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7/31/2019 2009 Global Wave Market Research
1/7
Device Device Type Stage of Development Photo/Website
Wave Dragon
Denmark
Wave Dragon Ltd.
The Wave Dragon is a floating, tapered channel device that uses a
pair of curved reflectors to focus waves toward a ramp. The
overtopping waves collect in a large reservoir behind the ramp
where the water is temporarily stored. This creates a head of
water, which is subsequently released through a number of low-
head turbines and converted into electricity. The turbines are the
only moving parts.
Wave Dragon Ltd took first major step to deploy the Worlds Largest Wave
Energy Converter (WEC) by submitting their Environmental Impact Statement.
Plans are to deploy a 7MW device off the Dale and Marloes Peninsula
(Pembrokeshire, Wales) during the summer of 2008. Through this application,
the Wave Dragon is taking the first step in establishing a 70MW wave power
plant in the Celtic Sea by 2010. The Wave Dragon Project is part funded by
European Objective 1 funds through the Welsh Assembly Government.
www.wavedragon.net
Pelamis
Scotland
Pelamis Wave Power Ltd.
The Pelamis Wave Energy Converter is a semi-submerged
structure composed of cylindrical sections linked by hinged joints.
The wave-induced motion of these joints 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 seabed. Several
devices can be connected together and linked to shore through a
single seabed cable. The devices are held in place by a
combination of floats and weights and are designed to be
deployed 5-10 km (3-6 miles) offshore.
September, 2007 - The UK G overnment has given permitting permission for the
Wave Hub project - Pelamis is one of the four (4) wave device developers
chosen to work with the Wave Hub project. March 2007 - completed work-up
trials in the North Sea. New trials of the first machine to be complete in
Orkney will be followed by installation of commercial wave farm in Portugal.
The wave farm will be installed 5 km (3 miles) off the Portuguese coast, near
Pvoa de Varim. The project will have an installed capacity of 2.25MW and is
expected to meet the average electricity demand of more than 1500
Portuguese households. March, 2009 - Pelamis project has been pulled
indefinitely after a series of technical (buoyancy tank leaks) and financial
setbacks.www.pelamiswave.com
FO3
Consortium of 11
partners from EU-
members
SEEWEC
A floating, half submersible platform built with composites. The
FO3
has a series of wave point absorbers mounted in vertical
hydraulic cylinders, which work in both directions. The vertical
movements of the floating-point absorbers are transformed into
hydraulic pressure. The hydraulic pressure is utilized to generate
power by generators.
2006 - Norwegian authorities granted permission to build a wave power plant
off the island of Karmy on the west coast of Norway. Following wave tank of
the FO3
testing in 2004, a complete laboratory platform at 1:3 scale was
constructed and launched in February, 2005 off the Norway coast and will be
used for data collection.
www.seewec.org
McCabe Wave Pump
Ireland
Hydam Technology, Ltd.
Consists of a series of articulated barges, which generate
hydraulic pressure to resist the motion of the waves. This
hydraulic pressure can then be used to create electricity.
The McCabe Wave Pump was developed by Dr. Peter McCabe with some
assistance from the US Navy. The developers conducted large-scale trials of
the device in the Shannon Estuary, which were completed by 2004. June 2008 -
no recent updates available.
Archimedes Waveswing
Scotland
AWS Ocean Energy Ltd.
The Archimedes Waveswing is a cylinder shaped buoy, fastened
to the seabed. Passing waves move an air-filled upper casing
against a lower fixed cylinder, with up and down movement
converted into electricity. The floater, which compresses gas
within the cylinder to balance pressures, is the only moving part.
A 50MW is expected to generate electricity for 25,000 homes.
In October, 2004, the AWS team declared pilot tests to be 'very successful' with
the technology being fully proven and a total peak power of around 1500kW
having been produced. In February, 2007 AWS secured 2.1million in funding
from the Scottish Executive, which will be used for development and
commercialization. In September, 2007 additional funding was received from
the Carbon Trust, and will gear toward commercial deployment within the next
five (5) years. In May, 2008, new investments from the Shell Technologies
Venture Fun will aid in deploying a demonstration 250KW pre-commercial
prototype at Orkneys European Marine Energy Centre in 2009. This is
expected to lead to the first phase of a commercial demonstration farm in
2011, which may expand to 100 AWS units within three (3) years.
www.waveswing.com
Global Wave Market Research - May 2009
7/31/2019 2009 Global Wave Market Research
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AquaBuOY
British Columbia
Finavera Renewables
The AquaBuOY is a floating buoy structure which utilizes a
cylindrical buoy as a displacer and water acts as a reactor
enclosed by a long vertical tube underneath the buoy. As the
buoy rides the waves, the moving seawater drives a piston inside
the tube, and the motion of the piston in turn drives a two-stroke
hose pump. As the hose elongates its internal volume decreases
to create a pressurized flow of seawater, which turns a turbine.
