1. Factory roof
Generally, the roof area of the workshop is relatively large, and there is enough space to install photovoltaic array. In addition, the power station can help users save a lot of electricity since the factory is loaded with electricity.
2. Commercial building roof
Most commercial buildings have cement roofs, which facilitate the installation of photovoltaic arrays. According to the characteristics of the service industry such as commercial buildings, office buildings, hotels, conference centers and resorts, the electricity consumption is generally higher in the daytime and lower at night, which can better match the characteristics of photovoltaic power generation.More suitable for installation of solar PV Bracket system.
3. Idle roofs in the countryside
There are a large number of available roofs in rural areas, including self-owned residential roofs, vegetable greenhouses, fish ponds, etc. Rural areas are often at the end of the public grid, with poor power quality. The construction of solar PV Bracket system in rural areas can improve the power supply and power quality..
Conditions for rooftop photovoltaic power stations：
1. Independent roof or clear property right of the roof
2. The roof has enough light
Power stations are generally installed in the south-facing roof, so as to better ensure adequate daily light; In addition, trees, telephone poles, parapet and other external obstacles will also affect the sun's light, installation needs to consider these factors.
3. The roof has enough area
Roof area is a more intuitive factor, rough estimation, 3KW system installation area in 22~35 square meters or so, 4KW system in 30~50 square meters or so, 5KW system in 45~60 square meters or so.
4. The roof has enough load-bearing capacity
Roof load bearing is a problem that must be considered in the early stage of photovoltaic power station design.
At present, most of the distributed photovoltaic power generation projects in China are completed on the existing roof. Considering the uncertain factors such as the roof structure and the number of years, it is necessary to issue a review report on the carrying capacity of the roof as a prerequisite for project application, so as to ensure the safety of the construction in the early stage and the operation in the later stage.