P3 Kill-A-Watt Power Consumption Report

Stumble it!

I have a P3 Kill A Watt power meter. I’m facinated by how much energy my devices take up. Here are the results of my testing. Dollar values are based on my electricity rate: $0.0836 per KWH.

  • Digital Picture Frame: 20-22 Watts during boot, 19 Watts after the drive stops spinning. ($15 for a year of 24×7 usage)
  • Christmas Tree Lights: 280 Watts ($15 for 16 hours a day, 40 days).
  • HP Pavilion ze4900 laptop, not charging the battery, sitting idle, screen on: 22-23 watts ($16 for a year of 24×7 idle time usage)
  • Compaq nc6220 laptop, not charging the battery, sitting idle, screen on: 33 watts
  • Compaq nc6220 laptop, not charging the battery, sitting idle, screen off: 28-29 watts
  • AV Rack (with TV, Receiver: Kenwood VR-7070, VCR, CD Changer, DVD player, PS2 and Gamecube) while all components are “off”: 18 Watts, or $13 per year.
  • AV Rack (above) while receiver is on, listening to the radio at normal volumes: 78 watts. Therefore the receiver alone is drawing 60 watts while on. At high volume levels, the receiver will draw 130-140 watts, varying greatly with the level of bass in the music (I don’t use a powered sub-woofer).
  • AV Rack (above) watching a DVD (TV, receiver, and DVD player on): 233 watts. Therefore watching the complete Lord of the Rings Extended version DVDs would cost $0.15.
  • AV Rack just watching TV: 160-164 watts.
  • Washing machine: 0.22KWh per large load, or $0.02 per load. This does not include the power required to heat the water.