The power is transmitted to shore by means of a secure,
undersea transmission line.
The AquaBuOY 2.0 was deployed in Pacific off the coast of Oregon in
September, 2007. In December, 2007 Finavera Renewables was granted an
operating license for its Makah Bay, Washington pilot project to construct an
offshore power plant which is expected to generate 1500MW/Year.
November, 2007 - AquaBuOY began taking in water and sank before engineers
had the opportunity to remove it.
www.finavera.com/en/wavetech
PSP
USA
Float, Inc.
A pneumatic floating platform utilizes indirect displacement, in
which the platform rests on trapped air that displaces the water.
The primary buoyancy force is provided by air pressure acting on
the underside of the deck. When needed, air is allowed to flow
from one cylinder to another through a manifold or connecting
orifices. The airflow provides a mechanism to help reduce the
peaks in pressure distribution beneath the structure and provide
platform stability as well as a mechanism for dissipating wave
energy. Directing the moving air through turbo-generators to
produce electrical energy is one means of converting wave
energy into electricity with a PSP.
August, 2006 have a number of projects under active consideration involving
various uses of the PSP which include oil and gas industry applications, floating
yacht harbors, and ocean wave energy conversion. No specific details are
disclosed on the web site.
www.floatinc.com
OMI WavePump
USA
Ocean Motion Int'l
A barge type platform consisting of large buoyant vessels which
ride the wave surface. When a trough passes and a vessel is no
long supported, a heavy ballast mass descends and pressurizes
water in a sleeve type pump. The pressurized water is driven up
through a cavity in the main shaft into the manifold which
combines multiple pump assemblies. The combined pump
outputs drives the hydro-turbine generator, osmosis filters, and
electrolysis unit. The barge type platform consists of 20-35
pumps.
June, 2008 - No detailed project activity reported. Company website states,
Ocean Motion International has achieved much academic success for its
patented technologies and vision. Four independent studies have been
completed in the Gulf of Cadiz, Spain covering concept, structures, risk and
environment. These studies have resulted in a product design that is
impressive in its functionality and relative low cost to construct and operate.
www.oceanmotion.ws
PowerBuoy
USA
Ocean Power Technologies
The rising and falling of waves cause the buoy to move freely upand down. The resultant mechanical stroking is converted via a
power take-off to drive an electrical generator. The generated
power is transmitted ashore via an underwater power cable. An
array of PowerBuoys can be electrically connected together to
provide the desired power capacity.
Santoa, Spain Project hired by Iberdrola S.A. to build a power station off the
northern coast of Spain. Based in Madrid, Iberdrola is one of the largest
renewable energy companies worldwide. OPT reports that the project is in
development; first phase complete; and building the second phase consisting
of a subsea power transmission cable, underwater substation, grid connection,
and the first PowerBuoy unit. May, 2008 OPT and Griffin Energy sign joint
development agreement for western Australian wave power station. The wave
power station would be capable of producing up to 10MW with potential
expansion up to 100MW.www.oceanpowertechnologies.com
MWEC Power Take Off
USA
SARA, Inc.
A shaft transfers wave motion to the magnetohydrodynamic
(MHD) generator which is deep under water. The shaft forces the
conducting fluid through powerful permanent magnets. The low
voltage/high current electricity is generated via MHD interaction.
An electrical converter converts the electrical energy to
commercial quality power and is transmitted to shore from
multiple generating stations and connected to the grid.
SARA, Inc. has designed, built and tested a 100KW MHD generator that is a
laboratory demonstration of a MWEC design and is also developing a deep-
ocean-moored concept that is based on the MHD generator.
www.sara.com
http://www.finavera.com/en/wavetechhttp://www.floatinc.com/http://www.floatinc.com/http://www.finavera.com/en/wavetech7/31/2019 2009 Global Wave Market Research
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The Denniss-Auld Turbine
Australia
Oceanlinx
The water inside the OWC (a chamber which is open underneath
the waterline) rises and falls, compressing and displacing the air
inside, driving it past a turbine which is housed at the narrowest
point in the chamber. The OWC chamber narrows, and the air is
accelerated to its highest velocity as it passes the turbine,
allowing for maximal extraction of the energy. The oscillatory
wave motion causes a similar oscillatory airflow through the
chamber, and the turbine converts energy on both the up and
down stroke. The turbine converts the energy in the airflow intomechanical energy which drives an electrical generator.
