Check out these "Ocean Power Systems" by "BioPower" (Wow!)

BioPower Systems is commercialising ocean power conversion technologies. Through application of biomimicry, we have adopted nature's mechanisms for survival and energy conversion in the marine environment and have applied these in the development of our proprietary wave and tidal power systems.

Our technologies inherit benefits developed during 3.8 Billion years of evolutionary optimization in nature’s ocean laboratory.The resulting systems move and sway in tune with the forces of the ocean, and naturally streamline when extreme conditions prevail. This leads to lightweight designs and associated low costs.

The inherently simple bioWAVE™ and bioSTREAM™ devices are designed to supply utility-scale grid-connected renewable energy using efficient modular systems. These systems will reside beneath the ocean surface, out of view, and in harmony with the living creatures that inspired their design.

The wave power system, bioWAVE™, is based on the swaying motion of sea plants in the presence of ocean waves.

The hydrodynamic interaction of the buoyant blades with the oscillating flow field is designed for maximum energy absorption. In extreme wave conditions the bioWAVE™ automatically ceases operating and assumes a safe position lying flat against the seabed. This eliminates exposure to extreme forces, allowing for lighter designs and substantial cost savings.

Systems are being developed for 250kW, 500kW, 1000kW capacities to match conditions in various locations.

http://www.biopowersystems.com/biowave-animation.php">View bioWAVE™ animation >

The tidal power conversion system, bioSTREAM™, is based on the highly efficient propulsion of Thunniform mode swimming species, such as shark, tuna, and mackerel.

The bioSTREAM™ mimics the shape and motion characteristics of these species but is a fixed device in a moving stream. In this configuration the propulsion mechanism is reversed and the energy in the passing flow is used to drive the device motion against the resisting torque of an electrical generator.

Due to the single point of rotation, this device can align with the flow in any direction, and can assume a streamlined configuration to avoid excess loading in extreme conditions. Systems are being developed for 250kW, 500kW, and 1000kW capacities to match conditions in various locations.

http://www.biopowersystems.com/biostream-animation.php">View bioSTREAM™ animation >

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Until the latest of our world conflicts, the United States had no armaments industry. American makers of plowshares could, with time and as required, make swords as well. But now we can no longer risk emergency improvisation of national defense; we have been compelled to create a permanent armaments industry of vast proportions. Added to this, three and a half million men and women are directly engaged in the defense establishment. We annually spend on military security more than the net income of all United States corporations.

This conjunction of an immense military establishment and a large arms industry is new in the American experience. The total influence -- economic, political, even spiritual -- is felt in every city, every State house, every office of the Federal government. We recognize the imperative need for this development. Yet we must not fail to comprehend its grave implications. Our toil, resources and livelihood are all involved; so is the very structure of our society.

In the councils of government, we must guard against the acquisition of unwarranted influence, whether sought or unsought, by the militaryindustrial complex. The potential for the disastrous rise of misplaced power exists and will persist.

We must never let the weight of this combination endanger our liberties or democratic processes. We should take nothing for granted. Only an alert and knowledgeable citizenry can compel the proper meshing of the huge industrial and military machinery of defense with our peaceful methods and goals, so that security and liberty may prosper together.

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