H2OMF (((- NEW UNDER CONSTRUCTION ))) Main site click on #1 or #8 http://mfh2o.blogspot.com: 1a..OCEAN SURFACE WAVE & below

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http://www.technologyreview.com/blog/energy/24471/

December 01, 2009
Wave Power Switched On
Another step in a Sisyphean effort
to extract useful energy from the ocean.
By Kevin Bullis
The First Minister of Scotland,
Alex Salmond, recently switched on a machine for converting wave energy into electricity. The machine, called the Oyster, is simple: it's a hinged contraption with one end that rises and falls with the waves, an action that pumps water to an onshore hydro-electric turbine. There are no electronics or generators in the water, which should make it easier to maintain.
Yet, we've got a long way to go before wave power makes any sort of dent in our need for fossil fuels. At two megawatts of power per Oyster, it would take about 400 of them to replace a coal plant, assuming the wave power is as reliable as a coal plant--that's yet to be proven.
Another recent wave project didn't fair too well. The snake-like Pelamis system was installed off of Portugal last year, only to be discontinued after economic and technical difficulties (the latter of which the company says have been addressed).
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www.our-energy.com/ocean_energy.html

peakenergy.blogspot.com/2008_02_01_archive.html

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24 November 2009http://www.renewableenergymagazine.com/paginas/Imagen.asp?Foto=imagen_art/Listado/Otrospavilioninvento.jpg
Awarded local ocean energy project may benefit Barahona town
Santo Domingo.- A project by UNPHU University and the Venezuelan company Nova Oceanic Energy Systems is among the 26 winners of the Global Competition on Climate Adaptation, in the World Development Fair 2009, in which 1,700 worldwide proposals competed.
Moisés Alvarez, the initiative’s coordinator and UNPHU Science Faculty dean said the project presented in Washington is the “Introduction to Energy Converter of Wave Technology (Wave) to Control Beach Erosion and Mitigate the effect of storms or hurricanes (Olas)," with a US$299,215 funding by the World Bank and other organizations.
The project consists of placing a floater (conceived by the company Nova Oceanic, of the Venezuelan Alvaro Atilano) which extracts kinetic energy from waves to then convert to electricity. "This project’s advantage is that besides producing electrical energy it would play the role of a jetty, reducing coastal erosion and it collateral damage.”
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http://www.oceanlinx.com/index.php/our-technology/how-it-works
Ocean waves contain enormous quantities of energy. Harnessing this energy is the objective of the Oceanlinx technology. At the heart of the technology are several simple elements:

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http://www.msnbc.msn.com/id/32545685/ns/technology_and_science-future_of_energy?pg=5#Science_FringeEnergy_090826

Crazy green-energy ideas that just might work
So far these are mostly concepts, but we may be using them in the future

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LARGE PROJECTS RECCOMENDED FOR REVIEW
http://www.aquamarinepower.com/technologies/
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http://cleantechnica.com/category/wave-energy/ 11-7-09 GOOD SITE FOR OCEAN
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http://cleantechnica.com/category/wave-energy/

Australia Gets Wave Power Inspired by Oil Rig Oceanlinx;
October 22nd, 2009
another Australian wave power company that uses the floating oil rig as the model for its wave power began installation this month of its last test before grid-connecting a 2.5 MW unit off the coast of Port Kembla, near Sydney.

It should be sending power to the Australian grid early next year. Unusually, for wave power concepts, this converts the energy of ocean swells under the platform into air pressure which turns a wind turbine. The company’s previous demo in 2007 proved it works.Read the rest of this entry » ------------------------------------------------------------------------------------------------- http://cleantechnica.com/category/wave-energy/

WaveRoller Uses Swinging Door for Underwater Wave Energy

November 2nd, 2009

The simplest ideas are best at harnessing underwater wave energy. You don’t want lots of parts in the harsh marine environment (for machine parts) under the ocean. Here’s an idea from a diver from Finland who was almost hit in the head by a shipwreck door that inspired this invention: the WaveRoller.
Now the EU is funding the diver; Rauno Koivusaari, with $4.4 million for his company AW-Energy to build the first full scale demo of his invention.
Each one at full size weighs 20 tons and produces 300 KW.Read the rest of this entry »

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www.engineering.leeds.ac.uk/pg/pgt/MSC-CFDima...

