treefort wrote: »
I would need 1647 watts of panels if I was to use a 1kWhr/day fridge. Twice the panels required if I use a 360Whr/day 12V Sundanzer.
I thought I had taken the 12V voltage drop over distance problem into account by running 14AWG to all the 11W max LED lights, and odd cigarette lighter adapter(2A total max). That was at the time where I didn't realize the total amount of feet in a voltage drop calculator is there and back.
So, at 2A, I can go 21'. That's going to be short for a few runs. So, maybe I will run AC to the lights and deal with the 10% loss from the inverter.
I still think I should probably run DC for the Sundanzer, the water pump(the AC one is over twice the cost),
and a cigarette lighter hub for charging phones. Why would the voltage drop to 10V?
I monitor remote solar powered oil and gas well sites(low power systems..maybe 400W) all with AGM batteries, and if they dropped to 10V the LVD would drop them out or devices would brown out, gas wells would shut in, operators would be crying..
zoneblue wrote: »
The place to start is your expected load Wh/d. You do have to draw a line in the sand somewhere, and demand is where it starts. Demand dictates PV, PV dictates battery. Bill probably said all this already