A Brief Overview of Wave Power Technologies/Statistics
How much wave power’s out there?
http://www.
oceanpd.
com/Resource/Worldresourcemap.
html
This map of available wave power gives you an idea of what could be out there… though they
don’t site a source or explain how they got these numbers.
I think its most useful in...
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A Brief Overview of Wave Power Technologies/Statistics How much wave power’s out there? http://www. oceanpd. com/Resource/Worldresourcemap. html This map of available wave power gives you an idea of what could be out there… though they don’t site a source or explain how they got these numbers. I think its most useful in comparing wave power potential in different parts of the world—notice that wave power seems to be the greatest around Britain (where the bulk of the research is being conducted) but also notice that the highest value is 102… near Alaska/Western Canada/Washington State. East Coast numbers are mid-range. They also mention on this page that wave power is concentrated in the top 50 meters of the sea (which intuitively makes sense), indicating that devices need-not be deployed very far below the surface (or below the surface at all)—of course this becomes less than ideal during storms when stuff on the surface is most prone to damage. Check this out: http://www. r-p-a. o
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- 1 WILLIAM DICK WAVEBOB LIMITED
Tokyo, March 12th 2010
Blue power and Green Ireland
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IEA-OES
INTERNATIONAL ENERGY AGENCY
IMPLEMENTING AGREEMENT ON OCEAN ENERGY SYSTEMS
annual report 2007
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Aquatic Renewable Energy Technologies (Aqua-RET)
is an aquatic renewable energy e-learning tool funded by the EU Leonardo Da Vinci Programme.
Revision 0.
1 - December 2008
Device Name,
Lead Organisation ,
Website, Country
Technology Type Brief Description and picture
Seaflow / Seagen
Marine Current Turbines Ltd
www.
marineturbines....
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Aquatic Renewable Energy Technologies (Aqua-RET) is an aquatic renewable energy e-learning tool funded by the EU Leonardo Da Vinci Programme. Revision 0. 1 - December 2008 Device Name, Lead Organisation , Website, Country Technology Type Brief Description and picture Seaflow / Seagen Marine Current Turbines Ltd www. marineturbines. com UK Horizontal Axis Turbine SeaGen consists of twin horizontal axial flow rotors of 15m to 20m in diameter (the size depending on local site conditions), each driving a generator via a gearbox much like a hydro-electric turbine or a wind turbine. The turbines are expected to be rated from 750 to 1500kW per unit and can be grouped in arrays. They have a patented feature by which the rotor blades can be pitched through 180 o in order to allow them to operate in bi-direction flows – that is on both the ebb and the flood tides. The twin power units of each system are mounted on wing-like extensions either side of a tubular steel monopile some 3m in diamet
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Proceedings of the Eleventh (2001)hlternational Offshore and PolarEngineering Conference
Stavanger, Norway, June 17-22, 2001
Copyright © 2001 by TileInternational Society of Offshore and PolarEngineers
ISBN 1-880653-51-6 (SeO; ISBN 1-880653-52-4 (VoLI); ISSN 1098-6189(SeO
Comparison of 0.
6m Impulse and Wells Turbines for Wave Energy...
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Proceedings of the Eleventh (2001)hlternational Offshore and PolarEngineering Conference Stavanger, Norway, June 17-22, 2001 Copyright © 2001 by TileInternational Society of Offshore and PolarEngineers ISBN 1-880653-51-6 (SeO; ISBN 1-880653-52-4 (VoLI); ISSN 1098-6189(SeO Comparison of 0. 6m Impulse and Wells Turbines for Wave Energy Conversion Under Similar Conditions A. Thakker, P. Frawley, H. B. Khaleeq and E. S. Bajeet University of Limerick Limerick, Ireland ABSTRACT This paper presents a comparison of 0. 6m Impulse and Wells turbines with same hub to tip ratio of 0. 6 for wave energy power conversion under similar conditions. A 0. 6m Wells turbine rotor with a solidity of 0. 6, with guide vanes, was tested in a 0. 6m test rig. Similarly, an Impulse turbine rotor consisting of 30 blades and with a set of symmetrical guide vanes on both upstream and down stream sections was tested under similar flow as well as testing conditions. This paper reports the comparison of performa
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50 DECEMBER | 2010
A Model for
offshore
InnovAtIon
the UnIted stAtes governMent has set a
goal of using wind energy to generate 20 percent
of the nation’s electricity demand by 2030.
As
the U.
S.
looks to generate more wind energy onshore and expand into the technically challenging offshore wind market, it will not only need
to...