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FINAL_DRAFT_23.pdf First Rough Draft Presentation -38 slides
http://www.newsday.com/news/nation/euro-wind-producers-want-billions-for-sea-turbines-1.1443292?localLinksEnabled=false

Euro wind producers want
billions for sea turbines
September 13, 2009
By The Associated Press AOIFE WHITE (AP Business Writer)
BRUSSELS (AP) —
European wind power producers are calling for billions of euros (dollars) in investments to generate energy from wind turbines planted in the sea.
The European Union is aiming to generate a fifth of all its energy from renewable sources by 2020 to lessen reliance on imported oil and gas and meet climate change goals to reduce greenhouse gas emissions.
Wind power will likely play the major role and could generate up to 16 percent of all EU energy — or a third of all electricity — by 2020, the European Wind Energy Association says.
The industry says this depends on governments helping them make a major push to develop offshore wind farms over the next 20 years. They say it could replace power from older coal-fired electricity stations and help meet Europe's growing energy demand.
Some €57 billion will be needed to develop these wind farms
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earth2tech.com/page/2/?s=iberdrola
Ocean Power Tech Seals $3M Navy Deal
November 6th, 2008
The U.S. military is living up to its promise of leading the country in green energy adoption with the Navy’s awarding of a $3 million contract to marine power startup Ocean Power Technologies (OPT). The contract is for ocean testing of an advanced version of the company’s autonomous PowerBuoy that converts the kinetic energy of oceanic waves into electricity, and is part of the Navy’s Deep Water Active Detection Systems (DWADS) program, which uses sophisticated oceanic data-gathering and communications systems. The PowerBuoy will be used to power those systems.
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www.gtmresearch.com/.../
October 6, 2008 Ocean Power Technologies
Wave energy technologies are the most heavily researched and funded sector in the ocean power industry. Out of the 35 companies analyzed in this report, 24 are developing wave energy technologies. This is likely due to the scale and availability of the ocean wave resource when compared to the marine current and tidal stream resource. The potential to bring renewable electricity to the nearly 50 percent of the world's population living within 60 miles of a coastal area is another factor driving the outsized development of wave energy technologies.

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www.windwavesandsun.com/

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www.unenergy.org/index.php?p=1_49_Wave-Power
Remove frame

Company
Medium
Technology
Pelamis Wave Power
Wave
Attenuator
Wave Star Energy
Wave
Attenuator
AWS Ocean Enegy
Wave
Point Absorber
Wave Dragon
Wave
Overtopper
WavGen
Wave
Oscillating Water Column
Oceanlinx

Wave Oscillating Water Column SyncWave Energy
Wave Point Absorber WaveRoller
Wave Oscillating Wave Surge Converter WAVEenergy
Wave Overtopper Seabased
Wave Point Absorber Offshore Wave Energy
Wave Oscillating Water Column ORECon
Wave
Oscillating Water Column
SeaPower Pacific (ceto)
Wave
Oscillating Wave Surge Converter
Ocean Power Technologies
Wave
Point Absorber
Finavera Renewables
Wave
Point Absorber
Ocean WaveMaster
Wave
Attenuator
Wave Energy Technologies
Wave
Point Absorber
WaveBob
Wave
Point Absorber
Fred Olsen Wave Attenuator
C-Wave Wave Point Absorber
S.D.E Energy Wave Point Absorber
Trident Energy Wave Point Absorber
Ocean Navitas Wave Attenuator
Aquamarine Power Wave/Tidal Point Absorber/Horizontal Axis Turbine
BioPower Systems Wave/Tidal Oscillating Wave Surge Converter/Oscillating Hydrofoil
Verdant Power Tidal Horizontal Axis Turbine
Neptune Renewable Energy
Tidal Vertical Axis Venturi Turbine Marine Current Turbines
Tidal Horizontal Axis Turbine SMD Hydrovision
Tidal Horizontal Axis Turbine Open Hydro
Tidal Open Center Turbine Hammerfest Strom
Tidal
Horizontal Axis Turbine
Ocean Renewable Power Co.
Tidal
Horizontal Axis Venturi Fence Turbine
Scotrenewable
Tidal
Horizontal Axis Turbine
Lunar Energy
Tidal
Horizontal Axis Venturi Turbine
Tidal Generation
Tidal
Horizontal Axis Turbine
Blue Energy
Tidal
Vertical Axis Fence Turbine
Makai (Lockheed Martin)
Ocean thermal
thermal temperature differential
Vortex Hydro Energy
Water currents Induced vibrations Free Flow Power
River currents Hydro Green Energy
River currents HydroVolts
River currents

