Solar-thermal power generation refers to the use of large parabolic array or disc mirror to collect the sun's heat, provide steam through heat exchange device, combined with the traditional steam turbine generator technology, so as to achieve the purpose of power generation. Solar-thermal power generation, according to the thermal way divided into
the solar-thermal power generation refers to parabolic through large-scale array or disc mirror to collect solar heat energy, provide steam through heat exchange device, and combined with the traditional steam turbine technology to achieve the purpose of power generation. Solar-thermal power generation by regenerative way is divided into three kinds, namely groove, tower and dish. Photovoltaic and thermal power generation has different technical characteristics and application conditions. In the present conditions, although solar-thermal power generation is a rising star, but it has some photovoltaic no advantage. In terms of technical practicability, photovoltaic power generation technology is relatively mature, practical technology, but technology difficulty is relatively high. The core technology is still in the hands of a few developed countries such as the United States and Japan. Solar-thermal technology threshold is very low. Although there are still many problems in the heat and refrigeration storage, but these problems are not insurmountable, can participate in the international technical cooperation and implement the policy of encouraging high technology research and development to solve. In terms of environmental pollution, solar polysilicon batteries production unable to get rid of high pollution and high energy consumption in the short run. For example, China's production of polysilicon batteries need to be imported from abroad, 80% and 90% of the finished products are sold overseas. Although it can earn profits in some industries, but it's still under pressure to pollute the environment in a short time. Solar thermal power plants, by contrast, construction and maintenance of the environmental impact of small, less pollution. On the layout, photovoltaic dominance is very obvious, relatively flexible layout. With the development of the future smart grid, household photovoltaic power generation can be integrated into the grid. Compared with photovoltaic solar-thermal power generation scale effect is relatively obvious. Solar-thermal power stations construction scale is larger, the lower the unit cost of electricity. Solar-thermal power generation, therefore, is suitable for large power station construction, the land area and funds have higher requirements. In terms of cost, solar-thermal power to avoid the expensive silicon photoelectric conversion process, can greatly reduce the cost of solar power. In addition, this kind of way of solar energy utilization has incomparable advantage over other solar energy conversion method, namely solar heating water can be stored in a large container, the day after to collect heat and light can directly drive a turbine power generation, waste heat can be stored in a thermal storage system, so much light at night, by thermal storage can be sustained steady power generation, especially suitable for large-scale grid-connected power generation in the desert areas of strong light. From now on, solar-thermal power generation will break the photovoltaic occupy the entire situation in the field of solar power - — Scale cost advantages, do not use the silicon with low pollution and domestic enterprise core technology has been gradually grasp the situation, will be advantageous conditions for the development of thermal power generation around the world. If the solar-thermal power generation technology of large-scale commercial application is successful, will bring solar-thermal power generation technology to promote and popularize the significant breakthrough. Will also improve photovoltaic technology unique embarrassing situation in the field of solar power, enhance the overall competitiveness in the field of solar power.