Ocean+Wave+Energy+Technologies

A variety of technologies have been proposed to capture the energy from waves. Some of the more promising designs are undergoing demonstration testing at commercial scales. Wave technologies have been designed to be installed in **nearshore**, **offshore**, and **far offshore** locations. Offshore systems are situated in deep water**s**, typically of more than 40 meters.While all wave energy technologies are intended to be installed at or near the water's surface, they differ in their orientation to the waves with which they are interacting and in the manner in which they convert the energy of the waves into other energy forms, usually electricity. The following wave technologies have been the target of recent development. A **point absorber** is a floating structure with components that move relative to each other due to wave action (e.g., a floating buoy inside a fixed cylinder). The relative motion is used to drive electromechanical or hydraulic energy converters. **Attenuators** are long multisegment floating structures oriented parallel to the direction of the waves. The differing heights of waves along the length of the device causes flexing where the segments connect, and this flexing is connected to hydraulic pumps or other converters.
 * Terminator devices** extend perpendicular to the direction of wave travel and capture or reflect the power of the wave. These devices are typically onshore or nearshore; however, floating versions have been designed for offshore applications. The **oscillating water column** is a form of terminator in which water enters through a subsurface opening into a chamber with air trapped above it. The wave action causes the captured water column to move up and down like a piston to force the air though an opening connected to a turbine.

[|en.wikipedia.org/wiki/Wave_power] [|peswiki.com/index.php/Directory:Ocean_Wave_Energy] [|www.energysavers.gov/renewable_energy/ocean/.../mytopic=50009] [|www.alternative-energy-news.info/technology/hydro/wave-power/]