richard George Erskine. Using present technology, it costs about 60 øre (EUR .07/USD .09) per kilowatt to produce wave power, about twice the cost of generating wind power. Current power prices on the open Nordic electricity market are at 20 øre (EUR .02/USD .03) per kilowatt.

“We want to get prices down to 30-40 øre per kilowatt within 10 years,” Erskine says.

The EU’s ambitious goals for renewable power are driving the development of wave power. In the UK, the current 2 percent of energy produced by renewable means is expected to reach 10 percent by 2010.

Power in motion

The Pelamis Wave Energy Converter is a semi-submerged, articulated structure composed of four cylindrical steel sections linked by hinged joints. The sausage-shaped machine has a 3.5 meter diameter. Moored at its nose, the Pelamis points into the dominant wave direction. Waves travel down the length of the machine, causing hinged joints between the sections to vacillate.

"The up, down, side-to-side motion pumps high-pressure fluid to hydraulic motors through smoothing accumulators," explains Carcas. "The hydraulic motors drive electrical generators to produce power, which is fed down umbilical cables to a single subsea cable to shore, where it is tied into the land-based power grid.

“Fifteen years ago, who would have thought Europe would be producing 20,000 megawatts of the power it consumes from wind?” says Erskine. “Maybe in 10 years time, wave power will also be a major energy supply source.”
He is optmistic waves farms can be developed offshore Norway.

“Along the Norwegian coast there are many sites with ideal conditions. A combination of technological improvements to make production less expensive and international incentives, like green certificates (the guaranteed sale of power based on renewables), can make this all very interesting.”

HYDROGEN FARMING

ocean wave energyHydrogen from ocean water made from the power of the ocean waves!


 

 Water has more power in it than fossil fuels and no emission except water. People in the future will not believe that it took us so long to figure it out.
This system just hangs from the surface of the ocean and activates as the floats transfer the heavy weight of the grid of beams back and forth as the waves pass over. The float has a rod on the bottom that moves in and out of the float as the float pulls harder and then releases.
The movement of the rods activates a generator inside the float. A small raft that has equipment on it to extract hydrogen from the sea water will be connected to the grid and be powered by the floats. A pump on the raft will pump the hydrogen into the balls. Boats will come every day and collect the hydrogen or the ball itself and leave a empty ball.
Electricity, hydrogen and clean water may only be the beginning of what can be achieved by getting leverage on the ocean.
New up-date Jan. 4, 2007
   Prototype #22 is ready for ocean test this weekend. The component was bought straight off the shelf with very little modification and just bolted in the float.
 

New update- Jan. 3 2007

 Prototype #21 was tested in big ocean swells last week. The top of the swells where wider than the small prototype. To test it in those condition, the prototype will have to be longer. Great news on the development of the components, the conversion of energy is done differently than originally planned. The new way eliminates the long spring,gear rod, all components in the float and ads another aspect of leverage. The component can be bought right off the shelf. The dependability is better and the cost would be greatly reduced. It should produce energy in even smaller waves.

Hydrogen farms promise limitless power
 

PLANS are under way to grow the fuel of the future in "hydrogen farms" in Wales.

With the world starting to panic over rocketing temperatures and oil prices, hydrogen has a simple, seductive appeal.

And Wales could be at the forefront of the hydrogen revolution, saving us from abandoning our cars or dimming the lights, it was claimed last night.

Hydrogen promises limitless energy with no pollution, drinkable water being the only emission from its use.

But the barrier to a hydrogen economy is production because, to release hydrogen from water, an electric charge is necessary and most electricity is produced by fossil fuels.

But now the Carmarthenshire Energy Agency is embarking on a joint project with Ireland to produce hydrogen from trees in a series of farms in West Wales.

The Wales and Ireland Rural Hydrogen Energy Project aims to release hydrogen contained in fast-growing willow trees.

Hydrogen from renewable resources like trees can be obtained by the use of microbes to break down the willow into methane and hydrogen gas.

Or, alternatively, willow can be used to fuel electricity to produce hydrogen, the growing crops "paying back" the atmosphere for any carbon dioxide produced in electricity production.

Another possibility includes the use of solar power to release hydrogen into its useful molecular form as a gas.

Guto Owen, manager of the Carmarthenshire Energy Agency, said, "Hydrogen is a clean, pollution-free form of energy which is emerging as a major player in combating climate change.

"It has been touted as the fuel of the future in replacing fossil fuels. Governments and companies around the world are investing heavily into research and development projects which can realise hydrogen's huge potential.

"As countries which share similar characteristics in terms of their natural rural environments, Wales and Ireland are ideally placed to take full advantage of this potential.

"The opportunities are limitless and the countries which can develop significant hydrogen supplies will stand to gain enormous economic, social and environmental benefits. "

Dr Richard Dinsdale, of the University of Glamorgan, who is involved in the project, said, "The Hydrogen Research Unit at the University of Glamorgan conducts national and international leading research into sustainable hydrogen energy technologies.

"The Hydrogen Farm concept was identified as part of the Objective One-funded 'Hydrogen Wales' project and it provides an ideal route for the development of research performed in Wales into technologies which can provide social and economic benefit to rural areas.

"It will also address national and international issues such as security of energy supply and global climate change."

The hydrogen would power cars and other vehicles through the use of fuel cells.

There are hydrogen fuel cell motors already in operation in Canada, the USA and other countries and, notably, on London's RV1 bus route.

These fuel cells are not new. They were invented in 1839 by a Swansea lawyer, Sir William Robert Grove, who called his original device a "gas battery".

It consisted of two platinum porous electrodes each enclosed in a glass cylinder. One glass cylinder contained hydrogen and the other oxygen.

The £170,000 pilot project to develop phase one of the Wales-Ireland partnership on hydrogen energy and develop a blueprint for the Hydrogen Farm will last until March 2008.

Phase two will involve constructing a viable demonstration facility for hydrogen production with commercial spin-offs.

 

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