Ocean, Wave, Tidal, River Power
Pelamis Wave power
According to this presentation by Pelamis, each of their installations is designed to generate 750kW with up to 40% availability. The Pelamis design is a 140 meter long 3.5M diameter, 4 main segment with 3 joint, which sits semi-submerged facing into the oncoming ocean waves. Pelamis first commercial installation 3 miles off the coast of Acuador, Portugal, consists of 3 units, capable of producing 2.25MW of power at peak output (enough to power 1,500 homes), and of which further plans are underway to install 25 further units with a net peak output of 21MW. The units rely on the motion of the waves to internally pressurize a hydraulic system to drive an electrical generator. Pelamis have indicated over a 1km2 area 40 Pelamis units would have the capacity to generate 30MW of power (peak), or enough to supply 20,000 households with electricity. As well as Pelamis being involved in the UK’s plans to build a WaveHub, it also appears Google may be paying attention having lodged what appears to be a patent incorporating this 10 year old companies design.
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http://www.cdnn.info/news/science/sc070930.html

COOL VIDEO
http://www.youtube.com/watch?v=7TSmYmV23W0
peakenergy.blogspot.com/2008_02_01_archive.html

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www.fujitaresearch.com/reports/limpet.html

updated 03/00

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bbcat.org/OceanCurrentPPaper_000.htm

Figure 2. World-wide average ocean wave-power energy potential
Source: Wave Energy paper. IMechE, 1991 and European Directory of Renewable Energy (Suppliers and Services) 1991 © 2005, Trident Energy Limited

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http://memebox.com/futureblogger/show/1414

Swiss team designs low cost, low maintenance wave power system
December 09 2008 /
While solar power is often described as the
world's great untapped clean source of energy, ocean power deserves as much attention. In fact, it deserves a lot of attention given the expectation that the world will double energy consumption in the decades ahead. And the reality that most of the world's population lives close to an ocean.
Futures oriented energy engineers dream of capturing the steady kinetic and thermal of energy. Unlike solar and wind, ocean energy provides near 24/7 potential utilization.
A Low Mainteance Linear Generator?Now a Swiss team from Upsalla University A Low Mainteance Linear Generator?Now a Swiss team from Upsalla University has developed and tested a novel system. For nearly three years, a wave power plant has stood on the bottom of the ocean a couple of kilometers off the west coast of Sweden, near Lysekil. Rafael Waters, from the Uppsala University Division of Electricity, designed and built the facility as part of his doctoral project.
The team's 'linear generator' generates electricity with the slow up and down movements of the waves. An ordinary generator transforms rotation energy to electricity, and it needs to turn at about 1500 rpm to be efficient. (Images)
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http://www.inhabitat.com/2009/08/05/oyster-generates-electricity-from-waves/oysterpower6/ Oyster Wave Energy Converter puts climate change to good use

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Oyster wave plant by Aquamarine Power

'Oyster' System is a New Way to Harness the Power of Waves
August 4, 2009

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http://www.good.is/post/ocean-motion/

