Quick Test of Eco-Worthy MPPT Controller
Ordered it on 3 Oct arrived at the door 23 Oct free shipping. Controller rated to 42V so watch that. EG I have it on one 230w panel, Voc 37v at 25C, so would be more Voc at cold temps. Not ab...
Forum Discussion
BFL13 wrote:
Are you saying it is ok to compare two 120s in parallel and PWM with a single 240w and MPPT, but not with two 120s in series and MPPT?
Nope, I'm just saying that the MPPT gets one of its advantage from having the ability to use the higher input voltages which allow for more daylight harvesting during low light conditions (dawn, dusk, overcast, etc...).
Comparing values at different times and days with different set-ups will not yield valid comparison results.
EDIT: The only way to truly compare performance specifications between 2 systems is to have them operate under exactly the same conditions.
This means you would need 4 identical panels, 2 identical battery banks, identical loading, a PWM and MPPT controller having the same output specifications, and identical setups as far recommended installation practices. Then you should test under various environmental conditions as well.
Just my $0.02...
