Typical Household Energy Use:

50% - Heating and Cooling
14% - Water Heater
10% - Lighting
8 % - Other ( Microwave, Stoves, Ovens, Coffeemaker and Dehumidifiers)
6 % - Washer and Dryer
6 % - Electronics
5 % - Refrigerator
1 % - Dishwasher

Source: www.Energystar.gov

Common home appliances that need lots of power

Appliance Typical Wattage  (W)

Central Air Conditioning 2,300-6,500W
Dishwasher 1,200W
Electric Clothes Dryer 5,500W
Electric Space Heating 2,000-10,000W
Electric Water Heater (50 Gallon) 4,500W
Freezer 540-700W
Hair Dryer 1,500W
Room Air Conditioner 500-1,500W
Toaster 1,150W