okay, so my roomie just bought a pressure cooker so he can save money by cooking his own food instead of going to the cafeteria. now i saw on teh label that its a 1000W machine, im concerned about how much our electricity bill will rise with this one.
Anybody knows how much its gonna cost is for every hour of use?
lets just say the power company charges 35cents per hour
i mean per kilowatt hour
Best answer:
Answer by sparky_dy
One unit of electricity is a kilowatt-hour, i.e. one kilowatt times one hour. So a 1kW appliance will use 1kWh of energy every hour.
To find the cost per unit, insert your payment key into your electricity meter and press the display button several times to cycle through the various modes. At least one of them will be pence per kWh (there may be several rates for the various peak and off-peak times; your electricity supplier should have given you a leaflet explaining which rate applies when.)
My supplier charges about 14p for a kilowatt-hour in the daytime.
What do you think? Answer below!
Power consumed by an electric appliance is equal to the wattage of the appliance multiplied by the time for which it is used.
ReplyDeleteFor every hour of use of a 1000 Watt appliance, Power consumed is equal to 1000 W x 1 hour.
or, P = 1000 Wh
= 1 kWh
1 kWh is known as 1 unit of electric power.
Therefore, you'll be charged for every unit of electricity consumed.
In our area, we are charged in different categories, for example, for units consumed between 0 and 100, the charge is less as compared to the units consumed from 100 to 500.
The cost of electric power depends quite a bit upon where you live. For 1000W for 1 hour around 20c US might be a good guideline unless someone is fleecing you with an adjusted meter.
ReplyDeleteA pressure cooker is unlikely to run more than 30 minutes to cook a meal, so the max cost per meal would be around 10c. However I suspect that the 1 kW (1000W) is the max. consumption and the cooker has a thermostat or pressure switch, so that the 1kW will only be used to heat up and get to pressure - maybe 5 minutes. Thereafter much less power (only around 100W) will be needed to run the cooking process. So 2 or 3 cents should do it!
EDIT: At 35c a kWh the above final estimate would (I think obviously) work out at around 5c.