How to measure how much solar we need?
(hope this is right section) Brought home TT last month and now have basics taken care of and RV is road ready. Now starting to think about bigger long term projects. One project is, we would like...
Forum Discussion
jrnymn7 wrote:
Realistically, how much more solar does one need for a flat install, vs. tracking? 5X, 10X, ??
You have to say when and where. The higher the sun (daily and seasonally), the less difference between flat and tilted. You can't average it in any useful way either. You get what you get.
Repeat- at 49.3N in May, for 130w it was 56AH flat vs 70AH tilted, vs 90AH tracking. For 280W at 49.3N in May just do 280/130 times those, it is all proportionate.
So you can do the math to answer the burning question. In my case there, at that time and place, how much flat would do that 90AH same as tracking with the one 130w panel?
90/56 x 130 = 209w flat
It won't come out the same in Arizona in February
