Photovoltaic solar panels bracket are generally more greenhouse heavy, need better support columns and beams. Ordinary greenhouse roof angle to reach 35 °, with increasing latitude increases. To design sunny common greenhouse roofing, roof sunny roof angle should be around 35 °, around the roof can be asymmetry, in principle, the need for a top is back, after this year can not block a sunny roof sunlight .
However, photovoltaic solar greenhouses have monocrystalline silicon, polycrystalline silicon, amorphous silicon, etc. a variety of different materials, at the same time, there are solar panels and thin-film batteries of the points, as well as the difference between opaque and translucent, it can be removed such big worry. PV battery life more than 20 years. Monocrystalline silicon cell power generation efficiency and the service life are better, but the cost is higher, so now for the development of photovoltaic solar greenhouse battery components, primarily polycrystalline silicon and amorphous silicon.
Now photovoltaic solar panels used in greenhouses, more than a single or double glass protection, the total thickness of 3.0 ~ 6.5 mm. In an interview panels sunlight generates tremendous heat, without hail risk areas or greenhouse grown mainly around the summer, the thickness of the front panel can be reduced, in order to facilitate the dissemination of these outward heat; while in the main greenhouse cultivation around the winter, it should increase the thickness of the front plate, reducing the thickness of the back, or even to replace the film back for more of these heat retained in the greenhouse, fully utilized.
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