Opinions on 100W Solar System
I've done my reading and research and think I have a system figured out. Limited space on the roof of my 815 so plan on going with a single panel. Maximum space available is 52 x 25, but optimum...
Forum Discussion
Bob B wrote:
Great thread ..... I have been considering solar for a while, but life has gotten in the way and I haven't gotten it done ....I hope I don't redirect the thread too much, but I had heard that some of the new panels have internal circuitry that will make them less susceptible to partial shading.
Anybody have knowledge of this ...... what panels would have this technology?
In higher voltage panels there are bypass diodes for sections of the panel... This causes the voltage of the panel to drop but when you are dealing with high voltage, way greater than you battery (s) or grid/inverters this could work... like home solar.
In our 36 cell panels that most of us have the voltage per CELL is <>.5 volts.... Ummmm why and how is that? Well .5 volts X36 cells = 18 volts.... Oh my!
So we could use individual diodes to protect each cell... But what happens to the voltage?
You loose .5 volts for each cell that gets shaded! It just would not work for us very well....
Then there is the cost of bypassing each cell.... uggg.
Edited
If you want to learn more here's a good read..
http://www.pveducation.org/pvcdrom/modules/bypass-diodes
Enough on this subject.
Jim
