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electrical:solar:shading [2020/01/07 23:33] frater_secessus [panel configuration for partial shade] |
electrical:solar:shading [2020/03/17 15:49] frater_secessus [Partial shading] |
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+ | Words of Wisdom: | ||
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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: |
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To prevent damage panel manufacturer' | To prevent damage panel manufacturer' | ||
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===== panel configuration for partial shade ===== | ===== panel configuration for partial shade ===== | ||
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- | * With PWM controllers | + | * dedicated controllers for each panel is optimal |
- | * With MPPT controllers and **low-ish voltage** serial panel configurations (where the total Vmp is <=2x battery bank voltage) it's close but **parallel will probably still yield more**. | + | * [[electrical: |
- | * With MPPT controllers and **higher voltage** serial configs (say Vmp is >=3x bank voltage) we see **an increasing | + | * With **PWM controllers, |
+ | * With **MPPT controllers** and **low-ish voltage** serial panel configurations (where the total Vmp is <=2x battery bank voltage) it's close but **parallel will probably still yield more**. | ||
+ | * With **MPPT controllers** and **higher voltage** serial configs (say Vmp is >=3x bank voltage) we see **an increasing advantage | ||
+ | ===== examples ===== | ||
+ | * [[https:// | ||
+ | * [[https:// |