Apr-18-2017 05:34 AM
Apr-19-2017 09:07 AM
time2roll wrote:That's a monster controller that would handle this with ease.
Midnight 150 converts the 75vdc to 12vdc for charging. This is how they are designed to operate..
Apr-19-2017 08:13 AM
Apr-19-2017 07:55 AM
Apr-19-2017 07:01 AM
johnm1 wrote:
I stand corrected. The panels (SolarWorld Sunmodule Plus SW 290 - 300 MONO) are 36ish volts.
Apr-19-2017 04:53 AM
Apr-19-2017 04:36 AM
Apr-19-2017 04:36 AM
johnm1 wrote:
Does it really matter what volts or amps I work with ... as long as it's wired correctly?
Apr-18-2017 07:49 PM
Apr-18-2017 06:52 PM
johnm1 wrote:
Won't the loss be too big if I run the MC4 cables (10 gauge wire) all the way to a combiner box sitting next to the charge controller?
I also need to do the math on the cost of MC4 extension wire vs 2 or 4 gauge wire and lugs and heat shrink, etc.
Apr-18-2017 05:22 PM
johnm1 wrote:
Won't the loss be too big if I run the MC4 cables (10 gauge wire) all the way to a combiner box sitting next to the charge controller?
Apr-18-2017 03:48 PM
westend wrote:
Most guys are also squeamish about pulling wire through the roof. A marine bulkhead fitting removes that worry.
Apr-18-2017 02:10 PM
johnm1 wrote:
Won't the loss be too big if I run the MC4 cables (10 gauge wire) all the way to a combiner box sitting next to the charge controller?
I also need to do the math on the cost of MC4 extension wire vs 2 or 4 gauge wire and lugs and heat shrink, etc.
Apr-18-2017 01:36 PM
time2roll wrote:Yes, these are not likely 12v panels.
These panels should be closer to 9 Imp each.
Apr-18-2017 12:55 PM
johnm1 wrote:Ok.
I didn't say anything about doubling the solar output. I said I want to start with 2 x 295W panels and might want to add more ... as in more solar, not necessarily more of the 295W units
Apr-18-2017 12:49 PM