Power Consumptions of Various Devices
With the help of a power meter like the P3 Kill A Watt...
I was surprised that most electronics consume very little power. In particular, I was pleased to find that most electronics consume 0 W (rounded to the nearest watt because of the meter’s precision) when powered off in a normal fashion (other than by unplugging).
Computer equipment
- Desktop computer (Nayuki):
- Idle: 123 W, 200 VA
- Full CPU load: 140 W, 220 VA
- Off: 6 W, 13 VA
- Desktop computer (Saba-tan):
- Idle: ~50 W
- Full CPU load: ~60 W
- Laptop computer (Hazumu):
- Idle: 13 W (remember to add other stuff)
- Full CPU load: 32 W (remember to add other stuff)
- LCD display: +1–6 W (depending on backlight brightness)
- Charging battery: +25 W
- CPU fan: +1 W
- 19 in. LCD monitor (ViewSonic VP930b): 20 W
- 19 in. LCD monitor (BenQ FP992): 30 W
- 19 in. CRT monitor (ViewSonic GS790): ~100 W
- Flatbed scanner (Canon CanoScan 4400F):
- Idle (with lamp on): 8 W
- Scanning: 13 W
- Off: 3 W
- Speakers (Logitech):
- On: 6 W (from silence through moderate volumes)
- Loud: ~10 W
- Really loud: ~25 W (not willing to go further, risk of damage to me and equipment)
- Off: 1 W
- Router (D-Link DI-604): 5 W
- DSL modem (Siemens SpeedStream 4200): 3 W
Electronics
- 27 in. CRT television (JVC): 60–90 W (depending on scene brightness)
- 14(?) in. CRT television (Prima): ~40–60 W (depending on scene brightness)
- Hi-fi stereo (Panasonic):
- Operating: 35–40 W
- Standby: 10 W (one of the worst)
- Video cassette recorder (Hitachi): 10–20 W
- DVD player (Koss): 13 W
Appliances
- 900 W microwave oven:
- Full power: 1430–1460 W, ~1550 VA (remember to add lamp)
- Standby: 1 W
- Lamp: +20 W
- Electric kettle: ~1400 W
- Rice cooker: 640 W
Links
Last modified: 2008-01-09-Wed
Created: 2007-04-15-Sun