calculating cost of electricity

[rizbit]

I have an electronic appliance which states its power consumption is 6W.

Is there a known way to calculate the daily/monthly cost of electricity required to run the appliance?

what is the average uk rate for electricity?


PS: I know the cost of electricity varies between suppliers, but would the cost of electricity be different between a house and a shop on the same street provided by the same supplier. for example say there was a house next to a take away on the same street.

 

[richardmk]

I think electricity costs are around 12p per kWh.

An appliance of 6W would be 0.006 kWh

So the daily cost would be 12 x 0.006 x 24 = 1.728p

The monthly cost would be 12 x 0.006 x 24 x 30 = 51.84p

That is of course assuming the appliance is on for 24 hours a day.

The cost in kWh may vary between providers and depending upon how you pay - direct debit etc. Some business tariffs will probably offer savings compared to domestic tariffs.

 

[NUCB]

I have an electronic appliance which states its power consumption is 6W.

Is there a known way to calculate the daily/monthly cost of electricity required to run the appliance?

what is the average uk rate for electricity?


PS: I know the cost of electricity varies between suppliers, but would the cost of electricity be different between a house and a shop on the same street provided by the same supplier. for example say there was a house next to a take away on the same street.

Hello mate,

Well electricity bills are measured using KWh, which are 1000 watts per hour. So if you use your "electronic appliance" for 10 hours a day over a 30 day month, then the amounts of units (KWh) used are:

Unit (KWh's) = (6 x 10 x 30)/1000 = 1.8 KWh

Commercial energy is in and around 9p per unit (per KWh).

Costs of domestic and commercial energy can vary massively. Commercial energy is negotiated on a consumption basis. However the residential market is a lot more straight forward, and only regional variations occur depending on the tariff.

I hope this helps

 

[Rhyl Lightworks]

The explanation of units of electricity, i.e. kWh, is as above.
An electronic appliance using 6W will take about 166 hrs to use 1 unit costing about 10 to 12p.

However, for the benefit of those that may be calculating the cost of running appliances using more power, the issue is complicated by the fact that some appliances (e.g. some heaters, if they have a thermostat, all fridges, all freezers, devices with humidistats, timers, and other things) turn on and off automatically, and will only use their rated power consumption when they are on. Other things like washing machines, dishwashers, etc. only use the maximum rated power when the heater is on. At other times they will only use a small fraction of this power.

Barrie

 

[rizbit]

Hello mate,

Well electricity bills are measured using KWh, which are 1000 watts per hour. So if you use your "electronic appliance" for 10 hours a day over a 30 day month, then the amounts of units (KWh) used are:

Unit (KWh's) = (6 x 10 x 30)/1000 = 1.8 KWh

Commercial energy is in and around 9p per unit (per KWh).

Costs of domestic and commercial energy can vary massively. Commercial energy is negotiated on a consumption basis. However the residential market is a lot more straight forward, and only regional variations occur depending on the tariff.

I hope this helps

so if i used this appliance on a typical commercial premise being charged 10p per unit for 8 hours a day. for a whole year what would be the yearly (approximate) billing for this applicance alone?

from your calculation it use 1.8kWh in one month
therefore in a month it would cost 18pence?

 

[silklink]

Unit (KWh's) = (6W x 8Hrs x 365Days)/1000 = 17.52KWh

You can do the rest me thinks

 

[silklink]

Actually, I'm curious. What appliance do you have that runs on just 6W?

 

[Shaun_Pearce]

Hello mate,

Well electricity bills are measured using KWh, which are 1000 watts per hour. So if you use your "electronic appliance" for 10 hours a day over a 30 day month, then the amounts of units (KWh) used are:

Unit (KWh's) = (6 x 10 x 30)/1000 = 1.8 KWh

Commercial energy is in and around 9p per unit (per KWh).

Costs of domestic and commercial energy can vary massively. Commercial energy is negotiated on a consumption basis. However the residential market is a lot more straight forward, and only regional variations occur depending on the tariff.

I hope this helps

Being a competitor to this person I would have liked to have provided you with a more detailed answer but I think If we were to go in to supplier specifications in regards to the 9p per unit (per KWh) we would be evading the actual answer you was looking for.

What has been mentioned here by NUCB is on the money.

 

[rizbit]

Unit (KWh's) = (6W x 8Hrs x 365Days)/1000 = 17.52KWh

You can do the rest me thinks

that works out to be about 175 pence based on a rate of 10p per unit (KWH)

so thats £1.75 for a whole year is that really true? I just expected it to be about £25 but then again this is the first time im doing this kind of calculating so my initial estimate wouldmost definitely be out.

 

[silklink]

Which is why I asked about the '6W'. If it were a normal 60W bulb then it would cost £17.50

 

[UKSEOAgency]

so let me get this right:

if i had a pc running 24/7, using a maximum of 365 watts of power

Unit (KWh's) = (365W x 24Hrs x 365Days)/1000 = 3197.4KWh per annum

at an estimated cost of 10p per kwh thats 319.74 per annum to run the computer?

 

[Rhyl Lightworks]

so let me get this right:

if i had a pc running 24/7, using a maximum of 365 watts of power

Unit (KWh's) = (365W x 24Hrs x 365Days)/1000 = 3197.4KWh per annum

at an estimated cost of 10p per kwh thats 319.74 per annum to run the computer?

Correct

Barrie

 

[rizbit]

a small gadget thats all, i appreciate your help.

no one answered the second bit of thje question...

 

[silklink]

so let me get this right:

if i had a pc running 24/7, using a maximum of 365 watts of power

Unit (KWh's) = (365W x 24Hrs x 365Days)/1000 = 3197.4KWh per annum

at an estimated cost of 10p per kwh thats 319.74 per annum to run the computer?

Correct f it runs at constant 365W. PCs tend to have power saving features, plus there is the running cost of the screen as well, so it gets complicated

 

[NUCB]

a small gadget thats all, i appreciate your help.

no one answered the second bit of thje question...

Hi Rafhelp,

The cost of electricity can vary massively regardless of residential/commercial supply.

I have observed some businesses paying nearly 29p per unit for electricity (obviously I moved them onto a cheaper rate ASAP around 9p), while I have clients currently paying 5p per unit from old contracts.

I would like to stress that prices vary. I think stats show that nearly 40% of residences and businesses are paying far too much for energy.

 

[Danny Zedeela]

what is the average uk rate for electricity?


PS: I know the cost of electricity varies between suppliers, but would the cost of electricity be different between a house and a shop on the same street provided by the same supplier. for example say there was a house next to a take away on the same street.

You can compare the price you're paying for business electricity with others in the same postcode using the 'Price Checker' tool on the Make It Cheaper website at makeitcheaper.com