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50 DECEMBER | 2010 A Model for offshore InnovAtIon the UnIted stAtes governMent has set a goal of using wind energy to generate 20 percent of the nation’s electricity demand by 2030. As the U. S. looks to generate more wind energy onshore and expand into the technically challenging offshore wind market, it will not only need to innovate, but also learn from other countries’ approach to the installation, construction, and maintenance of offshore wind projects, which are moving farther and deeper than previously thought possible. Scotland has already shown that it is a powerhouse in the renewable energy industry. The Scottish government recently announced its aim to generate 80 percent of Scotland’s electricity consumption through renewable sources by 2020, primarily through wind power. While these targets may seem ambitious, they are certainly not unrealistic; Scotland has fantastic wind energy resources—25 percent of the European total—and there are plenty of opportunities to gene
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Bølger – fremtidens energikilde
af Povl-Otto Nissen
Rundt om i verden arbejdes der for nuværende på op mod hundrede projekter, og der opstår stadig nye
idéer.
Nogle af de udenlandske, der er længst fremme, er listet op på bølgekraftforeningens hjemmeside
www.
waveenergy.
dk/index.
php?page=22&sessionno=&lang=dk .
Endnu...
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Bølger – fremtidens energikilde af Povl-Otto Nissen Rundt om i verden arbejdes der for nuværende på op mod hundrede projekter, og der opstår stadig nye idéer. Nogle af de udenlandske, der er længst fremme, er listet op på bølgekraftforeningens hjemmeside www. waveenergy. dk/index. php?page=22&sessionno=&lang=dk . Endnu flere på idéplanet vil kunne ses på adressen http://peswiki. com/energy/Directory:Ocean_Wave_Energy . Et af de udenlandske projekter, der er længst fremme er det britiske Pelamis, der er et slangelignende ponton-system. Systemet har været testet ved Portugals vestkyst, men er nu trukket hjem til yderligere optimering. I sin seneste version består maskinen af fem rørformede pontoner, der er koblede så de kan bevæge sig i to retninger. Energioptagelsen finder sted i hvert af leddene med to hydrauliske pumper, der leverer tryk til en hydraulikmotor, som igen trækker en generator. Se nærmere på www. pelamiswave. com . Der arbejdes også med vippende hængslede pontoner
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2007 Survey of Energy Resources World Energy Council 2007 Wave Energy
550
COUNTRY NOTES
The following Country Notes on Wave Energy
have been compiled by Tom Thorpe and the
Editors.
Every effort has been made to be
comprehensive by making contact with all
known wave energy developers.
However, it is
not an exhaustive list because...
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2007 Survey of Energy Resources World Energy Council 2007 Wave Energy 550 COUNTRY NOTES The following Country Notes on Wave Energy have been compiled by Tom Thorpe and the Editors. Every effort has been made to be comprehensive by making contact with all known wave energy developers. However, it is not an exhaustive list because information is difficult to obtain on some countries and new wave energy devices are being continually conceived. Inclusion of a technology in these notes does not indicate endorsement of that technology. Indeed, there are numerous technologies under development (including some at the prototype stage) that are likely to be uneconomic, if not technically unfeasible. Wave energy is an immature technology and therefore there are only a few prototype devices installed worldwide, some of which are precursors to the installation of a ‘farm’ of devices. These Country Notes focus on wave energy activities within each country, with no reference to the levels of de
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Control Strategy Development for an Inverter Controlled Wave Energy Plant
R.
G.
Alcorn, T.
D.
Finnigan1
1
Energetech Australia Pty Ltd.
1 The Avenue
Randwick
Sydney
Australia
NSW 2031
Phone: +61 2 9326 4237, fax: +61 2 9326 6277, e-mail: ray@energetech.
com.
au, tim@energetech.
com.
au
Abstract This paper will introduce the...
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Control Strategy Development for an Inverter Controlled Wave Energy Plant R. G. Alcorn, T. D. Finnigan1 1 Energetech Australia Pty Ltd. 1 The Avenue Randwick Sydney Australia NSW 2031 Phone: +61 2 9326 4237, fax: +61 2 9326 6277, e-mail: ray@energetech. com. au, tim@energetech. com. au Abstract This paper will introduce the Energetech wave energy conversion system and describe its main elements of structure, turbine, generator, instrumentation and control systems. The concept of a parabolic wall which focuses the wave energy onto an oscillating water column (OWC) will be shown. The OWC converts the wave motion to pneumatic energy and then to kinetic energy in air flows suitable for mechanical conversion by the Energetech variable pitch turbine. The paper will show the main points of the station design which is due to have its first pilot plant commissioned by end 2004, 100km south of Sydney, Australia. The paper will describe the development of a wave to wire simulation used to
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