I have one shed row with 4 waterers and another barn with 8(2 in field,6 in stalls) .have one waterer setup with 8 waterers on one fuse box and another setup with 4 waterers on one fuse box.They all use a 250 watt heater.
The setup with 8 waterers uses 2,000 watts. 250 watts x 8 = 2,000.
The set up with 4 waterers uses 1,000 watts. 250 watts x 4= 100 watts. In the winter if our power goes out for several days in cold weather,they freeze. I could haul over portable gas or propane generators,but wondered if there was a way to use solar power?
I suggest that you look into a wind turbine rather than a solar charger as your location only gets nine hours of daylight in January without any guarantee of the conditions being favorable for solar charging (no clouds, the panels not being iced over) Also the storage batteries lose storage capability as temperatures decrease (most testing/rating is at 72F). If the storage batteries freeze due to being discharged they could explode upon attempted recharging
3,000 watts per hour is a heavy load that would be 72,000 watts per day. A single 200Watt 24 volt solar panel is about 52 inches by 36 inches.
Have you considered a geothermal loop system?
