The roof of the rural mainly has three categories: caigang watts roof, brick and tile roof structure, flat roof. These three kinds of roof structure is quite different, even the same area, the installation of photovoltaic power generation system capacity is also not the same, with the
the roof of the rural areas there are three main types: caigang watts roof, brick and tile roof and flat concrete. The three kinds of roof structures are quite different. Even in the same area, photovoltaic power generation system of installed capacity is also different. The user how to estimate the capacity of the roof? Let's take a look at the brick structure of the roof. The roof is the most common in rural areas, is also one of the most common. When building photovoltaic system, we should first consider the shelter. Usually, we will in the next morning 8:00 to afternoon 4:00 to choose no refuge areas. Components placed in the side of the south. Theoretically, 1 kw occupies the roof of about 10 square meters area. In rural areas, the villagers usually have a 50 square metre roof, that is to say, they can be installed a 5 kw pv system, according to an average of four hours of sunlight a day, every day can generate electricity 20 degrees or so, each year about 7300 degrees can generate electricity. From the point of the roof of caigang watts structure, this type of roof villagers don't care for it very much, because in LengXia, caigang watts roof is very hot in winter, the villagers didn't like. However, plant and animal husbandry and plant is used more frequently. Installing a photovoltaic system, they are also facing south of installation. Component laying and brick roof are similar, the proportion of 1 kw covers an area of about 10 square meters. Flat concrete roof, commonly known as a bungalow in rural areas, there is a ceiling. Installing a photovoltaic power generation systems, have more request for the design. First of all, it should consider the local light radiation, so that components can receive sunlight as much as possible. Second, complicated factors should be considered, such as component before and after blocking and barrier height. In order to get the best radiation, pv array relative to the local latitude Angle should be 0. As the array tilt Angle, occupy the area of the nature. In addition, consideration should be given should be enough space between components, to avoid the shadow mask and parapet shielding. Thus, can calculate the pv system flat roof installation occupied area will be greater than the roof of the tile roof. In general, occupy the 15-1 kw system The roof of 20 square meters area. For example, a 5 kw home installation project need 75 - 100 square meters. Know the and the type of roof, can adjust measures according to local conditions, find out the trick. If a person wants to install a photovoltaic system, he can estimate the capacity of the roof. Of course, this is only an estimate, the need for a professional design company to do these things. After all, a person is professional.