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electrical:solar:shading [2020/02/08 11:24] frater_secessus |
electrical:solar:shading [2020/03/17 16:15] frater_secessus [Partial shading] |
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====== Partial shading ====== | ====== Partial shading ====== | ||
- | Partial shading can have surprisingly dramatic effects on panel output. The weirdest part is that //partial// shading can have more devastating effects on output than //full shading// like heavy overcast or evenly shaded forest canopies. | + | Partial shading can have surprisingly dramatic effects on [[electrical: |
+ | ===== reminder: | ||
+ | **Before we begin:** solar panels are " | ||
+ | ces"; | ||
+ | Partial shading in this context means: | ||
+ | * light is falling on the panel | ||
+ | * but not evenly on the panel -- it is different on some cells | ||
- | + | To prevent power from rushing | |
- | It works this way: | + | |
- | + | ||
- | - partial shade causes //voltage differences// | + | |
- | - electricity flows from higher-voltage areas to lower-voltage ones, so voltage differences would cause power to rush into the lower-voltage (shaded) cells | + | |
- | - overheating the shaded cell and possibly damaging it | + | |
- | + | ||
- | To prevent damage panel manufacturer' | + | |