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electrical:solar:shading

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electrical:solar:shading [2020/03/17 13:22]
frater_secessus [panel configuration for partial shade]
electrical:solar:shading [2020/03/17 13:25] (current)
frater_secessus [reminder: how panels work]
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-**Before we begin:** solar panels are "​current ​sour¬†+**Before we begin:** solar panels are "​current ​sources"; ​ their voltage pops up into the normal range in any kind of meaningful light(>= 20% [[electrical:​solar:​output|insolation]]) but current will suffer. ​
-ces"; ​ their voltage pops up into the normal range in any kind of meaningful light(>= 20% [[electrical:​solar:​output|insolation]]) but current will suffer. ​+
 Partial shading in this context means: Partial shading in this context means:
  
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   * but not evenly on the panel -- it is different on some cells   * but not evenly on the panel -- it is different on some cells
  
-To prevent power from rushing into the shaded ​cells panels have bypass diodes. ​ Basically the shaded ​panels ​get cut off, electrically speaking, to protect them. +To prevent power from rushing into the shaded ​string and overheating them, panels have bypass diodes ​between the strings.  Basically the shaded ​strings ​get cut off, electrically speaking, to protect them. In a perfect world each cell would be protect by a lossless, costless diode but that's not possible yet.  :-)
  
  
electrical/solar/shading.txt · Last modified: 2020/03/17 13:25 by frater_secessus