Serial vs Parallel Solar Panel Shading
I was asked if a post in another thread if this "Serial is actually better for shading (than parallel) if that is a concern for you." was a typo. It is not a typo but panel shading is not always under...
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ScottG wrote:12V panels in parallel with a PWM controller are a good choice for RVs with 12V batteries.
Thanks for this explanation.
I plan on doing some solar in the distant future. Hopefully I'll remember this!
In recent years there has been a sea change in panels as production ramped up for commercial, grid tie and off grid applications. As a result the 24V panel cost per watt is half of 12V panels today. And the watts/sq ft is better. This offset the higher MPPT cost for me in 2014. Since then there have been posts of lower cost MPPT offshore controllers that are very adequate. So lots to consider.
