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 (Incandescent)||100W||100W||0W|||
|25" colour TV||150W||150W||N/A|
|3" belt sander||1000W||1000W||N/A|
|60W light bulb (Incandescent)||60W||60W||0W|||
|9" disc sander||1200W||1200W||N/A|
|Electric Heater Fan||2000W||3000W||N/A|
|Fridge / Freezer||150W||400W||N/A|
|Hair Blow dryer||1800W||2500W||N/A|
|Home Air Conditioner||1000W||4000W||N/A|
|Home Internet Router||5W||15W||N/A|
|Inverter Air conditioner||1300W||1800W||N/A|
|LED Light Bulb||7W||10W||0W|||
|Smart Phone Charger||4W||7W||N/A|
|Submersible Water Pump||400W||400W||N/A|
|TV (19" colour)||40W||100W||1W|||
|Water Filter and Cooler||70W||100W||N/A|||
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.
Further Reading and Relevant Articles
Some relevant online articles for further information and reading.
Comments For This Page
Good but make downloadable document.
By Lai Lawal on 16th February 2017
very useful information is getting here,thank you so much
On 8th February 2017
which of these is better, running a 5 100ah of inverter battery with a 3.5kva inverter, and with a 7kva inverter
On 8th February 2017
Thanks a lot for this page. it helps me in calculation you are the best...
On 21st January 2017
Really useful page, thanks for putting this up. Priya, you are a muppet.
By SBH on 17th January 2017
Page is very useful. Thank you
By Your Name (optional) on 17th January 2017
thank you so much this helped a lot for my education
On 17th January 2017
Thank u sooo much, u help me a lot!!!
On 15th January 2017
0W in the standby column means it consumes no power when not being used. So appliances with a "hard" switch that cuts off all power rather than go in to a standby mode.
By Daft Logic on 11th January 2017
What does oW mean?
I'm trying to figure out if appliances that are plugged in with the power switch on (like in the UK) consume any power?
I'm talking about appliances like a water kettle, bread toaster, kitchen fan extractor etc.
By Sam on 11th January 2017
Mower has lots
On 6th January 2017
Hi I was wondering how much energy it takes to charge a mobile phone or a tablet like an iPhone.
By Jan on 3rd January 2017
Enter your message
On 4th December 2016
You could also add cost of power consumption.but it is good
By Aravind on 15th November 2016
thank you sooooooooo much !!!
By liwin paul on 15th November 2016
Water Filter and Cooler has been added
By Daft Logic on 2nd November 2016
May I get to know about the wattage of water filter ........
On 2nd November 2016
thank you so much!! you made my project easy!!! Maybe you could add what types of energy the appliances use?? but the is so good!!
By Eloise on 30th October 2016
Hi Ben, its an electric shower
By Daft Logic on 29th October 2016
Other than the largest power consuming device in the home, what is a 'power shower'?
By ben on 28th October 2016
It helped me a lot....thanks...it not only helped me in my project but also made me aware about power saving
By Ritam on 22nd October 2016
Hi Priya, can you explain why it is very bad please? We are always keen to improve things.
By Daft Logic on 18th October 2016
It was useless for my project
By Priya on 18th October 2016
Max, you have 2 good suggestions. These aren't provided currently but there will be updates made to add these in soon.
By Daft Logic on 3rd October 2016
videocon champ 14 how many watt
By arun chy on 2nd October 2016
What about the stand-by states?
By Max on 30th September 2016
This really helped my school project
On 25th September 2016
Very helpful for the project
On 20th September 2016
Interesting information ..!!!
By Mahesh verma on 19th September 2016
On 1st September 2016
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