Port Kembla Project - Oceanlinxs wave energy generator was successfully
installed in December 2006, a few hundred meters off the eastern breakwater
of Port Kembla harbor. The unit transforms the raw energy from ocean waves
into electricity or desalinated water. When connected to the local power grid
the plant could supply power to up to 500 homes and serve as a valuable test
facility for further technology development. In May 2007, Oceanlinx was
selected as the fourth developer for the Lira28million wave project off the
coast of Cornwall in South West England. In February 2008, Oceanlinx
announced a potential project to supply up to 2.7MW of electricity to the
island of Maui, Hawaii. The wave energy converters (WECs) will be installed
approximately 1KM off the North coast of Maui. A sub-sea cable will run from
the WEC array along the sea-bed with a shore crossing in to the East of Maliko
Bay, where it will feed into a substation on the Maui Electric Company grid.
www.oceanlinx.com
Wavebob
Ireland
Wavebob Ltd.
An axi-symmetric, self-reacting point absorber, primarily
operating in the heave mode. The Wavebob floats largely below
the water surface and is self-reacting and loosely moored. It uses
the lift and fall of waves to pump giant pistons which in turn drive
alternators to generate electricity for delivery via cables back to
the shore.
In March 2006, a one quarter scale prototype was installed in Galway Bay.
Developers have an ongoing test program of development at the test site. In
April 2007 it was announced that Wavebob has partnered with US energy
company Chevron to provide technical consulting services. The partnership
will look at converting ocean wave energy into useful power. In October 2007,
Wavebob announced that their prototype device is producing electricity.
www.wavebob.com
Sperboy
United Kingdom
Embley Energy
An Oscillating Water Column (OWC) device consisting of a
buoyant structure with a submerged & enclosed column. All of
the plant, turbines, generators, and associated system facilities
are housed above the OWC on top of the buoy. The principle of
operation is similar to that of fixed OWCs designed for shoreline
and fixed installations, except that the device is capable of
deployment in deep water to maximize greatest energy source,
and the entire body floats and maintains optimum hydrodynamic
interactions for the prevailing and changing wave spectrum.
From 2003-2005, Sperboy completed the Marine Energy Challenge, where
independent consultants investigated its performance in terms of power
capture as well as c arrying out a detailed study of both capital and
maintenance costings to arrive at their prediction for the cost of delivered
power. In 2007, Sperboy announced project work with the Universities of
Bristol and The West of E ngland.
www.sperboy.com
Oyster
Scotland
Aquamarine Power
The Oyster consists of an oscillating wave surge converter fitted
with double acting water pistons fixed to the seabed and
deployed near shore. Each passing wave activates the pump;
which delivers high pressure water via a sub-sea pipeline to the
shore. Onshore, high-pressure water is converted to electrical
power using conventional hydro-electric generators.
In 2006, scale models were tested at Queens University Belfast. In 2007,
Oyster has been fully fabricated and tested. Also has been certified by
independent third parties and ready for installation at EMEC in Ornkey. April
2009 - device has now produced and exported commercially viable electricity
to the grid and the New and Renewable Energy Centre (NaREC) near Newcastle
for the first time.
www.aquamarinepower.com
7/31/2019 2009 Global Wave Market Research
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Wave Rider
USA
SeaVolt Technologies
Wave Rider consists of a special point absorbing buoy which bobs
up and down with wave action on the ocean surface. Electricity is
generated via a small turbine powered by an hydraulic circuit that
captures the slow rolling energy of the wave and converts it into
high-pressure hydraulic fluid flow, spinning a turbine to generate
electricity.
Wave tank tested and now participating in a UK wave research study called the
Marine Energy Challenge. June 2008 no recent updates available.
Mighty Whale
JapanJAMSTEC
The Mighty Whale is a floating oscillating water column device
with three air chambers. Wave action causes the internal water
level in each chamber to rise and fall, forcing a bi-directional
airflow over an air turbine. All three chambers are self-
reciprocating and each turbine has two rotors in tandem
configuration.
