I put together a diagram of my 12 volt system and I would like a check on if I have the right size protection devices included.
The solar panels in the diagram aren't what I'll be using. I can get a bigger bang for the limited roof space by going with two 320 watt Mission Solar panels and then two of something else, but I haven't figured out what that something else is yet. The other panels will probably go on their own charge controller.
The new system is on the left side of the diagram. Everything on the right (except for the solar panels at the top) is existing equipment and isn't going to change.
I don't pull much power at the same time. I added up everything in my trailer and if I turned on everything at the same time I could pull about 140 amps. Of course, I would never do that, so my maximum draw is much lower, probably no more than 90 amps. I would hit 90 only when running the coffee maker off of the inverter. My system is beefed up to ensure that I have plenty of runtime over a cold night - or nights - when the furnace is running almost constantly.
Specifications for the Mission Solar 320 watt panels
Thanks. Don't be gentle.
The solar panels in the diagram aren't what I'll be using. I can get a bigger bang for the limited roof space by going with two 320 watt Mission Solar panels and then two of something else, but I haven't figured out what that something else is yet. The other panels will probably go on their own charge controller.
The new system is on the left side of the diagram. Everything on the right (except for the solar panels at the top) is existing equipment and isn't going to change.
I don't pull much power at the same time. I added up everything in my trailer and if I turned on everything at the same time I could pull about 140 amps. Of course, I would never do that, so my maximum draw is much lower, probably no more than 90 amps. I would hit 90 only when running the coffee maker off of the inverter. My system is beefed up to ensure that I have plenty of runtime over a cold night - or nights - when the furnace is running almost constantly.
Specifications for the Mission Solar 320 watt panels
Temperature coefficient of Voc: -0.28% °C
Temperature coefficient of power: -0.377% °C
Temperature coefficient of Isc current: ±0.039% °C
NOCT (nominal operating cell temperature): 46.09 ° C (± 2° C)
Maximum Power Output: 320 Watts
Max Operating Voltage (Vmpp): 34.22 Volts
Max Operating Current (Imp): 9.351 Amps
Open Circuit Voltage (Voc): 40.08 Volts
Short Circuit Current (Isc): 10.028 Amps
Module Efficiency: 18.94%
Thanks. Don't be gentle.