Water Energy

Water covers approximately three-fourths of the earth. It is a renewable energy source and hydroelectric power plants are situated in many countries. The water once used for generating electrical energy can be reused - hence, it is termed as a renewable source. According to certain experts, the water levels of the earth will never diminish. The ice present in the Polar Regions is already melting and hence, there will be no dearth for water in the coming years. If we devise the appropriate technologies, we can harness water for generating power for the many years to come.

water energy Ever since the ancient times, we can see elaborate usage of water energy. One of the first inventions that incorporated extensive use of water energy was waterwheels. Water when moved across wheels (while rotating them in the process) was used in mills and for driving heavy machineries in the industries. Then people realized the vantages of generating electricity with the help of water energy. Water stored at a reservoir was made to flow through narrow pipes (to increase the pressure) and was ultimately fed to turbines. When the turbine blades rotated, electricity was generated.

It is not necessary to employ a reservoir to generate electricity using water energy. Ingenious men devised mechanisms that could make use of the energy present in natural sources of water such as rivers and oceans. These creations are now termed as dam-less hydroelectric power plants. With the development of suitable technologies, men realized the benefits of utilizing the potential energy present in large bodies of water. They began to create artificial vortices in oceans and seas with the intention of generating power. Have you ever noticed the waves? They never seem to stop - how about utilizing these to give rise to electricity? Do not fret because it is already being done in many nations.

The potential energy that is existent in the stored water is converted into kinetic energy when the water begins to flow. This kinetic water energy is transformed into mechanical energy. A subsequent conversion process takes place once again; this time electrical energy is the result. There is a popular notion that hydroelectric power plants can bring about nominal amounts of electrical energy only. However, by applying mathematical calculations, experts are capable of powering entire nations using the same technology. Most of the third world countries still utilize water energy.

By now, you might have understood the valid reasoning behind the statement "water energy is a renewable source of energy". Some of the new generation scientists have begun to concentrate on utilizing the thermal power present in the oceans. The research is still at its infancy and there are a large number of limitations - the primary one being the inability to set up a fully-fledged power station in the middle of the ocean. Newer paradigms are always on the rise and in the coming years, we should see a surge in the appropriate usage of water energy. Solar energy and water energy are combined in certain installations to produce steam and thus run the turbines to generate electricity.