In theory, the principle of photovoltaic power generation and is the purpose of the manufactured goods

Photovoltaic power generation is based on the principle of the optical born v effect, using solar cells convert sunlight directly into electricity. Either independent or connected to the grid, photovoltaic power generation system is mainly composed of solar panels, Components) , controller and inverter three major

photovoltaic power generation is based on the principle of photovoltaic effect, using solar cells convert solar energy into electrical energy directly. Either independent or connected to the electricity grid, photovoltaic power generation system is mainly composed of solar panels, Components) , controller and inverter. They are mainly composed of electronic components, does not involve the use of mechanical components. As a result, photovoltaic power generation equipment is extremely delicate, reliable, stable, long life, easy to install and maintain. Theoretically, photovoltaic power generation technology can be used for any need power, from the spacecraft to the home power, from megawatt power station to toys, photovoltaic power generation is everywhere. Photovoltaic solar cells are the most fundamental component ( ) , including monocrystalline silicon, polycrystalline silicon and amorphous silicon thin film batteries. At present, the most used is a single crystal and polycrystalline cells. Amorphous batteries used in some small system and computer auxiliary power. The efficiency of domestic crystal silicon is about 10 - 13%, and the efficiency of about 114% of similar products abroad. Consists of one or more of the solar battery of solar panels is called the photovoltaic modules. At present, the photovoltaic products mainly used in three areas: first, it provide power for the electricity situation, mainly for the majority of the people's life and production provide electricity power area, and microwave relay power supply, communication power supply, etc. In addition, it also includes some mobile power supply and standby power supply. Two solar daily electronic products, such as all kinds of solar charger, solar street lights and solar lawn, etc. Third, the grid generation in developed countries has been widely promotion and implementation. China's grid generation has not yet started, but part of the 2008 Olympic Games in Beijing electric power will be provided by the solar and wind power. Photovoltaic principle basic principle is 'photovoltaic effect' when photons illuminate metal, its energy can be absorbed by the electrons in a metal completely. Electronic absorption energy is enough big, can overcome the internal force of the metal work, and escape from the metal surface become photoelectron. 'Photovoltaic effect', abbreviated as 'photovoltaic effect'. Refers to the lighting in the nonuniform semiconductor or between different parts of the semiconductor and metal combination causes the phenomenon of electric potential difference. First of all, this is a photon ( Light waves) Into electronic, the process of convert light energy into electrical energy. Second, it is a process of voltage form. A voltage as built a dam. If the two are linked together, can form a current loop. The basic principle of photovoltaic power generation is the 'photovoltaic effect'. Solar energy expert's task is to complete work to make the voltage. Because to produce voltage, so complete photoelectric conversion of solar cells is the key to solar power. Solar cells are often referred to as photovoltaic cells. At present, the main solar cells is silicon solar cells. Silicon purity is used for '119' 'purified silicon,' than the semiconductor chips or silicon chips 'low only 29'. Due to the composition of purified silicon crystal is different, they are divided into polycrystalline and monocrystalline silicon. The monocrystalline silicon solar cells photoelectric conversion rate is about 15%, the highest can amount to 24%, general service life can amount to 15 years, up to 25 years and above comprehensive performance and price ratio of the polycrystalline silicon solar cell conversion rate is only 12% or so.