Electricity consumption

[collinsc]

Hi

I wonder... What is the impact on energy consumption of unplugging a device, such as a kettle/microwave as opposed to leaving it plugged in but not using it!?

Thanks

 

[Spark123]

For a bog standard kettle it won't make any difference.
For items such as microwaves it will make a small difference as they require power to drive the clock etc.

 

[RF Lighting]

Get your self a plug in energy meter and experiment with your various appliances. You might be suprised!

http://www.amazon.co.uk/Plug-Power-Energy-Monitor-Meter/dp/B000Q7PJGW

Other retailers are available, don't run with scissors etc.

 

[ericmark]

My daughter got one of these energy meters and then realised she didn't know what to expect so I borrowed it to get some comparisons and as already said got some surprising results. Fridge / Freezer was 2.1Kw but kettle did not even reach the lowest reading.

Before using the meter I had seen the 1W directive for items on standby and was surprised to see an LNB takes 6W so although the sky box is only 1W on standby to allow it all to upgrade over night is a lot more but even at 10W over 24h still only 240Wh so would take 10 hours to register on meter.

 

[BS3036]

but kettle did not even reach the lowest reading.

Was that with the kettle on standby then?

 

[big-all]

got some surprising results. Fridge / Freezer was 2.1Kw but kettle did not even reach the lowest reading.

i doubt very much your fridge was on 2.1kw your fridge is more likley to be 120-250w in that sort off range
although i do belive frost free have a heating element for the 2 or three times a year they auto defrost
a more likley hourly consumption is about 20-50w dependand on temperature inside and out and how often the door is opened or shut as it only cools intermitantly for a few mins at a time

standby is when theres circutry powered up to allow part off the equipment to respond when the main functions are not required most usual is to respond to the remote control if it dosnt have a remote control or secondery funtions whilst switched off you wont get any power consumption[egnoring any red lights or neons or time displays]

so your toaster 'fridge 'iron'cooker'microwave'washing machine 'tumble drier'kettle are either off or working power consumption

there may be a small consumption for the micro or cooker clocks/washing machine display ect but would expect it to be around 1w

i measured several tvs/videos/digi boxes 12 in total and the best on standby was 1w the worst was around 31w or 38% power on standby and 82w full power the average was around 14% on standby at around 10w per appliance

 

[Steve]

i doubt very much your fridge was on 2.1kw your fridge is more likley to be 120-250w in that sort off range
although i do belive frost free have a heating element for the 2 or three times a year they auto defrost

More likely 24 hourly on a modern fridge freezer.

And you never know he might have a

 

[BS3036]

Was that with the kettle on standby then?

standby is when theres circutry powered up to allow part off the equipment to respond when the main functions are not required most usual is to respond to the remote control if it dosnt have a remote control or secondery funtions whilst switched off you wont get any power consumption[egnoring any red lights or neons or time displays]

so your toaster 'fridge 'iron'cooker'microwave'washing machine 'tumble drier'kettle are either off or working power consumption

Remind me not to use sarcasm again.

 

[big-all]

sorry BS3036 absolutly not aimed at your remark --that made me laugh
its aimed at the people who dont understand its the electronics/ behind the red light that use the power not the red light/ clock

 

[collinsc]

Thanks all