The movement of air under the difference in atmospheric pressure creating the wind; so this is also a source of endless energy than human life. Wind energy has been used to pump water and run thousands of yacht features before. However recently the wind power is being used to push the rotor running generators serve human life.With the advantages of wind energy sources is never totally free and shallow, the wind as well as cameras, the camera wind was born. This category also does not generate waste and pollution are suitable for remote areas of the town, where national grid is hard to reach. However, like solar energy, this energy type also requires fairly high capital and subordinate in nature. With the progress of science and technology, the type of energy has appeared to many in the industrial countries is high and promises a promising business potential. The current application of the aggregate is applied to this source of energy in order to limit the possibility of instability of it to put into the main power grid as well as wind energy reserves under a different format in progress elsewhere, including Vietnam.2.2.3 tidal power (Tidal Power)Tidal energy, tidal stream applications to the propeller running generators. This is also a form of energy is inexhaustible fuel source and free. This model type does not produce harmful environment waste and does not require the high maintenance. Different models of solar and wind energy, tidal energy is quite stable because of the tides can be predicted exactly.The downside of this energy is the type that requires a large amount of investment for the construction and equipment and at the same time altering the natural conditions of a very broad area. In addition this model only works for short periods during the day when there are tidal and also very few places in the world to have a favorable terrain to build this source of energy in an effective manner. 2.2.4 Energy Water Power (Hydro-Power)Many people still believe this is a classic form of energy as it appeared together with humans for thousands of years and are widely used for the power supply consumption next to the type of fuel energy transformed completely. The water stored in the Lake by the dam. When the water is free fall from a height will create a certain energy block statue with the mass of the water and the rate of the Earth's gravity and with a height of. Energy that will block the propeller of the generator (potential energy of the water at this converted into kinetic energy) and generate electricity for use.Investment for this type of energy is also quite expensive but its fuel use is almost endless and requires little maintenance. This category also does not generate waste, ruin the environment. Electric power is generated from this model have high stability and has the ability to increase and decrease the amount of power in an instant should be widely applied in the world as well as constitute a most important part in Vietnam grid in the present time.However as noted above, the downside of this energy model type is rather high initial investment. At the same time the construction of dams change Temple of ecological environment of upstream and downstream. The type of this model often carry a number of side effects such as regulate water and flood prevention but themselves it also potentially negatively influence the regulating water and cause flooding not necessary if not logical design. In addition, the shortage of electric power worldwide has promoted the construction of hydro power plants over the years makes the water source can use start to become scarce. If there is no appropriate measures to improve the advantages of this model will become the agent for the bad influence to the society.2.2.5 energy from ocean waves (Wave-Power)
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