CETO is a wave energy technology that harnesses the power of the ocean waves to generate electricity or produce desalinated water. CETO was first conceived by Carnegie Corporation Chairman Alan Burns in
Perth, Western AustraliaPerth is the capital and largest city of the Australian state of Western Australia. With a population of 1,650,000 , Perth ranks fourth amongst the nation's cities, with a growth rate consistently above the national average....
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The Australian ASX-listed clean tech developer Carnegie Corporation (ASX: CNM) is currently developing the
zero emissionZero emission refers to an engine, motor, or other energy source, that emits no waste products that pollutes the environment or disrupts the climate.-Zero emission engines:...
CETO Wave Energy technology, and will own and operate all commercial CETO wave farms in the
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CETO is a wave energy technology that harnesses the power of the ocean waves to generate electricity or produce desalinated water. CETO was first conceived by Carnegie Corporation Chairman Alan Burns in
Perth, Western AustraliaPerth is the capital and largest city of the Australian state of Western Australia. With a population of 1,650,000 , Perth ranks fourth amongst the nation's cities, with a growth rate consistently above the national average....
.
The Australian ASX-listed clean tech developer Carnegie Corporation (ASX: CNM) is currently developing the
zero emissionZero emission refers to an engine, motor, or other energy source, that emits no waste products that pollutes the environment or disrupts the climate.-Zero emission engines:...
CETO Wave Energy technology, and will own and operate all commercial CETO wave farms in the
Southern HemisphereThe Southern Hemisphere is the half of a planet that is south of the equator—the word hemisphere literally means 'half ball'...
. The
Northern HemisphereThe Northern Hemisphere is the half of a planet that is north of the equator—the word hemisphere literally means 'half sphere'. It is also that half of the celestial sphere north of the celestial equator...
wave farms will be joint ventures between AIM-listed Renewable Energy Holdings and
EDF Energies NouvellesEDF Energies Nouvelles is a French renewable energy corporation, half owned by French electic utility Electricite de France. It was formed in 2004 from its predecessor SIIF Energies and was floated on the Paris stock exchange in 2006....
SA (EDF EN). The technology development will be complete in 2009, and will be the first commercial CETO plant that has the potential to be the world’s first commercial, baseload wave power station.
Named after a Greek ocean goddess, the CETO system distinguishes itself from other traditional wave energy devices by being a fully submerged, pumping technology with the power generated onshore by a standard
hydro-electric turbineHydroelectricity is electricity generated by hydropower, i.e., the production of power through use of the gravitational force of falling or flowing water. It is the most widely used form of renewable energy...
system.
Submerged buoys are moved up and down by the ocean swell, driving pumps which pressurize seawater that is delivered ashore by a pipeline. When the buoys are onshore, the high-pressure seawater is used to drive hydro turbines, generating zero-emission electricity.
The high-pressure seawater is also used to supply a
reverse osmosisReverse osmosis is similar to the membrane filtration treatment process. However there are key differences between reverse osmosis and filtration...
desalination plant, creating zero-emission freshwater. Currently, seawater desalination plants are large emitters of greenhouse gases due to the amount of energy required to drive grid-connected pumps that deliver the high pressure seawater to reverse osmosis membranes which remove the salt from the seawater.
Other wave energy & CETO characteristics
- Wave energy is a renewable, zero emission
Zero emission refers to an engine, motor, or other energy source, that emits no waste products that pollutes the environment or disrupts the climate.-Zero emission engines:...
source of power.
- 60% of the world lives within 60 kilometers of a coast, minimising transmission issues.
- Since water is about 800 times denser than air, the energy density of waves exceeds wind many times over, dramatically increasing the amount of energy available for harvesting.
- Waves are predictable in advance, making it easy to match supply and demand.
- CETO sits underwater, moored to the sea floor, meaning there is no visual impact.
- CETO units operate in deep water, away from breaking waves. The waves regenerate once they pass the CETO units, meaning there is no impact on popular surfing sites.
- CETO units are designed to operate in harmony with the waves, rather than attempting to resist them. This means there is no need for massive steel and concrete structures to be built.
- CETO is the only wave energy technology that produces fresh water directly from seawater by magnifying the pressure variations in ocean waves.
- Any combination of power and water can be achieved from 100% power to 100% water.
- CETO contains no oils, lubricants or offshore electrical components. It is built from components with a known sub-sea life of over 30 years.
- CETO units act like artificial reefs, because of the way they attract marine life.
See also
- Wave energy
- Water desalination
- Wave farm
A wave farm or wave power farm is a collection of machines in the same location and used for the generation of wave power electricity.-Portugal:...
- Baseload
- Reverse Osmosis
Reverse osmosis is similar to the membrane filtration treatment process. However there are key differences between reverse osmosis and filtration...
- World energy resources and consumption
In 2005, total worldwide energy consumption was 500 exajoules with 80 to 90 percent derived from the combustion of fossil fuels. This is equivalent to an average energy consumption rate of 16 terawatts...
External links