Ocean Motion
Posted by: GOOD
19, 2009

Not all hydroelectric power has to come from dams.
Today,
about 20 percent of the world’s power is hydroelectric. Nearly all of that water-generated energy is made by forcing rivers to flow through dams. But rivers make up just a small percentage of the water in the world. The ocean, however, occupies two-thirds of the Earth’s surface and is constantly moving. That motion can spin turbines to create power, the ocean is full of potential energy just waiting to be tapped

Waves
The first major “wave farm” opened in Aguçadoura Wave Park off the coast of Portugal last year--
Tides
Early tidal power functioned the same as damming rivers, and could seriously damage to the environment. Today, tidal power operates much the same as wind power, creating power ---
Currents
The Gulf Stream flows at a rate of 8 billion gallons per minute—50 times more than all of the rivers in the world put together. Researchers at the Center for Ocean Energy Technology in Florida-----more
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modeldunmanway.com/wave_energy.html
Remove frame THIS IS AN INTERESTING SITE WITH A REAL OCEAN MODEL AND VIDEO EDUCATION CLIP.

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www.agc.army.mil/publicationselnino/

http://www.renewableenergyworld.com/rea/news/article/2009/04/marine-energy-how-much-development-potential-is-yhere
April 30, 2009
Marine Energy:How Much Development Potential Is There?
by Roger J. Bedard, Mirko Previsic, and Brian L. Polagye
How much marine energy is available for development in the U.S.?
This article provides information on the amount of electrical capacity available and extractable from two forms of marine energy: wave and kinetic stream.
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Norbert Wu/Science Faction/Getty ImagesEven waves less impressive than these carry an enormous amount of energy.

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How Wave Energy Works -- SOME GOOD VIDEOS
by Jane McGrath
Browse the article How Wave Energy Works
http://images.google.com/imgres?imgurl=http://static.howstuffworks.com/gif/wave-energy-5.jpg&imgrefurl=http://www.howstuffworks.com/wave-energy.htm/printable&usg=__10_UqDP2P_btF_TdMTZPMitIrJM=&h=302&w=400&sz=31&hl=en&start=43&tbnid=4yIVvieDB-zX8M:&tbnh=94&tbnw=124&prev=/images%3Fq%3DOCEAN%2BWAVE%2BENERGY%2BDIAGRAM%26gbv%3D2%26ndsp%3D21%26hl%3Den%26sa%3DN%26start%3D42

Wave Dragon
In this diagram, you can see how an overtopping device works. After waves topple over a wall into a reservoir, the water drains out of an outlet, where it drives a turbine.
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http://www.daedalus.gr/weca.html

THERE ARE MANY STUDY CHARTS ON THIS SITE At the project assessment, an experimental full scale prototype (a 7 m height and 6 m width model, two joined units used) was considered, so as to actually amply enable a wide variety of manufacturing and engineering aspects to become apparent, prior to advancing into the actual construction. The expected delivered power output is around 20 KW. A substantial amount of post-intermediate research has been completed allowing preliminary simulation and modeling of fluid dynamics, as expected to appear in the areas outside and inside
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http://www.daedalus.gr/prdre1.html

www.ndbc.noaa.gov/educate/pacwaveans.shtml

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http://www.physics-edu.org/tech/ocean_wave_power_pla

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http://www.eia.doe.gov/emeu/aer/diagram1.jpg

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http://www.treehugger.com/files/2009/06/5-boundary-pushing-ways-generate-renewable-energy.php

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people.bath.ac.uk/.../Website_files/page0006.htm

mrpunkykitten.blogspot.com/
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Ocean Power Fights Current Thinking

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http://www.bolsondigital.com/english/2005/03/28/ocean-power-fights-current-thinking

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http://www.eia.doe.gov/kids/energyfacts/sources/renewable/ocean.html

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http://www.physics-/edu.org/tech/ocean_wave_power_plants.htm

Wave Energy Power Plants

Edinburgh - Port of Leith
The Ocean Power Delivery Pelamis machine. 31/05/2006

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H2OMF (((- NEW UNDER CONSTRUCTION ))) Main site click on #1 or #8 http://mfh2o.blogspot.com

1a..OCEAN SURFACE WAVE & below

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