Launch in March, 1998. June 2008 no recent updates available.
www.jamstec.go.jp/jamstec/mtd/whale
LIMPET,
Scotland
Wavegen
A shoreline energy converter which uses the principal of an
oscillating water column that couples with the surge-dominated
wave field adjacent to the shore. The design of the air chamber is
important to maximize the capture of wave energy and
conversion to pneumatic power. The turbines are carefully
matched to the air chamber to maximize power output.
One installation on the Island of Islay in Scotland and a second planned
installation with the Faroese electricity company. The Islay installation
performance has been optimized for annual average wave intensities of
between 15 and 25kw/m. The water column feeds a pair of counter-rotating
turbines, each of which drives a 250kw generator, giving a nameplate rating of
500kw. June 2008 - no recent updates available.
www.wavegen.co.uk
PS Frog
United Kingdom
Lancaster University
The PS Frog consists of a pitching/surging paddle about 20m wide
and 15m deep. A handle connects the blade to a massive fixed
ballast compartment, and an arm carrying a power take-off mass
is pivoted to the top of the blade. The arm and mass move
approximately harmonically, and power is extracted through their
relative movements
Some tanks testing has been completed. There are no immediate plans for
deployment. January 2005 participating in the UK Marine Energy Challenge.
June 2008 no recent updates available.
Ocean Wave Energy
Converter (OWEC)USA
Ocean Waver Energy Co.
Wave activity on buoys induces relative motion between
driveshafts and remaining module portions to drive novel
transmissions and electrical generators. Electrical power isadditively combined, within each module housing, and
interconnected with other modules to culminate at output
terminals.
June 2007 - Last noted that engineers were to refine OWECOs third direct
drive generator. The new design raises relative speed and power efficiency
with substantially reduced materials. Initial wave tank tests where electrical
outputs were slightly low for scale. The mechanisms of the apparatus
functioned as intended and measurable electrical energy was generated fromwave motion. Testing was valuable for successfully proving the concept and
divulging considerations for subsequent OWEC design development. While
promising, wave tank tests also revealed meritorious deficiencies.
www.owec.com
Wave Energy Converter
Activator (WECA)
Greece
DaeDalus
Designed for mounting on the run up wall of breakwaters or
other rigid or floating structures. Functionally, it serves the
purpose of absorbing most of the energy of the impacting waves
and turns it into compressed air (subsequently converted into
electric power or other forms of work).
June 2008 no recent updates available.
www.daedalus.gr
http://www.wavegen.co.uk/http://www.wavegen.co.uk/7/31/2019 2009 Global Wave Market Research
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Danish Point Absorber
Denmark
Danish Wave Energy
Program
This point absorber system is built from small pontoons each
approx. 10 meters in diameter. The pontoons can be mass-
produced and each pontoon absorbs a maximum of 100-140 kw
from the waves. The pontoons activate pumps situated on the
sea bed which transforms the energy via a hydraulic system to
turbines and generators.
The practical tests performed off Hanstholm in the North Sea have not been
without difficulties. In the first system (45 kw in 1989), the valves and cable
joints failed causing the pontoon to come adrift. The following 1 kw
experiment was launched in the summer of 1994 but after three months the
pontoon sank due to corrosion. After incorporating the experiences of the first
systems, a third attempt was made in May 1995 and this system worked
reliably until it was terminated in January 1996.
Seawave Slot-Cone
Generator
Norway
WAVEenergy AS
The SSG is a wave energy converter based on the wave
overtopping principle utilizing a total of three reservoirs placed on
top of each other, in which the potential energy of the incoming
wave will be stored. The water captured in the reservoirs will
then run through the multi-stage turbine for electricity
production. The use of multiple reservoirs will result in a higher
overall efficiency compared to a single reservoir structure.
Planning a pilot project with a number of partners on the Island of Kvitsy
located in the Bokna fjord adjacent to the Norwegian North Sea. January 2005 -
MST Project In cooperation with Norwegian University of Science &
Technology (NUNU), develop a multi-stage water turbine which can utilize
different heights of water head on a common turbine wheel. The Project is
supported by the Renergi program of the Norwegian Research Council. June
2008 no recent updates available.
www.waveenergy.no
WaveRoller
Finland
AW-Energy
The WaveRoller device is a plate anchored on the sea bottom by
its lower part. The back and forth movement of bottom waves
moves the plate, and the kinetic energy produced is collected by
a piston pump. This energy can be converted to electricity by a
closed hydraulic system in combination with a hydraulic
motor/generator system. WaveRoller is a modular concept. Inpractice this means that the plant capacity is formed by
connecting a number of production modules into a WaveRoller
plant. Each module consists of 3-5 wave elements installed into a
common generation system.
