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Topic: Wave power

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In the News (Mon 30 Nov 09)

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	Wave Energy Wave Power Clean Renewable Electricity Generation - Wavegen
		The Limpet unit on Islay has an inclined oscillating water column (OWC) that couples with the surge-dominated wave field adjacent to the shore.
		The design of the air chamber is important to maximise the capture of wave energy and conversion to pneumatic power.
		The turbines are carefully matched to the air chamber to maximise power output.
	www.wavegen.co.uk /what_we_offer_limpet_islay.htm (141 words)

	Urban Ecology Australia - Wave Power
		Wave power is a renewable form of electricity derived from energy in ocean waves.
		Wave power, generated by a number of facilities located along suitable sections of the Australian coastline, could partly substitute for greenhouse intensive electricity from from coal fired stations.
		At a wave power station, the waves arriving cause the water in the chamber to rise and fall, which means that air is forced in and out of the hole in the top of the chamber.
	www.urbanecology.org.au /topics/wavepower.html (724 words)

	Wave power - Wikipedia, the free encyclopedia
		Though often co-mingled, wave power is distinct from the diurnal flux of tidal power and the steady gyre of ocean currents.
		Wave size is determined by wind speed and fetch (the distance over which the wind excites the waves) and by the depth and topography of the seafloor (which can focus or disperse the energy of the waves).
		Wave power is expressed in kilowatts per meter (at a location such as a shoreline).
	en.wikipedia.org /wiki/Wave_power (2863 words)

	BBC News \| SCI/TECH \| How it works: Wave power station
		The Islay wave power generator was designed and built by Wavegen and researchers from Queen's University in Belfast and has financial backing from the European Union.
		However, large-scale on-shore wave power generating stations could face similar problems to those encountered by some windfarm projects, where opposition has focused on the aesthetic and noise impact of the machinery on the environment.
		Wave power supporters say that the answer lies not in huge plants but in a combination of on-shore generation and near-shore generation (using a different technology) focused on meeting local or regional needs.
	news.bbc.co.uk /1/hi/sci/tech/1032148.stm (528 words)

	Wave Power Resurgence?
		In the early 1980s, wave power was going to be the bright new future for energy, but in a government evaluation of how much the electricity would cost to produce, someone moved a decimal point -- and made it 10 times more expensive.
		There are those on the sea shore, using the power of the waves as they reach the end of their journey, but larger scale possibilities come from machines anchored out to sea.
		Wave power at this price could provide 10% of Britain's energy needs, but it could be more; no one will really know until the work is done.
	www.sovereignty.org.uk /features/eco/newave.html (1795 words)

	WAVE POWER (Site not responding. Last check: )
		Power from waves may be the future for a reduction in the use of fossil fuels.
		Wave energy is produced by the conversion of potential and kinetic energy of ocean waves into electricity.
		Harnessing wave power is an alternative method of production of energy which falls within the bounds of the scheme, and a project to install a WEC has been given the go ahead to install two converter devices in Islay, West Scotland.
	helios.bto.ed.ac.uk /resman/nrm/wave_power.htm (3604 words)

	WEC Survey Of Energy Resources 2001 - Wave Energy
		The power in the wave fronts varies in these areas between 30 and 70 kW/m with peaks to 100kW/m in the Atlantic SW of Ireland, the Southern Ocean and off Cape Horn.
		At present all power in the Maldives is provided by diesel generators: conceptually, a proportion of these might be replaced by floating wave power vessels tailored to the needs of each particular location.
		Sea Power is also studying the possibility of a joint venture to participate in the construction of a wave power station off the coast of Cornwall.
	www.worldenergy.org /wec-geis/publications/reports/ser/wave/wave.asp (5580 words)

	School of Engineering: New and Renewable Energy Group : Wave Power - Durham University (Site not responding. Last check: )
		Most developments in wave power have concentrated on converting the wave energy into a form which can be converted into electrical energy by conventional high speed rotary generators.
		This project is aimed at simplifying the method of conversion of wave power by the use of low speed electrical generators driven directly by the reciprocating action of the waves.
		Power recovery from the WEC is an important aspect of the project.
	www.dur.ac.uk /engineering/nareg/research/wave (304 words)

	Ocean surface wave - Wikipedia, the free encyclopedia
		Ocean surface waves are surface waves that occur at the surface of an ocean.
		The speed of the surface wave is also called celerity as it corresponds to the speed of the shape of the wave, note that this is not directly related to the speed of the water particles.
		Such waves are distinct from tides, caused by the moon and sun's pull, tsunamis that are caused by underwater earthquakes or landslides, and waves generated by underwater explosions or the fall of meteorites.
	en.wikipedia.org /wiki/Ocean_surface_wave (1598 words)

