How much electricity is it really wasting?, and would it not be better to switch off the 4 lights in the room?
The best way to compare the cost of running different appliances is to look at their power consumption, which is measure of how much power they use in Watts. The following list points out typical values for the wattage of some devices you would find in your home so that you can compare them.
|100W light bulb||100W||100W|
|25" colour TV||150W||150W|
|3" belt sander||1000W||1000W|
|60W light bulb||60W||60W|
|9" disc sander||1200W||1200W|
|Electric Heater Fan||2000W||3000W|
|Fridge / Freezer||150W||400W|
|Hair Blow dryer||1800W||2500W|
|Home Air Conditioner||1000W||4000W|
|Home Internet Router||5W||15W|
|Inverter Air conditioner||1300W||1800W|
|Submersible Water Pump||400W||400W|
|TV (19" colour)||70W||100W|
An important point is also to bear in mind the length of time for which the device will be used. For example an electric blanket may be used for 2 hours, but a hair drier for 5 minutes. Therefore the blanket uses 200W * 2 hours = 0.4kWh. The hair drier uses 2KW * 0.0833hours = 0.1666kWh. So using the blanket costs roughly 2.5 times as much as the hair drier.
All values reported here are estimates, you should check the appliance labels or literature to find out the correct power consumption.
Comments For This Page
By Pinninti kranti on 26th August 2016
Thanks so much it will my customers their energy consumption.
By Nsubong Udotai on 19th August 2016
How much time.sir
On 7th August 2016
Hi Skeptical. Thanks for the feedback. There is always room to fine tune the figures on this page. There is often a range of power consumption for devices that do the same thing. I have lowered the lower range of the electric kettle. I see numerous 3k products for sale but agree with your point that there are lower power consuming models. The hair drier figures had been updated on the table in the past but the example in the text did not change in line with this, I've updated figures in the example.
By Daft Logic on 4th August 2016
Some of your wattages seem realistic but a lot don't. Even in your own example of a hair blow dryer in the chart you said 2000 - 2500 watts. In your example of total energy usage you said one kilowatt for a blow dryer. All electric kettles that I have ever seen use 1250 Watts, your chart shows 2000 - 3000 Watts.
By Skeptical on 3rd August 2016
Extremly helpful to calculate solar enrgey required by my house and no of panels required and budgeting,cost saving per month/per year/recovery etc etc
By Arun Malhotra on 31st July 2016
Really informative... It's help me in my daily routine life to save power...
By Vicky.... vl.. on 24th July 2016
Okay, so how do I work out the cost if for instance. .I have 10 globes of 40 watts=400 watt and use them for 8 hours a day and we are currently charged R1.70 per kilowatt from goverment? And my kettle that is 2000 watt and takes 5 minutes to boil? How much does it cost me?
By George on 24th July 2016
This has been helpful in making decide what load is going into my inverter batteries and how I can increase inverter battery time, based on my house load/watts.
Better turning on the standing fan then the ceiling fan, using energy saver 11/18w bulbs than higher rating.
Thanks a lot. Very helful
By Civilian colonel on 19th July 2016
Thanks. Desktop Computer has been updated.
By Daft Logic on 19th July 2016
My Desktop Computer consumes 450watts
On 19th July 2016
The max power output for the Home Air Conditioner has been increased to 4k W
By Daft Logic on 5th July 2016
Thanks. It's very helpful to me.
By Abishek Chendur on 4th July 2016
When you said home air conditioner you must have meant a small window unit air conditioner. Or maybe you only listed the power for the indoor unit. The full power draw for a whole house air conditioner is more like 3000-4000W. Inverter based whole house air conditioner is about right as listed, with a lot of "it depends".
On 2nd July 2016
Thank you very much. Really it very helpful. let me just Title it "Great Answer to Question".
By Matthew, Ukpono on 28th June 2016
very helpful tnx
By aylian on 25th June 2016
Very helpful but a 500W rating for a washing machine? I might suggest you take a reading while the water heater is on. It's a lot morw than 500W!
On 23rd June 2016
This information is really helpful, it meets me at the time I needed it most making it awesome....
Thank you very much
By Awosika Damilola Samuel on 22nd June 2016
thank you !!!
On 21st June 2016
Thanks...was struggling for my physics project about electricity consumption.....the site helped me figure it out !!!
By Aditya on 20th June 2016
thank u for ur information
On 20th June 2016
This is awesome information for economiy in the house and EXCELLENT!!!!!!!
By Nitin on 19th June 2016
By mahammadsk on 19th June 2016
Its too informative and it helped me in a situation which I thought it would be difficult,but now it has changed.Now its too easy for me and I'm sure that 4 u all projects will be easy...
By Parvathi-19/06/2016 on 19th June 2016
thanks this really helped in my school project
By Chanchal on 17th June 2016
Its really very helpful
On 15th June 2016
Thank you....it's very helpful
By Neeraj on 15th June 2016
Thanx it helps a lot
On 14th June 2016
Semi automatic washing have two motors for washing other for spinning of different wattage if i am correct these are 500watt & 250 watt
On 12th June 2016
This helped me a lot in my school project . Thank you
On 10th June 2016
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