Methods for Producing Electrical Energy from Sea Water Waves

New and renewable sources of energy that are considered include solar energy, wind energy, wave energy, Bioenergy, sea thermal gradient energy, geothermal energy, hydropower, nuclear power and so on. Broad ranges of wave energy are vast in the seas and oceans, so there are usually large amounts of wave energy but the technologies must be developed to exploit them economically. Energy generation plans from sea waves have two types include fixed and floating plans. Fixed plans are installed at the bottom of sea or shore. Three major types of fixed plans include oscillating water column, convergent channel and pendulum design. Floating plans move up and down by movement of the waves and electricity is produced from this motion. Some of these floating plans are Swedish pump pool, the MacKib wave pump, floating wave power duct, Danish wave power submersible pump and Salter spindle. Further researches are tracked globally to explore new methods for using from wave energy in a cost effective method, and broaden because of energy crisis intensifying. Oscillating water column and waves plane are two types of new projects to use wave's energy. In this research we have tried to discuss about energy of waves created in the sea levels and the ways to exploit them. Also, characteristics of wave energy exploitation plans are expressed, advantages and disadvantages of wave energy are described and the challenges to development of wave energy plans are discussed.