Here is the list of the appliances you selected to make the calculation. Items To Power Quantity Running Watts Hours Per Day KWH Per Day Air Compressor Single Phase 1 3300 0.2 0.66 TV 1 90 4 0.36 Laptop computer 1 90 6 0.54 Washing machine 1 1200 .2 0.24 Toaster 1 1500 0.2 0.3 Rangehood 1 100 1 0.1 Kettle 1 2200 0.2 0.44 Electric Stovetop – Large 1 2000 1 2 Electric Oven 1 3400 .5 1.7 Dishwasher 1 1800 1 1.8 Vacuum Cleaner 1 1400 0.1 0.14 Wood Heater 1 60 7 0.42 Lights 12 11 8 1.056 Fan – Ceiling 1 40 5 0.2 Air Conditioner – Large 1 1800 4 7.2 Here are the final calculations as per the appliance's selections Potential Load KW 19.11 Average KWh Per Day 17.16 Percentage of appliances used at the same time 50% Number of days reserve power 1 Winter average daily effective solar 3 Required three phase power No Solar Array Size 5.72 Battery Storage 17.16 Inverter Size 9.56 Phone Number : 1300669256 Email : onlinesales@commodoreaustralia.com.au