2007-12-22 02:24:50 · 1 answers · asked by Anonymous in Consumer Electronics ➔ Other - Electronics
1 unit of electricity is 1 kilowatt-hour (kWh); that is to say 1,000 watts burning for 1 hour,
The most power-hungry devices are heaters. Electric showers use around 6 kWh, but they only run for a few minutes a day.
A 2-bar electric fire uses 1.5 kWh all the time it is on. An electric iron uses around 0.75 kWh but, as it is controlled by a thermostat, it is only on 50% of the time it is plugged in.
An electric cooker is a monster. That said, it is thermostatic and so is switching on and off on a 50% duty cycle while cooking.
The air conditioner has a hefty motor in it; another big user. Then there is the tumble dryer (2 kWh), washing machine (about the same if it is cold fill only).
Against all this, the lights pale into insignificance. If you really want to get a handle on your electricity consumption, take a daily meter reading for a week just before you go to bed, and one weekend take hourly readings from the time you get up until you go to bed.
BTW cfl tubes 0.0011 kWh, tubelight 0.065 kWh, TV 0.25 kWh. Hope this gets you thinking!
2007-12-22 08:07:41 · answer #1 · answered by Michael B 6 · 0⤊ 0⤋