Roof Mounted Solar Panels

- May 24, 2018 -

There are three main types of Roofs: color steel tile roofs, brick and tile roofs, and flat top concrete roofs. The three types of roof structures are very different. Even if the area is the same, the capacity of the installed photovoltaic power system is different. How can we estimate the capacity of the home roof for the user? Today we will come together and say something.

First look at the roof of the brick and tile structure, which is the most common type of roofs built in rural areas, and it is the most common kind of roof. In the construction of photovoltaic system, it is first to take into account the occlusion problem. Usually, there are no sheltering areas from 8 a.m. to 4-5 p.m., the components are laid on the south side, and the 1 kW of the roof area is 10 flat. Square meter or so. In rural residents, the single side of the roof is usually around 50 flat, that is to say, the photovoltaic system can be installed by 5kW. According to the daily average of 4 small hours, it can generate about 20 degrees a day, and a year can generate 7300 degrees.


Look at the roof of color steel tile structure. This type of rooftop villagers do not live very much, because the color steel tile roofs are cold and hot in summer. And plant, livestock plant and other use more, in the installation of photovoltaic system is also South installation, the proportion of component laying and brick roofs similar to 1 kilowatts of 10 square meters of area.


Three, the flat soil roof, which is commonly known as flat house in rural areas, is flat on the top, and has more requirements for the design of photovoltaic power generation system. First, it is necessary to take into account the radiation amount of the ground light, let the components receive as much sunlight as possible, and then take into account the complex factors such as the occlusion of the front and back components and the height of the parapet. In order to optimize the radiation dose, the PV array inclination should normally be at 0 degree to the latitudes. With the inclination of the array, the area of the array is large. In addition, there should be enough space between the components to avoid shadow sheltering and parapet shielding. In this way, the roof area installed on a flat roof will be larger than the tile roof. Usually, the 1 kW system takes up 15~20 square meters of roof area, and takes 5 kW of household installation as an example. It needs to occupy 75~100 square meters.


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