Pairing up the Eco-worthy 20a MPPT controller
Thanks to BFL confirming that the Eco-Worthy controller plays well when run with another controller, I felt pretty good about combining my two matched controllers. Each had one of the Bosch 245w mono ...
Forum Discussion
JiminDenver wrote:
I felt pretty good about combining my two matched controllers. Each had one of the Bosch 245w mono panels
What you did is not quite "pairing up". When each controller has its own panel, and 2 combined controller outputs are powering same bank in parallel, it will work even if controllers (and/or panels) are not identical. With identical controllers and panels it will work too :)...
JiminDenver wrote:
I'll probably see higher amps up at altitude but only if I'm running the microwave at high noon. With this in mind, I may go with the Rogue 30a instead of the Morningstar 45a for mounting and save the money. Clipping may not be a issue often and it would only be a few amps at peak hours.
Nice thing about Rogue is that in the evening it gives you a report on display - how many Ah in, what was the peak wattage etc. In theory, there should've been clipping for arrays 420 AH and higher. My 490 flat array never showed more than 400W. What clipping... Though winter Mexico at sea level isn't the same as Colorado mountains, especially if you bother with tilt.
Btw, wiring diagram in the Rogue manual describes exactly this scenario - 2 controllers from 2 separate arrays powering same bank. Duh...