2006 - Design and manufacturing of WaveRoller #1. 2007 - Installation and
commissioning of WaveRoller #1 in Portugal was underway with complete
measurement and analysis of device performance targeted for June 2007.
Plans are to construct a pilot plant in Portugal in 2008. April 2008 -
Deployment of the second proto device in Peniche, Portugal. Data collectedduring the test period will be used for verification of the CFD simulations and
designing of the next generation active controlled WaveRoller unit. First
results will be available in July, 2008.
www.aw-energy.com
WavePlane
Scotland
WavePlane
The water inlet duct is divided into four (or more) pockets and
each pocket is smoothly connected to one edge of an outlet pipe
with different points and angles. The multiple pockets system
converts both kinetic and potential energies of the ocean wave
into swirl flow in the outlet pipe.
Built and tested in real sea conditions in Japan. To date the device has not
been used to produce electricity though a 200 kW version is planned but
already has shown the potential for use in oxygenating water, reverse osmosis
and water pumping. June 2008 - no recent updates available.
www.waveplane.com
Wave Rotor
Denmark
ECOFYS
Two types of rotors were combined on the same axis of rotation:
a Darrieus rotor and a Wells rotor. These are respectively omni-
and bi-directional rotors, which can operate in currents of
changing directions. The Wave Rotor captures wave energy from
the circulating water particles in the waves creating local
currents. The developers discovered that these circular currents
can directly drive a rotor.
A prototype was developed by ECOFYS together with Danish partner Eric
Rossen. Tests were to take place in the summer of 2002 in the Nissum
Bredning fjord on the north-west coast of Denmark. The Wave Rotor would be
mounted to a platform and tested for performance, foundation loads, and
electricity production. The rotor can be grid connected via an inverter and
supply energy to the grid. No information available regarding the results of this
testing. January 2005 - Participating in the Marine Energy Challenge
www.ecofys.co.uk
http://www.waveenergy.no/http://www.aw-energy.com/http://www.waveplane.com/http://www.ecofys.co.uk/http://www.ecofys.co.uk/http://www.waveplane.com/http://www.aw-energy.com/http://www.waveenergy.no/7/31/2019 2009 Global Wave Market Research
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Cylindrical Energy
Transfer Oscillating
(CETO)
Australia
CETO
The CETO is fully-submerged and anchored to the sea floor. Can
be deployed in arrays of multiple units. Returns high-pressure
seawater ashore.
February 2007 The first CETO II prototype was unveiled. February 2008 The
CETO II was deployed in January and has performed as expected following
previous onshore testing. Subsequent CETO II units will be deployed over the
coming months.
www.ceto.com.au
Lever Operated PivotingFloat
USA
Swellfuel
A device comprising a pivoting float and lever arm combinationattached to a beam such that the float and lever arm can unfold
and change orientation to the ocean surface. The devices
pivoting arms allow it to convert ocean energy to other forms.
June 5 although multiple prototypes have been tested (some in ocean
conditions), patents for the technology are still pending. Company is self-
funded and currently looking to commercialize but they believe full-scale
development will take about four more years. The output goal for this
technology is 100kw.
www.swellfuel.com
Mark IV Sloped Buoy
Sweden
Inter Project Services
The sloped IPS buoy is an asymmetric, solo, deep-water,
resonant, slack-moored, wide point-absorber with high-pressure
oil power conversion reacting to an internal water mass which
can be disconnected at a c hosen stroke limit.
Model testing. No update as of January 2005. June 2008 - no recent updates
available.
www.mech.ed.ac.uk/research/wavepower/slo
ped%20IPS/Maritec2001%202.htm
Offshore OWC
Norway
Kvaerner
Oscillating Water Column.
Kvaerner is a holding company. A project in the South Pacific almost lead to
the building of an oscillating water column wave power plant on the south
coast of Tongatapu in the late 1980s. However, the manufacturer, Kvaerner
Brug pulled out of wave power, and it was never built. June 2008 - no recent
updates available.
www.kvaerner.com
Salter Duck
United Kingdom
Edinburgh University
The Duck is a 300-ton floating canister designed to drive a
generator from the motion of bobbing up and down on waves likea duck. It was developed in the late 1970's by a team headed by
Professor Stephen Salter at Edinburgh University. This was one of
several research groups set up after a 1976 judgment by the
Department of Energy that wave power was the most promising
renewable energy source.
