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THE SIMULTANEOUS HARNESSING OF THE THREE GREATEST SOURCES OF MARINE ENERGY

10/09/2012| Abel Cucurella

Following extensive ocean trials of the first tri-volumetric APC -PISYS system, which PIPO Systems patented in 2002, we have developed the world's first system capable of simultaneously capturing the three most important natural forces present in the ocean.

The integration of these forces by means of a single, submerged machine, which is a break-through in renewable energy, combines the tri-volumetric wave energy of the ocean currents with large offshore wind energy generators supported on floating platforms designed by the same Spanish company that invented and developed multiple-source marine generators.

In the context of offshore wind power, Professor Yuji Ohya of Kyushu University has developed the "Wind Lens", a new concept which he presented at the Renewable Energy International Expo held in Yokohama, Japan. Basically, this is a new type of wind generator comprised of a turbine with blades more than 100 meters in size housed in a ring-shaped structure, which acts as a lens to intensify the wind driving the generator.

Obviously a nuclear power plant can generate a much greater amount of energy than the most powerful combined wave and offshore wind generator system is currently capable of producing. Hence, development continues so that these renewable sources can increase their energy output, from which a multitude of possible applications could emerge, overtaking the expected sextuple systems.

Presently, there are advanced projects in wave energy attracting the interest of major electric power companies, whose investments in land and sea based wind farms are approaching 2% of the world’s total renewable energy generation at almost 160 gigawatts generated.

The construction and introduction into service of these sextuple generators, which are able of capturing and harnessing the greatest amount renewable energy simultaneously, can only be conceived of due to the immensity of the ocean, the versatility of new materials and multidisciplinary engineering.

Natural marine forces: Wind (offshore wind generation); Ocean currents (generation by blades and turbines); Waves or wave energy (vessels: submerged and/or connected) (changes in water pressure and/or movement in opposite directions); High pressure pumping (desalination without energy consumption or CO2 emissions.); Circular and rectilinear generators.

While these types of multiple converters, if taken individually, cannot compete (not even slightly) with the power generated by a nuclear plant, a marine "farm" endowed with all of these types could effectively be a safer alternative to nuclear reactors. Therefore it can be expected these multiple machines could be simultaneously installed on semi-submerged platforms, eliminating in one stroke the criticism that such energy farms are noisy or detract from the landscape.