It is nearly impossible to know when the next power outage will occur and frankly, they can be rather damaging unless you have
the tendency to save your computer documents every 2 minutes.

The Watts required calculator allows you to calculate and estimate the backup power supply requirements for your home or office.
The result can be used to decide the type of generator or solar system you require.

Enter the Power (Watts required) before you enter the quantity.

Power Supply Backup Calculation
Appliances Quantity Watts Total
Televisions
Tv 1
Tv 2
Tv 3
UPS
Cooling and heating
  Ceiling
  Window
  Furnace
  Whole house
Air conditioner
  Central
  Room
Clock radio
Coffeemaker
Clothes washer
Clothes dryer
Dishwasher
Dehumidifier
Electric blanket
Freezer (stand-alone)
Hair dryer
Heating
  central, gas furnace
  central, oil furnace
  electric, portable
  Clothes iron
Light bulb
  Incandescent
  Compact fluorescent
  Microwave oven
Personal computer
  CPU & Monitor
  Laptop
Stereo
Range (electric)
Refrigerator
Sump pump
Toaster
Toaster oven
VCR/DVD
Vacuum cleaner
Water heater (electric, 40-gallon)
Well pump (deep well)
 
Total Wattage
 
Calculate things online with just mouse moves.