Multiple MPPT loads for PV panel -- bad idea?

if i understand you correctly, you are trying to run a load from an mppt charge controller without a battery in the system?

i dont think that will work.  the controller will need to see a battery, and the battery should be wired in before the pv.

once you put the battery in, you can put run the pump off of it with a switch or dc timer, and the same for the unknown variable load. 

james
altE staff

ahh, you ruined my general response with a specific outlier.  I should know better than to assume. 

two mppt controllers would work in parallel. each connected to its own pv, serving same battery.
 
two of the circ pumps can work from one pv source (assuming enough power).

what i dont know is how one pv direct pump and one mppt controller would work together tied to the same module.  that i have not tried, nor had anyone i knew when i asked.

i understand what you are saying with the pv direct setup, but being that (if you do mean a laing) you are hitting it with a pv sledgehammer of 4x its required wattage, the battery would likely have the same affect in terms of run speed(excepting the obvious absence of daylight at night).  the running at night issue can be resolved with a dc timer or switch if you wanted to run everything off the battery baseline.

anyone out there tried what alice is after?

good luck,

james
altE staff