Photovoltaic inverter type according to installation environment can be roughly divided into indoor and outdoor. Indoor photovoltaic inverter type of low (protection grade In the majority with IP20) , often using forced air cooling, higher requirements on the installation site ( Need to install the site
according to the installation environment, photovoltaic inverter can be roughly divided into indoor and outdoor. The low level of indoor photovoltaic inverter protection ( IP20 majority) , usually adopts the forced air cooling. It need higher installation site ( Installation site requires good ventilation system) , and need to transform the existing buildings to satisfy the installation environment requirements, the cost is higher. Natural cooling of outdoor photovoltaic inverter protection grade is high ( Usually require IP65) , less environmental transformation, the cost is low. At the same time, due to the inverter is installed in the outdoor, with the noise caused by inverter operation will greatly reduce the influence of the user, but need good equipment protection. On the other hand, the choice of the inverter capacity can according to the installation conditions were optimized. Install location is not clear if the early, without fully considering the installation location should be as far as possible choose low power photovoltaic inverter to achieve multichannel independent power tracking, when it is necessary to choose the micro inverter to achieve maximum power tracking of single block photovoltaic panels, to ensure that the late of space or space caused by irregular series power imbalance. Which position is suitable for installation of distributed photovoltaic system: 1) Online shopping in the field of industrial workshop: especially large electricity consumption, electricity of your factory, the roof of the workshop area is often larger, roof flat open, and is suitable for installation of pv array. Due to large electricity load, distributed photovoltaic (pv) grid system can absorb part of the electricity used to shopping online, which for the user to save electricity. 2) Commercial buildings: effect of similar industrial park. , commercial buildings are mostly cement roof, it is better for installation of pv array. However, they usually need to architectural aesthetics. According to commercial buildings, office buildings, hotels, conference center, resorts and other service industry, the characteristics of user load characteristics generally higher during the day, night is low, to better match the photovoltaic properties. 3) Agricultural facilities: the roof of the rural areas have a large number of available, including their own houses, vegetable greenhouses, fish ponds, etc. Rural areas are often located in the central part of the public power grid, power quality is poor. Construction of distributed photovoltaic system in rural areas can improve power security and power quality. 4) Municipal public buildings, such as: as the unified management standards, user load and business behavior is relatively reliable, installation high enthusiasm, municipal and other public buildings are suitable for concentrated construction of distributed photovoltaic (pv). 5) Remote pastoral areas and islands, because far away from the grid, in China's Tibet, qinghai, xinjiang, Inner Mongolia, gansu and sichuan provinces and coastal islands in the remote pastoral areas, millions of people without electricity. And other complementary energy off-grid pv systems or micro grid power generation system is very suitable for application in these fields.