The four main factors influencing the photovoltaic power generation is what?

Solar radiation is solar modules convert solar energy into electrical energy device, light radiation intensity directly affects the electricity. Local solar radiation data can be obtained by NASA's meteorological data query website, also can use pv design soft

solar radiation of solar energy battery components is a device that converts solar energy into electric energy, its light intensity directly affect the generation of electricity. Local solar radiation data can be gained through NASA's meteorological data query website, or by photovoltaic design software such as pv systems and renewable energy for screen. Solar energy battery components slope Angle of the data from weather stations are level on the surface of the solar radiation, can convert it into a photovoltaic array tilted surface radiation, to calculate the capacity on pv systems. Good Angle associated with the latitude of the site of the project. Solar energy battery components the conversion efficiency of pv modules is the core of influence power factor. On February 5, 2015, the National Energy Administration of the distributed on the photovoltaic market into full play in promoting technological progress and industrial upgrading to solicit opinion letter 'in the role of, since 2015, state subsidies photovoltaic pv components used in the project and the grid inverter products should comply with the requirements of relevant indicators' specification for the pv manufacturing industry. The polycrystalline silicon battery conversion efficiency not less than 15. Conversion efficiency of 5%, the single crystal silicon battery pack is not lower than 16%. First-line brand polycrystalline silicon components at present, the market conversion efficiency generally over 16%, monocrystalline silicon conversion efficiency is usually over 17%. System losses and all products, photovoltaic power station will be 25 years of life cycle gradually reduce the efficiency of the component and the performance of the electrical components, power capacity will gradually decline. In addition to these natural aging factors, as well as components and the quality problem of the inverter, line layout, dust, series-parallel loss, cable loss etc. In the general financial model of photovoltaic power station, the system output fell about 5% in three years, fell to 80% in 20 years. ( 1) Any series comprehensive losses will loss caused by components of current differential current; And cib voltage loss caused by the voltage difference between the components; Comprehensive loss could reach more than 8%, China engineering construction standardization association standards is less than 10%. Therefore, in order to reduce the comprehensive loss, should be paid attention to: 1) Power plant before the installation, should strictly choose current components in series. 2) The attenuation characteristics of components shall be as consistent as possible. ( 2) Dust plug in all the influence factors of photovoltaic power station overall power generation capacity, the dust is a major killer. Dust on the influence of the photovoltaic power station mainly as follows: 1) To the module via block light to influence power; 2) Heat, which affects conversion efficiency; 3) Acid-base dust deposition on the surface of the module for a long time, the corrosion surface of plate, the plate surface is rough, is beneficial to the accumulation of dust, increase the diffuse reflection of sunshine. Therefore, need not on a regular basis to wipe and clean the parts. At present, the cleaning method of photovoltaic power station there are three main types: water, artificial clean and robot.