At our community college we use Electrical Wiring Residential by Ray C. Mullin published by Thomson Delmar Learning and this text book uses a 3232 square foot house with the following connected load; 7 small appliances (kitchen), 1 laundry, 14.05 KW cooking appliances, water heater, dishwasher, garage door opener, disposer, water pump, dryer, 2 bath vents with heat, attic exhaust fan, whirlpool tub, electric heat and ac and the total connected load comes to 147.4 amps.
Plenty of more amperage should a 200 amp panel be installed but a waste of money and our natural resources should a 320 be installed.
On a side note five years ago during Christmas when we had a house full of people eating and having a good time screaming at the kids running in and out the house letting the heat out my printable amp meter only registered a total amp draw at its highest draw during that 24 hour period of 47 amps. There were a total of 75 plates used for eating so the cooking was continuous during this time. Croc pots, warming trays, coffee makers and let’s not forget the lights.
1000 watts at 240 volts equals just over 4 amps. We pay for our electricity by the kilowatt (1000 watts) so if you needed all that current at one time your electric bill would cost more than your home. If my home pulled 47 amps 24/7 then my monthly electric bill would be over $900.