	Britain Seeks Wave Power
		Wave and tidal stream machines are the latest exploratory technology in the rush to find alternative energy sources to replace fossil fuels with soaring price tags.
		But the global wave industry is still small and Britain wants to develop it on a large commercial scale and then export the technology.
		The Wave Hub would be located 12 to 15 kilometres (10 miles) off the white sandy beach at Hayle in Cornwall and cover an area up to 20 square kilometres (7.7 square miles).
	www.rense.com /general58/powser.htm (746 words)

	bimco (Site not responding. Last check: )
		Thus, a water particle in a wave, is not transported in the direction of the wind, but is influenced by its neighbouring particles, into performing a perpetual circular movement.
		It is reasonable to assume, that wave power will first be exploited along the westward coasts of the European countries, outside California and the eastward coasts of the Japanese islands.
		It is the shape of the aggregate and the laws of nature, that gear the power of the wave into a rapid, steady speed, which is a requirement for the generator.
	www.waveplane.com /artikler/bimco.htm (2571 words)

	Water Power Presents: Wave Power (Site not responding. Last check: )
		When waves hit an OWC, the air inside is compressed and forced through air turbines.
		Many are designed to float in the ocean, and can be damaged by powerful waves and storms.
		Also, to get the most energy from the waves, OWC's should have two-way turbines, so that air can be pushed out or sucked in, always creating energy.
	waterpower.hypermart.net /wave.html (243 words)

	Wave Power
		Ocean waves are a form of wind energy that is concentrated within surface seawater.
		Friction develops between air and water as wind blows across the water, and waves are produced as energy is transferred between these two elements.
		There is therefore the potential to exploit a great deal of energy from wave power.
	www.ace.mmu.ac.uk /eae/Sustainability/Older/Wave_Power.html (237 words)

	Wave Wattage (Site not responding. Last check: )
		Wind and wave power are growing industries, and they offer a relevant context for you to discuss various science and math concepts with your students.
		California's power crisis two years ago was caused by a number of factors: a shortage of electrical generation inside the state, reduced electricity available to import from other states, and growth in electricity demand by industry and consumers.
		Wave energy is intended to decrease use of older, traditional power stations, such as those that burn oil, gas, or coal, or nuclear power plants.
	www.riverdeep.net /current/2002/04/040802t_power.jhtml (1793 words)

	Ocean and Sea Wave Power -- Harnessing Energy from the Sea
		Swell magnet stokes support for wave power - Hugh-Peter Kelly, the founder of Trident Energy, uses the up and down motion of a floating buoy to move an electrical coil along a stack of magnets, which generates an alternating current in the coil.
		Wave Farm Potential off UK Coast - A project off the UK coast continues to provide key data for developers keen on tapping the power of the ocean waves in the Atlantic.
		Oregon may lead future of wave energy - Electrical engineers at Oregon State University have pioneered the development of technologies to take advantage of wave power in ways that are reliable, maintainable and able to survive a hostile ocean environment.
	freeenergynews.com /Directory/Wave (1798 words)

	Earthbeat - 26/01/2002: Wave Power
		The wave power device looks like a large curved concrete wall 40-metres long, with a box-like chamber in the centre of it.
		That air is powered by the waves, and as the waves fall, it creates a vacuum inside the chamber and sucks air back from the other direction.
		And so we’re actually able to capture a much greater wave front than would normally be the case, by directing the waves via this parabola into this chamber, which acts like a blowhole.
	www.abc.net.au /rn/science/earth/stories/s472910.htm (1276 words)

	Big Wave Power Portable Power Solutions
		It is a next-generation universal power adaptor and portable wireless device charger.
		Once fully charged you have a convenient, dependable power source for your personal electronics.
		References on the Big Wave Power Inc. web site or printed material to any specific commercial products, process, service, manufacturer, or company are for display purposes only and does not constitute its endorsement or recommendation by Big Wave Power Incorporated.
	www.bigwavepower.com (215 words)

	WorldChanging: Tools, Models and Ideas for Building a Bright Green Future: Wave Energy
		Built in the right locations, wave power generation can be as inexpensive as wind -- that is, competitive with more traditional power technologies (and, I would argue, even cheaper when externalities are added in).
		Wave energy conversion devices have a very low profile and are located far enough away from the shore that they are generally not visible.
		Orkney won't be alone for long: a program is underway to test wave power systems off the coast of Spain, a 254 megawatt tidal power system (a similar technology) is underway in South Korea, and a smaller tidal power system is planned for New York's East River.
	www.worldchanging.com /archives/002075.html (791 words)

	Energy Resources: Wave power
		There are several methods of getting energy from waves, but one of the most effective works like a swimming pool wave machine in reverse.
		A company called Ocean Power Delivery are developing a method of offshore wave energy collection, using a floating tube called "Pelamis".
		This long, hinged tube (about the size of 5 railway carriages) bobs up and down in the waves, as the hinges bend they pump hydraulic fluid which drives generators.
	www.darvill.clara.net /altenerg/wave.htm (389 words)

	wave power (Site not responding. Last check: )
		Teamwork Techniek a Netherlands based organisation have an exciting new product for harnessing the power of the waves, they claim that their product, the Archemedes Wave Swing (AWS), is competitive with other energy generation technologies.
		Sea heave is caused by the action of the wind on the water surface, in turn wind energy is caused by solar energy but with waves during the process of conversion the energy is concentrared more and more, from 100w/m2 upto a level of 100kw per wave front.
		Also wave energy is reliably present even during calm periods, unlike wind energy proper, so wave energy can also be considered as stored wind energy.
	easyweb.easynet.co.uk /~friendly/wave.html (385 words)