The Salter Duck's development was stalled during the late 1980's, even though
it was able to produce energy efficiently. A mistake was made in the cost of
the energy production by a factor of ten. June 2008 - no recent updates
available.
Sea Clam
The Sea Clam is an arrangement of six airbags mounted around a
hollow circular spine. As waves impact on the structure air is
forced between the six bags via the hollow spine which is
equipped with self-rectifying turbines. Even allowing for cabling
to shore, it is calculated that the Clam can produce energy for
around $US0.06kw/hour.
June 2008 - no recent updates available.
No Photo
http://www.ceto.com.au/http://www.swellfuel.com/http://www.mech.ed.ac.uk/research/wavepower/sloped%20IPS/Maritec2001%202.htmhttp://www.mech.ed.ac.uk/research/wavepower/sloped%20IPS/Maritec2001%202.htmhttp://www.kvaerner.com/http://www.kvaerner.com/http://www.mech.ed.ac.uk/research/wavepower/sloped%20IPS/Maritec2001%202.htmhttp://www.mech.ed.ac.uk/research/wavepower/sloped%20IPS/Maritec2001%202.htmhttp://www.swellfuel.com/http://www.ceto.com.au/7/31/2019 2009 Global Wave Market Research
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Tapchan
Norway
A tapered channel (Tapchan) feeds into a reservoir which is
constructed on a cliff. The narrowing of the channel causes the
waves to increase their amplitude (wave height) as they move
toward the cliff face which eventually spills over the walls of the
channel and into the reservoir which is positioned several meters
above mean sea level. The kinetic energy of the moving wave is
converted into potential energy as the water is stored in the
reservoir. The stored water is then fed through a Kaplan turbine.
A demonstration device with rated output of 350 kw began operating in 1985
at Toftesfallen, in Norway until the early 1990s, when work on modifying the
device destroyed the tapered channel. The potential market for such an
approach is limited because the design requires a small tidal range and suitable
coastline. Therefore, this device would be better suited to islands. June 2008 -
no recent updates available.
PendulorMuroran Institute of
Technology and Cold-
Region Port & Harbor
Research Center
Wave action causes oscillation of the plate ("Pendulor"), and the
pendulor compresses fluid in a hydraulic power take off. The
second-generation prototype uses active control for efficient
energy conversion.
The Pendulor wave energy device has been under investigation for over 15
years by the Muroran Institute of Technology. June 2008 - no recent updates
available.
www.muroran-it.ac.jp
OSPREY
Wavegen
The OSPREY rests directly on the seabed and is designed to
operate in the near-shore environment in a nominal mean water
depth of 15m. The pneumatic power of the oscillating water
column is converted to electricity by a Wells turbo generator and
specially designed induction generators.
June 2008 - no recent updates available.
www.wavegen.co.uk
Backward Bend
Duct Buoy
Yoshio Masuda
A floating type wave energy device. It uses an oscillating column
of water in reverse "L" shaped chambers or ducts, such that the
open mouth of the duct is away from the incident waves. The
horizontal limb has an opening to the sea and is submerged under
water. The vertical limb traps a column of air at the upper region
of the duct and a regulated vent allows air to pass in and out
under cyclic pressure and partial evacuation of air due to
oscillating water surface.
June 2008 - no recent updates available.
Swedish HosepumpSweden
Incorporated into the Aquabouy. Floating buoy pumps seawateracross water turbine.
During 1983-1984 a plant of three modules with turbine and generator was
installed in the open sea at Vigna. There were losses of equipment in somesevere storms but the tests proved the feasibility of this approach. June 2008 -
no recent updates available.
Electroactive Polymer
Artificial Muscle
(EPAM)
Japan
SRI International
A buoy-mounted, wave powered generator. It is composed of a
rubbery material that can generate electricity by being stretched
and allowed to return to its original shape.
December 2009 - demonstrated and tested module off the coast of California.
www.sri.com/news/releases/120808.html
http://www.muroran-it.ac.jp/http://www.wavegen.co.uk/http://www.sri.com/news/releases/120808.htmlhttp://www.sri.com/news/releases/120808.htmlhttp://www.wavegen.co.uk/http://www.muroran-it.ac.jp/