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Trying to workout standby cost is this correct?
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AdventureRocks
Posts: 177 Forumite

in Energy
Hi,
I am looking at buying a countdown plug which turns off the appliance after 30 minutes.
The plug in standby uses 0.3w
My energy cost is 4.1777p per kwh
This is my calculation 4.1777 / 1000 = 0.0041777 per watt
0.3 * 8760 hour in the year = 2628 watss
2628 w * 0.0041777 = 10.97pence per year?
Thank you
I am looking at buying a countdown plug which turns off the appliance after 30 minutes.
The plug in standby uses 0.3w
My energy cost is 4.1777p per kwh
This is my calculation 4.1777 / 1000 = 0.0041777 per watt
0.3 * 8760 hour in the year = 2628 watss
2628 w * 0.0041777 = 10.97pence per year?
Thank you
0
Comments
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Forgive me but surely the calculation that you need to work out is the cost of the plug compared to the savings that you will make - bearing in mind that each plug works with one appliance? What particular appliance do you have in mind given that most appliances have a very low power standby load (e.g., an LED TV is 0,3W)
Your electricity cost is surprisingly low unless you are using an Economy 7 low tariff for your calculations.This is a system account and does not represent a real person. To contact the Forum Team email forumteam@moneysavingexpert.com0 -
Forgive me but surely the calculation that you need to work out is the cost of the plug compared to the savings that you will make - bearing in mind that each plug works with one appliance? What particular appliance do you have in mind given that most appliances have a very low power standby load (e.g., an LED TV is 0,3W)
Your electricity cost is surprisingly low unless you are using an Economy 7 low tariff for your calculations.
Well it is to turn a extractor fan off after 30 minutes , so i don't have to remember
I have a low energy cost but my standing charge is 30p a day0 -
AdventureRocks wrote: »Well it is to turn a extractor fan off after 30 minutes , so i don't have to remember
I have a low energy cost but my standing charge is 30p a day
Are you sure that you are not using the gas price for your calculation? What supplier/tariff are you on? I am paying 26p per day stdg charge and 10.99p per unit and it is one of the top fixes on the market today.This is a system account and does not represent a real person. To contact the Forum Team email forumteam@moneysavingexpert.com0 -
AdventureRocks wrote: »Hi,
I am looking at buying a countdown plug which turns off the appliance after 30 minutes.
The plug in standby uses 0.3w
My energy cost is 4.1777p per kwh
This is my calculation 4.1777 / 1000 = 0.0041777 per watt
0.3 * 8760 hour in the year = 2628 watss
2628 w * 0.0041777 = 10.97pence per year?
Thank you
Where do you get energy(electricity) for 4.1777p per kWh? Indeed what company quotes electricity prices to 4 decimal places?
How do you measure that the plug in standby uses 0.3w?
If the appliance did use a constant 0.3w(24/7) then it would use 2.628kWh a year. I doubt if you pay less than 10p/kWh (in UK) so you need to multiply the cost of a kWh by 2.628. e.g 2.628 x 10p =26.28pence0 -
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