SOLAR
I am going to put solar on and I was looking to get this http://www.renogy-store.com/200W-12V-Monocrystalline-Premium-Kit-p/kit-premium200d.htm with a 40A MPPT controller or the 300W setup up to 400W....
Forum Discussion
I guess I should have said the MW is 900W so a little less toaster 1200w. really don't want to run anything else just warm up food or toast a frozen waffle.
Lets look at a little math here from your figures: MW, 900 watts,120 vac equals 7.5 amps times 10 to get it to dc amps is 75 amps. It ignores inverter losses.
Two 12 volt 80 Ah batteries in parallel is 160 Ah. We don't want to go below 50% SOC, or use over 80 Ah. If the inverter is 85% efficient then your current draw is ~86 amps.
Now the good side is we don't usually run the MW for an hour but there are battery factors that may not let you get that kind of current even for a short time. A high current like that may cause the inverter to exceed it's low voltage cut off point for one.
The math indicates 2 100 watt panels at a 5% ROC are sufficient for a 106 Ah battery bank. 5% is the very lowest you want to recharge the batteries at per most manufacturers.
Bottom line is like others said you will need more solar and a much larger battery bank.
4 GC-2's or a 450Ah battery bank wants 424 watts of solar for the 5% ROC. My suggestion would be 2 250 watt panels @24 volts Vmp feeding a MPPT controller and you might be ok.
