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      As the cost of photovoltaic power generation decreases gradually, the return on investment of distributed photovoltaic power generation has a comparative advantage over centralized ground power station and is more acceptable to ordinary households.

      Idle factories, commercial buildings and rural roofs are gradually favored by investors of photovoltaic power stations. Solar water heaters are used in every household in rural areas where the economy is growing fast. In jiangsu and Zhejiang provinces, for example, you can see a blue ocean of photovoltaic roofs standing side by side as you look out over high-speed trains.

      Speaking of rooftop photovoltaic power station, the roof that can install distributed photovoltaic power generation system is no more than bungalows, tile-roofed houses, color steel tile-roofed houses. What problems should we pay attention to when installing distributed photovoltaic systems on three different roofs in rural areas? Today, I will discuss with you.

      Thing in common:

      Usable area, roof orientation, building structure, ground foundation and meteorological conditions, load-bearing capacity, roof waterproof, aging degree, building shelter, etc. (property ownership is not considered here).

      Difference:

      Bungalow roof. The installation of distributed photovoltaic power stations in flat buildings mainly considers the load-bearing capacity and waterproof performance of the roof, while other factors are much simpler than the former two.

      Tiled roof. To install photovoltaic power station on roof of tiled house, it is necessary to consider roof orientation, azimuth, roof inclination Angle, type and size of tile, waterproof, etc. In addition, it is also necessary to consider roof covering area and roof structure of uncovered part of tile.

      Color steel roof. When installing photovoltaic power station on the roof of color steel, the service life of color steel needs to be considered (the service life of color steel is 15 years, and the service life of photovoltaic system is 25 years). Once replaced, the cost needs to be considered. In addition, it is necessary to consider the color steel roof structure (Angle gallop type, vertical lock side type, ladder type structure), color steel roof fixture form, waterproof work.