How much am I saving?

Nov 21, 2013 35 Replies

My nephew is currently living at my house. Every weekday morning he goes off to work just before 8am and I take a quick look in his room and always I have to unplug from the wall socket as yet again he has left everything on. If I didn't check they would've stayed on until he got home around 4pm. So here comes the list of electrical items left on; can you give me a rough idea how much I'm saving by turning them off.


40" plasma tv (on standby) BT Vision box BT home hub router Xbox 360 electric blanket.

At a rough guess, and assuming he's not actually leaving the electric blanket on - because that WOULD be mind-bendingly stupid - then somewhere in the region of bollock-all. A handful of pennies per day.

A quick google suggests the TV's probably about 1w in standby, the BT vision box about 25w, the router about 9w (and powering it off will prevent it optimising the broadband speed), and the XBox 2.5w in standby.

So, together, less than 40w. So 1kWh/day. Probably about 10-15p per day, depending on your tariff.

Certainly nowhere near enough to warrant spending a tenner on an energy monitor so that you can give him the riot act with any credibility. Consider also the effect on the relationship between you, since you'd be admitting to snooping around his room as soon as he's out in a morning...

< 3W

With a purple LED (standby mode - able to make scheduled recordings) about 12W

Red LED (power down state) BT home hub router

5W

~2.5W

0W (unless actually on)

So about 22.5W total. Over 8 hours, 180 Wh, or 1 kWh roughly every 5.5 days. So you are saving about 12p per week.

On the down side, you will balls up any scheduled recordings or downloads that would have happened, and the frequent cycling of the home hub may well result in the DSLAM adjusting the BRAS rate down due to frequent disconnections - so the broadband speed may be lower than it should.

Don't forget to factor in the wear on the socket that you keep unplugging from, and you might even fracture a cable if you move them often enough. (you would be better off just switching off the socket switch)

In message , Thumper writes

Plugged in, does not mean on, and despite what the media , some eco pressure group etc. would have us believe. Most modern kit uses very little power on standby.

As other shave pointed out, not a lot.

Do you really want to be seen as the grumpy/arsey/nosey uncle for a few pence?

A good forty or fifty pee a week I reckon. Well done.

It is possibly worth measuring the TV or looking it up in its manual.

Some older ones have lousy standby characteristics in the 20-30W region as they power the digital decoder continuously and very inefficiently. It may be possible to tell it not to do this but the original defaults on many older sets was to run the decoder so that the TVs SCART output could be used by old recorders that only had analogue TV decoders.

It might be worth encouraging him to have a smart extension block that powers down all other peripherals when they are not in use. Even at just

10p/day it pays for itself in about 8 months. YMMV

The electric blanket would've only been on overnight on really cold nights. So not every night.

He's on BT Infinity, so the broadband speeds not going to be affected.

I've just changed. Was on EDF Blue plus, now with First Utilities fixed until 2015. Saving £89 per year apparently.

The electric blanket would've only been on overnight on really cold nights. So not every night.

He's on BT Infinity, so the broadband speeds not going to be affected.

I've just changed. Was on EDF Blue plus, now with First Utilities fixed until 2015. Saving £89 per year apparently.

If there was a switch I'd be using it :-)

Is the BT router connected to its own phone line?

Even at 10p/day it's worth turning off. (= 36.50/year)

Also there is the reduced fire risk to consider. Many fires are started by damaged flexes.

Its a blue light on the BT Vision box.

Its a blue light on the BT Vision box.

Its a blue light on the BT Vision box.

Its connected to the BT phone line.

From what I read, they suggest that the LED can be blue which means its "on" (drawing about 17W producing a video output etc), Purple is the first level of standby (12W - ready to record etc but no video out), and Red is the second level of standby being "off" (or very nearly!)

I take it you meant, per day

I take it you meant, per day

Whilst on the subject of saving, He is typical young person that thinks wearing any item of clothing once is enough for it to need washing. So he puts a full load in the washing machine at least twice a week.

When he operates the machine, he sets it on "mixed load 40^" which takes 1 hour 10 minutes. If he asks me to do his washing, then I put it on "super quick wash 30^" which takes 15 minutes. How much is that saving me.

I take it you dont do sums?

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