Xantrex (Trace) model 4024 inverter/charger - Converts 24 volt DC current to 120 volt AC current. - Connected to 2 series of Trojan L16-HC batteries in parallel - each battery is 6 volts X 4 batteries per series = 24 volts - Charger capable of charging at 120-amps depending upon input.
Generator - Maximum output: ~ 40amps. - Maximum output per circuit: 30 amps. - This translates to a maximum 720 watt-hrs charge
Battery Capacity - 790 Amp-Hours or 18,960 watt-hrs - Ideally, you do not want to discharge below 80% of capacity or apx. 15,000 watt-hrs. - How long before another charge is needed depends upon the loads put on the system.
Example: 1 Microwave @ 0.5 hours of continuous use per day 8 Lights @ 6 hours of continuous use per day 1 Television @ 4 hours of continuous use per day 1 Washer/Dryer @ 1 hour of continuous use per day 1 Hair Dryer @ 0.25 hours of continuous use per day 1 Vacuum Cleaner @ 1 hour of continuous use per day 1 Coffee Maker @ 1 hour of continuous use per day 1 Central Heating @ 4 hours of continuous use per day 1 Water pump @ 0.5 hours of continuous use per day
If the above electrical usage were typical for a day, it would require apx. 6700 watt-hours per day. That means a re-charge of the battery bank would be required in 2.25 days to 3.25 days. If everything was the same but you did not turn on the central heating (say it was summer and not winter) the electrical requirement would drop almost in half and the battery bank would require recharging in 5 to 6 days instead. Re-Charging - Assuming batteries were allowed to discharge to 80% of capacity, it would take apx. 18 hours to re-charge the battery bank. This assumes 2-3 hours of assistance from the solar panels.