What power of solar energy solar energy street light board?

Solar power generation means there are two ways, one is the solar-thermal electric conversion mode, the other is a photoelectric conversion way directly. ( 1) Solar-thermal power conversion by using solar radiation produced by thermal, usually by solar



there are two ways of solar power generation way, is a kind of light & ndash; Hot & ndash; Electricity conversion mode, the other is a light & ndash; Electricity conversion way directly.

( 1) Light & ndash; Hot & ndash; Electricity conversion mode through the use of solar radiation produced by thermal, usually by the solar collector 【 Solar collector is a device converts the sun's radiant energy into heat energy. 】 Will be absorbed by the solar street lamps factory steam heat energy into a working medium, to drive a turbine to generate electricity. The previous process is light & ndash; Thermal conversion process; After a process is the heat & ndash; Electricity conversion process, it is the same as ordinary thermal power. Solar thermal power generation of defect is low efficiency and high cost, estimated that its investment must be at least 5 ~ 10 times expensive than normal plants.

( 2) Light & ndash; Electricity direct conversion way the way is to use the photoelectric effect, convert solar radiation directly into electricity, light & ndash; The basic unit of electricity conversion is a solar cell. Solar panel battery is a kind of effect by Yu Guangsheng volts and convert sunlight directly into electrical energy device, is a semiconductor photodiode, when the sun light to the photodiode, photodiode can turn the sun's light energy into electrical energy, an electrical current. When many cells in series or parallel up can become a larger output power of the solar cell phalanx. The solar cell is a promising new type of power supply, and permanent, clean and flexibility to three big advantage. Solar long battery life, as long as there is the sun, the solar cell can be an investment and long-term use; Compared with thermal power, nuclear power, solar cells will not cause environmental pollution.