For the use of solar energy, individual western developed countries have through the sunlight is converted to steam kinetic energy into electricity method again, set up some power stations. The power generation process through a variety of lens focus sunlight, first for boiler water or heat tube to add
in order to use the solar energy, some developed western countries to establish some power plants, steam heat and light can be converted to kinetic energy, and then converted to electricity. In the process of this kind of power, the sun's rays through a variety of mirror together, heating boilers or the water in the heat pipe ( Similar to the working process of the solar water heater) , make water is boiling water vapor, and then the kinetic energy of steam through the turbine is converted into electrical energy, through a series of power generation process. Although compared with directly converted into electrical energy efficiency, the efficiency of this method greatly improved, but there is still a huge waste. In the process of photovoltaic power generation, the water in the boiler is heated continuously, continuously produce water vapor. When steam through the turbine, usually by emissions into the air. It not only wastes the water itself, but more heat is steam to air, this also caused energy waste. If the hot water boiler into the water, precipitation of coarse salt will regularly, in the process of heating steam is collected after power condensation. It can not only power, also can make full use of various chemicals in freshwater and seawater. So, solar-thermal power stations and the effective combination of seawater desalination equipment can solve the problem of energy and water. Thermal desalination plant only need enough sunlight and water to provide electricity and water. Can be widely used in tropical and subtropical coastal areas, such as China's southeast coastal cities and remote islands, there lack of energy, the lack of fresh water. Thermal power plant construction and operation of desalination can effectively solve the problem of energy and water. Compared with the traditional thermal power plants, thermal power station has the advantage of desalination can make full use of the heat steam carried, improve the efficiency of power generation. In addition, it is a set of seawater desalination equipment, can undertake desalination in power at the same time. With the use of electricity or other energy carrier for desalination provides energy compared with conventional distillation desalination equipment, the use of solar energy hot water desalination plant has obvious advantages and environmental protection. With the change of world situation and the energy problem, oil-based obvious rise in the price of energy carrier, heat, water power station is becoming more and more obvious, and will continue to get promotion and raise.