Usefulness Of MPPT Technology
This isn't a trick question. I wish to take a "Short Course" in the reality versus hype of MPPT control... Users who have MPPT and can report real-life experience... Let's say I get a pair of panel...
Forum Discussion
JiminDenver wrote:
BFL
Mex said I would like to end up with 30-40 amperes potential @ 28.0 volts
This could be all wrong! :(
That's like 80a at 14v? anyway, call it 1200w. Four 300w panels?
a 300w panel will have about 40Voc?? ( need example) and about 11a Isc? needs two controllers each good to 100Voc and 22a + margin
But just using the Tracer line of MPPT controllers, a 30a is $100 more than the 20a, both 100Voc, so if possible can reduce panel amps so can do with two 20ampers ($120 each) and save $200 on controllers?
http://stores.ebay.ca/Sure-Electronics/Solar-Charger-Controller-/_i.html?_fsub=4292298016
