I don't know how to start this but am trying to bring out one of the threads that has been running in my mind since long. Call me "Global warming" fanatic or "kanjoos" (you will know in a short while why am saying this), I am going to put down the thoughts and the research I did after that. Also this is not only just about me or my thoughts, the suggestions I have would help you to mitigate your rising electric bills to some extent. The use of electric/electronic devices in our life is so common that sometimes we even don't realize that we are using them. We need to burn fuel in order to generate electricity, and combustion of fuel leads to more green house gases in the atmosphere which leads to global warming. See its that simple!!
I have always been thinking as how much electricity would a given device consume in a given time? Lets say my TV is on but am not watching it, so what impact would this have on the environment? There are two parts to above questions a) how much electricity my TV consumes? b) what impact would this have on the environment?
First I will try to answer the first question.
I know that there is a very basic formula to calculate electic consumption of a given device, but me being a dumbo in Electrical stuff (e.g. it was tough for me to remember ohm's law) had to search it online and I came across this nice website by Michael which gives me all the necessary information.
Thanks to this website and its author, now I understand HOW MUCH ! electricity a given device consumes in a given time.I am putting down some interesting information but I encourage you to go through the site for more information if you are still reading this blog.
Usage of electricity is measured in kWh => kilo watt hour and we are billed according to that number. The formula to calculate kWh = (# watts usage per hour * # hours )/1000.
We are charged according to amount of electricity we use and the unit is kWh=>kilo watt hour. Nearly everything you can plug into the wall has a label that says how much electricity it uses i.e # of watts. (It may be printed directly into the plastic or metal.) You will have to make some efforts to find it.
If the label only gives the number of amps and not the number of watts, then just multiply the amps by 120 (for USA) to get the number of watts.
e.g. it the label says 65W, it means the device consumes 65Wh every hour.
if it says 5 amps, then it means the device uses 5*120 W hour every hour. (120 for USA and I think for India and European countries it is 240).
Now if you know how much you are charged per kWh then you can exactly calculate how much a the usage of a give device can cost you. Lets take an example so that I can help you take off some $s from you electric bill -;)
I have cable internet at my home, and I also use wireless router so that I can get internet in any room without need a physical connection between the computer/laptop and cable modem. For the sake of the study we will exclude the electricity consumption by the computer/laptop. Both the cable modem and the wireless router use electricity when they are turned on. My modem uses 18W and router uses 16W, so when I use them both, the total usage is 34W every hour. Lets say I don't switch them off during night (when we are not using it). Lets say we don't use internet from 11pm to 5 pm other day as we sleep at night and work till 5 pm. So in total 18hrs of non usage time. So the total kWh = 34*18 = 612/1000=0.612 kWh . In my last electric bill I saw that I am charged $0.22/kWh, so that totals 0.135 $ per day => $4 /month. So see now I am saving $4 every month just by switching off the modem and wireless router and you can too!.
Thats enough for now, will be adding more information soon as this post seems to have grown a bit big!!!!
I have always been thinking as how much electricity would a given device consume in a given time? Lets say my TV is on but am not watching it, so what impact would this have on the environment? There are two parts to above questions a) how much electricity my TV consumes? b) what impact would this have on the environment?
First I will try to answer the first question.
I know that there is a very basic formula to calculate electic consumption of a given device, but me being a dumbo in Electrical stuff (e.g. it was tough for me to remember ohm's law) had to search it online and I came across this nice website by Michael which gives me all the necessary information.
Thanks to this website and its author, now I understand HOW MUCH ! electricity a given device consumes in a given time.I am putting down some interesting information but I encourage you to go through the site for more information if you are still reading this blog.
Usage of electricity is measured in kWh => kilo watt hour and we are billed according to that number. The formula to calculate kWh = (# watts usage per hour * # hours )/1000.
We are charged according to amount of electricity we use and the unit is kWh=>kilo watt hour. Nearly everything you can plug into the wall has a label that says how much electricity it uses i.e # of watts. (It may be printed directly into the plastic or metal.) You will have to make some efforts to find it.
If the label only gives the number of amps and not the number of watts, then just multiply the amps by 120 (for USA) to get the number of watts.
e.g. it the label says 65W, it means the device consumes 65Wh every hour.
if it says 5 amps, then it means the device uses 5*120 W hour every hour. (120 for USA and I think for India and European countries it is 240).
Now if you know how much you are charged per kWh then you can exactly calculate how much a the usage of a give device can cost you. Lets take an example so that I can help you take off some $s from you electric bill -;)
I have cable internet at my home, and I also use wireless router so that I can get internet in any room without need a physical connection between the computer/laptop and cable modem. For the sake of the study we will exclude the electricity consumption by the computer/laptop. Both the cable modem and the wireless router use electricity when they are turned on. My modem uses 18W and router uses 16W, so when I use them both, the total usage is 34W every hour. Lets say I don't switch them off during night (when we are not using it). Lets say we don't use internet from 11pm to 5 pm other day as we sleep at night and work till 5 pm. So in total 18hrs of non usage time. So the total kWh = 34*18 = 612/1000=0.612 kWh . In my last electric bill I saw that I am charged $0.22/kWh, so that totals 0.135 $ per day => $4 /month. So see now I am saving $4 every month just by switching off the modem and wireless router and you can too!.
Thats enough for now, will be adding more information soon as this post seems to have grown a bit big!!!!
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