Water Energy

Water energy is one of the most overlooked and underrated sources that we have on this earth. Water energy is generally one of the several forms of renewable energy that is available for creating electricity.
Some of the forms of water energy include ocean, wave, tidal, hydroelectric and even geothermal. The most talked about and developed forms of water energy are the latter: hydroelectric and geothermal.
But, in addition to these forms of water energy, a more exciting area of research and development is being conducted on ocean, wave and tidal energy. Some use these terms interchangeably while other see a difference among how the ocean supplies its power to be converted to electricity.
Tidal energy usually involves a basin next to shore where turbines are placed and generate electricity in accordance to the movement of the high and low tides of each day. Turbines that capitalize on wave energy may be place further out to sea in places where the ocean currents turn the turbine wheels to create electricity.
Ocean energy may be seen as either of these two types of energy or it can be ocean thermal energy that one is talking about. In this type of water energy, the sunrays upon the surface of the ocean act as a huge solar collector.
Three types of systems use ocean thermal energy in order to create electricity including closed-cycle, open-cycle, and hybrid. Each of these systems use the water's heat to turn a turbine, which creates electrical current.
This site will explore each of these types of water energy, so that you may not only see what has been completed in this type of renewable resource, but also how much room for growth there is. On a daily basis, we tap only a small fraction of the earth's energy at any one moment, and by conducting more research and development upon water energy, one day we'll be able to put the power of water to work for us and help clean up the environment at the same time. Water you waiting for? Let's get started!
All puns aside, water is renewable and sustainable and we've only tapped into a tiny drop of its power so far. So, let's get moving now.

source: http://www.water-energy.net/