![]() Weather & ClimateĮxtreme weather conditions can impact the performance of solar panels considerably. Professional solar installers should guide you on the best placement of solar panels to avoid blockage by shadows. You should cut any branches or remove any objects encroaching your roof. If the shadow blocks sunlight throughout the year, this can affect your solar panels’ return on investment. ShadingĪre you having objects or trees casting shadows on your solar panels? Shading can reduce the efficiency of solar panels by more than half. Determinants of the Efficiency of Your Solar Panel System 1. Let’s look at how each of these factors affects solar panel efficiency. However, this might not be the case because of low maintenance, shading, roof orientation, or roofing materials. Solar panels should maintain a capacity of around 25% during cloudy days. Apart from that, some solar types like solar shingles have low efficiency but highly aesthetic.Įfficiency determines the size and number of solar panels in a system. There is no need to pay premium prices for high-performance solar panels. Unless you have limited roof space, the solar panel’s efficiency should not be a big issue. However, some brands have efficiencies of more than 40%, but they are not economically viable. The most common types of solar panels have an efficiency of around 17% to 23%. Although the primary determinant of a solar panel system performance is its type, there are other determinants. Solar panel efficiency refers to the output of a solar panel relative to the space occupied. ![]()
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