Those are interesting panels, at a nice price. Would work well with a MMPT.
I made a mistake, my motor is 2.5A, and using
http://www.sierrasolar.com/articles/water_pumping/calc_water_pumping.html
I've calculated either 94 watts, or 199w, depending on which pump head I'll use
(procon 2.5gph/5.3gph)
I like this LCB:
Model # PPT 90 - 6
Features
Voltage Limited Output
Greatly increases water flow, even under reduced sunlight
conditions (over 40% likely)
Transient Protected on the input and output
Float Switch input for on/off control
Ultra High Efficiency >94 %
Weatherproof NEMA enclosure
Nominal Voltage (V) 96
Nominal PV Input (V) 96
Maximum PV Input (V) 160
Maximum Output Voltage (v) 99
Maximum Output (A) 6 continuous
Maximum Output (A) 20 for ten seconds
Efficiency >94%
http://www.solarconverters.com/product_frame.html
QUESTION: At a maximum PV INput of 160v, those 50w Panels have an Open Circuit Voltage
of 85v. Would that be an over voltage? Or do I use the "Voltage at mpp" figure of 58v, which is still pushing things for the LCB, although the motor can handle it.
I have 1000 feet of 2/0 wire to the pump, so voltage drop isn't a problem.
Thanks
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