Principles of household solar power systems.
Photovoltaic power generation is the use of semi-conductor interfaces the photovoltaic effect of a technology to convert solar energy directly into electricity. The technology solar cells are the key components. Solar cell encapsulation protection is after a series covering a large area of solar cell modules, coupled with a power controller and other components on forms of PV devices. Advantages of PV is less subject to geographical distribution, because the sun shines; PV system is safe and reliable, low noise, pollution, without consuming fuel and building transmission lines to local power generation and distribution and the advantages of short construction periods.
Photovoltaic effect according to Teruo volts, using solar cells convert sunlight directly into electricity. Whether it is used alone or grid-connected electricity generation, power schematic diagram
Photovoltaic system consists of solar panels (components), controllers and inverters has three major components, which consisting largely of electronic components, not involving mechanical components, therefore, photovoltaic power generation equipment is extremely refined, reliable long life, easy installation and maintenance. In theory, the photovoltaic technology can be used for any occasion that requires power, from the spacecraft, down to the household power supply to large megawatt power station, small toys, photovoltaic power everywhere. Photovoltaic solar cells are the most basic components (film), monocrystalline silicon, polycrystalline silicon, amorphous silicon and thin-film batteries. Monocrystalline and polycrystalline cells the largest amount, non-crystalline cells for small systems and computer power supplies.
Chinese-made crystalline silicon efficiency at around 10zhi13%, about 18zhi23% efficiency of similar foreign products. Consists of one or more solar cells solar panels known as PV modules. PV power products main for three big aspects: a is for no electric occasions provides power, main for General no electric area residents life production provides power, also has microwave relay power, and communications power,, addition, also including some mobile power and alternate power; II is solar daily electronic products, as various solar charger, and solar Street and solar lawn lamp,; three is grid power, this in developed has big area promotion implementation. Grid-connected electricity generation in China has not yet started, however, 2008 Beijing Olympics electricity is provided by solar power and wind power.