Electrical Power Requirements of Various Processes

Pretty obviously, different electrical devices need different amounts of electrical power. Generally:

• Devices that heat consume the most power.

• Devices that produce motion consume less.

• Devices that produce light consume less still.

• Devices that produce sound consume least.

  The above are general. A high powered speaker or a blender for example, may consume more power than a power saving light bulb. The power requirements of some common appliances are shown below. Notice that some devices consume power to produce more than one of the above – heat is always a by product.

  Heating Appliances	Power Consumed (Watts)
  Hot Plate	1200
  Coffee Maker	800
  Dishwasher	1300
  Iron	1000
  Toaster	1000
  Microwave	750
  Washing Machine	500
  Devices that Produce Motion
  Blender	300
  CD Player	20
  Printer	100
  Table Fan	20
  Drill	1000
  Disc sander	1200
  Vacuum Cleaner	1400
  Devices that Produce Sound
  Clock Radio	1
  Stereo	30
  Others
  Light Appliances
  CRT Television	200
  Incandescent Light Bulb	100
  Efficient Light Bulb	20
  Others
  Laptop	50
  Desktop PC	300
  Satellite Dish	30
  VCR	40