	Wave Power - Alternative Energy Available Today : TreeHugger
		The oldest design I found is the Limpet (Land Installed Marine Powered Energy Transformer) by Wavegen and is located on the island of Islay, off Scotland’s west coast.
		Ocean Power Technologies from New Jersey has a great website describing why ocean power has significant advantages over other energy generation, including wind and solar (I think all have their place).
		Ocean Power Delivery LTD from Edinburgh has developed a long buoy dubbed the ‘Pelamis’ that takes advantage of the swell of a wave.
	www.treehugger.com /files/2005/04/wave_power_alte_1.php (1448 words)

	Wave Energy Wave Power Clean Renewable Electricity Generation - Wavegen
		We are experts in wave energy technology, project development and management, as well as current and potential applications of wave energy.
		Our head office is in Inverness, Scotland where we also operate state-of-the-art wave power research and development facilities.
		Harnessing the immense wave power in the world’s oceans can be part of the solution to our energy problems.
	www.wavegen.co.uk (174 words)

	Wave power - Canada - North America - World - Travel - smh.com.au
		Standing waves and overfalls 2.5- to 3-metres high danced in a frenzy that extended a kilometre from the cape.
		We had witnessed the raw power of the tide, though, and would never forget it.
		The only sound was the squawk of the gulls and the lapping of gentle waves.
	www.smh.com.au /news/canada/wave-power/2006/04/26/1145861416351.html (1632 words)

	Wave Arts Power Suite
		Power Suite is a bundle of several Wave Arts products, but each one is available separately.
		The superb metering keeps you apprised of variants in input signal power, the amount of compression and gating being applied, and the output peak and average levels.
		Wave Arts hasn’t really solved the adjustment problem (although it’s equally easy to make a parameter change to all six bands as it is to one band), but they’ve made huge strides in letting you see the results of those adjustments.
	www.eqmag.com /story.asp?sectioncode=235&storycode=7673 (1704 words)

	HUMBOLDT COAST / Wave power plan gets a test / Town hopes new device will tap surf for energy
		It's hardly the first cheekily named gadget someone has peddled as a means of harnessing the power of the sea.
		Some systems have managed to move from drawing boards to the sea, where they are actually producing small amounts of power, including such projects as the Pelamis in Scotland and the Limpet in Ireland.
		The devices typically produce what's known as low-frequency power, which can be difficult and expensive to convert to high-frequency electrical grids.
	sfgate.com /cgi-bin/article.cgi?f=/c/a/2004/08/04/BAGN382BIC1.DTL (1064 words)

	Marine Energy - Wave Power
		The first commercial wave generator in the world is situated near the small hamlet of Portnahaven on the Isle of Islay.
		OPD have concluded sea trials of their P-750 device and it was moved to its new test bed at EMEC in August 2004 to coincide with the official opening of the EMEC facility.
		Other companies involved in the international wave energy market are AquaEnergy Group from the USA and Denmark's Wave Dragon ApS with their Aquaboy and Wave Dragon devices respectively.
	www.hie.co.uk /argyll/wave_power.html (669 words)

	Heat wave pushing power consumption in Central Canada (Site not responding. Last check: )
		Power imports from Quebec, New York and Michigan keep the lights on in about one million Ontario homes.
		Most of the power they sell us is hydro power coming from rivers and dams.
		Power cuts would not only turn off fans and air conditioners during a heat wave but could also have a considerable impact on the real engines of the province's economy, forcing work slowdowns at the big steel plants and automakers.
	www.cbc.ca /canada/story/2005/07/18/heatwave050718.html (1245 words)

	Microwave Power Home Page
		Microwave Power Inc. manufactures solid state microwave amplifiers operating in the frequency range from to 1 to 40 GHz with output power from 10 mW to 500 W. Its proprietary technology is especially designed for broadband and high power.
		Some typical applications include telecommunications, radar, simulators, transmitters and test instrumentation.
		For more information, send us email or phone (408) 727-6666.
	www.microwavepower.com (135 words)

	Planet Ark : UK awards grants for wave, tidal power generation
		Inverness-based Wavegen will receive 2.1 million pounds to harness wave energy from a prototype, building on their experience with the world's first commercial wave power machine on the Isle of Islay.
		"Wave and tidal power have huge potential to supply a significant proportion of the country's future energy needs," Energy Minister Brian Wilson said in a statement.
		A recent report commissioned by the government recommended reconsidering a project to build a huge tidal barrier across the Severn Estuary to generate green power which was shelved in 1987 as being uneconomic.
	www.planetark.org /dailynewsstory.cfm/newsid/19497/story.htm (538 words)

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