| Okay it took a while. My brain is taking longer and longer accessing files.
Here it is why multicrystalline panels tolerate shadows from rigging better.
This is a simplified explanation.
Each cell in a panel produces 0.5 volts. To be able to overcome the resistance in connecting wire and create a potential difference to “force” current into a battery a series of 32-36 cells are strung together to give a 16-18 volt panel.
Single Crystal Panel
Shading one cell cause a greater voltage drop than 0.5 volts. The rest of the cells have to overcome the resistance in that “dead” cell. A further reduction in voltage. The voltage difference between the panel and the battery is what “drives” the charging process. The “3 volt” differential is now for;
- 1 shaded cell, 2 volt differential, 2/3 the charge rate.
-2 shaded cells, 1 volt differential, 1/3 the charge rate
-3 shaded cells, 0 volt differential, zero rate of charge
Multicrystalline Panel
There are numerous parallel series of cells. Anywhere from 10 to 50 or more parallel series of 32-36 cells. All the parallel series of 32-36 cells are interconnected. If the shadow of a rigging line crosses the panel the “dead” cells are bypassed by rerouting the current to the other cells in the parallel circuits. There is some loss in output.
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