Solar Panel Voc-MPPT?
Wondering if there is any relationship between measured Voc and MPPT performance with a 24v panel. My 12v panel has a Voc rating of 21.9 and Isc of 8.2, but I often see 8.2ish when Voc is only 20....
Forum Discussion
Amps are what am. To clarify, I could not get the full rated Isc once battery (so panel) voltage rose above mid 13s due to the IV curve. EG where rated Isc is 8.2, 7.9a was more like it in the 14s.
In the mid 14s you are getting pretty high in battery SOC, so your amps will taper from that acceptance rate reduction too.
The Eco-Worthy MPPT controller I am getting drops out of MPPT and goes straight PWM for its Absorption stage. JiminDenver says I will not notice that, because amps will be tapering then.
The IV curve for the 230w panel runs out way past 15v and the panel does not 'see' battery voltage anyway, but now there is a mish-mash of other effects that want to reduce how many amps get to the battery.
I would compare MPPT amps with what I am used to at battery voltages in the low 13s before it all goes funny at higher battery voltages.
In the mid 14s you are getting pretty high in battery SOC, so your amps will taper from that acceptance rate reduction too.
The Eco-Worthy MPPT controller I am getting drops out of MPPT and goes straight PWM for its Absorption stage. JiminDenver says I will not notice that, because amps will be tapering then.
The IV curve for the 230w panel runs out way past 15v and the panel does not 'see' battery voltage anyway, but now there is a mish-mash of other effects that want to reduce how many amps get to the battery.
I would compare MPPT amps with what I am used to at battery voltages in the low 13s before it all goes funny at higher battery voltages.
