Efergy wireless energy monitor £44.99 + £2.50 P&P

**emmajk42**

Think it's £47.49 with delivery?

erics

I like the way you can rent one for 30 days for £14.99, with an option to buy for £34.99 if you then decide to keep the unit. Within the 30days you should be able to get a feel for where you can make savings.

http://www.electricity-monitor.com/e...ental-p-7.html

stora

emmajk42:
Think it's £47.49 with delivery?

I have corrected the P&P now.
Thanks

splender · *Last edited by splender : 05-09-2007 at 21:14.*

You can achieve what you need by spending about £12 to £13 on eBAY on this, or you buy from Maplin for about £15 (on sale now) was nearly £30 and it is so easy to use .http://www.maplin.co.uk/images/Full/l61aq_withplug.jpg

What you will find that you will only take a day or two to check out the usage of power on all your appliances thereafter you only need the monitor plug to double check as reminder and to monitor new appliances. This kind of monitoring helped tme to save about £30 in electricity a year ( calculated on about 10 pence saving per kilowatt hour). I discovered quite a few appliance, especially PCs, even though that they are switched off consumed a few watts electricity, the power switch in the back of the PC (near to the power supply unit) had to be switched off to cut the electricity consumption to zero.

This simple to use unit will add up the kilowatt hours used since plugged in and then you just multiply by 10p to give you the savings! So simple. After I loggged all the electricity consumption of my appliances the monitor plug is effectively left idle ! So it is a waste of money to spend £50 on a more gimmicky device. You can read up all about this unit as shown on http://www.maplin.co.uk/Module.aspx?...ONITOR&doy=5m9

stora

Taken from a priviose thread

:
I've got fifteen years experience in the electricity industry and have seen all the tricks, believe me.

The maplin thing looks ok, but limited. If anyone is serious about analysing their usage, then i've had this thing recommended to me by more than one person. www.electrisave.co.uk ok it's £80, but it tells you real-time consumption in pence per hour, and it reacts immediately when you switch appliances on and off. if you're willing and able to reduce consumption and bills then this will give you the info and the spur.

Not used one and have no connection with the company, but just for info.

http://www.hotukdeals.com/forums/sho...8&postcount=26

splender · *Last edited by splender : 05-09-2007 at 21:50.*

That more expensive device is very useful if you want to charge people for what electricity they use. However the cheaper device reads off the watts immediately as indeed the kilowatt hour too. I had used this unit with many appliance with written rated watts consumption on the appliance documentation and the monitor is accurate on the reading. Also it is simple to understand that 1000 watts appliance will cost about 10p to run an hour. For example, after a while you read that the appliance has used up 0.5 kwatts hr then it is 5 penece used! Also this £15 unit will tell you immediately how many watts is consumed by a piece of equipment on standby or idle so you know to switch it off. However even with this cheaper £15 unit don't leave it on as it uses up to 20 watts which means the unit itself will use up to £17.50 electricity a year! Specs are :-

Function Range Accuracy TypicalMax
RMS Voltage 180-250V rms 0.2% 1%
RMS Current 0-15.00A rms 0.3% 1%
Active Power 0-3750W 0.5% 2%
Line Frequency 47.0-63.0 Hz 0.1Hz 2%
Power Factor 0.00-1.00 0.01 0.03
Power Consumption 20W max

erics

splender:
You can achieve what you need by spending about £12 to £13 on eBAY on this, or you buy from Maplin for about £15 (on sale now) was nearly £30 and it is so easy to use .http://www.maplin.co.uk/images/Full/l61aq_withplug.jpg

I've been tempted by one of those, but I think it is a bit limited if you really want to see what is going on.

For instance, how is that device going to measure how efficient or not your cooker i? How about the effect of turning on/off lights?

How about integrated appliance like dishwashers, fridges/freezers, etc which are either wired on or the plug is behind the device and not easily accessible?

The maplin device is okay if you want to measure the electricity usage of a limited range of appliances, but that is only going to tell you half the story, especially in my house were people find it almost impossible to turn a light off after leaving a room!

RufusA

Just to add to this thread, I ordered this meter a couple of weeks ago and have been very happy with it.

What is particularly nice about this over and above the Electisave is that it holds total daily usage, so you can easily see how much you've saved.

If nothing else it's got me thinking, I now use more mood lighting rather than high energy spots in the living room at night. I now remember to switch the kitchen lights off. I don't feel so guilty about leaving my mobile phone charger plugged in (it doesn't even register on the meter).

I also know the "resting" electricity consumption of the house, so as I'm leaving I can check at one glance if anything is left switched on that shouldn't be.

Price wise I only paid £41 for mine delivered from REUK. However they now have VERY limited stock, so to avoid disappointment you may be better off ordering from the ethical superstore which is a pound more, if you use the £5 off code "X5WFF"

http://www.reuk.co.uk/Efergy-homeCO2meter.htm
and
http://www.ethicalsuperstore.com/pro...-saving-meter/

There are also reviews on the REUK site. For me it's been like owning a PVR, one of those gadgets that really changes your behaviour!

Rufus.

stora

I've taken the plunge and ordered one. With two teenagers and 3 PC's that are switched on until the early hours, I'm sure I'll be able to cut my carbon footprint down

splender

erics:
I've been tempted by one of those, but I think it is a bit limited if you really want to see what is going on.

For instance, how is that device going to measure how efficient or not your cooker i? How about the effect of turning on/off lights?

How about integrated appliance like dishwashers, fridges/freezers, etc which are either wired on or the plug is behind the device and not easily accessible?

The maplin device is okay if you want to measure the electricity usage of a limited range of appliances, but that is only going to tell you half the story, especially in my house were people find it almost impossible to turn a light off after leaving a room!

I am afraid no electricity monitoring gadget will turn off a light. In reality you don't even need any thing to tell you how much an electric light bulb uses as you just read the wattage on the bulb, it is as simple as this. E.g. 100 Watt bulb will use 10 pence electricity in 10 hours since price of electricity is approximately 10p per kilowatt hour. As for appliances which don't have any wires or inaccessible, you can estimate for its energy consumption by, if you can, turn off all the appliances and read off the mains electric meter. In practice too, whether it is energy efficient or not you like unlikely to change to a new appliance for the sake of saving £10 -£20 per year electricity bill.

erics

splender:
I am afraid no electricity monitoring gadget will turn off a light. In reality you don't even need any thing to tell you how much an electric light bulb uses as you just read the wattage on the bulb, it is as simple as this. E.g. 100 Watt bulb will use 10 pence electricity in 10 hours since price of electricity is approximately 10p per kilowatt hour. As for appliances which don't have any wires or inaccessible, you can estimate for its energy consumption by, if you can, turn off all the appliances and read off the mains electric meter. In practice too, whether it is energy efficient or not you like unlikely to change to a new appliance for the sake of saving £10 -£20 per year electricity bill.

Obviously you don't NEED a meter to tell you how much electricity items use, but it is a whole lot EASIER if you have one.

I suspect these things DO actually help you to turn a light off as it becomes a bit of a game to reduce wastage and you can visually see the effect it has had.

If I show the kids a piece of paper showing how the consumption has gone down by:

switching the lights off after them,
leaving the TV/DVD player running while they have gone off to play in the garden,
holding the freezer door open for ten minutes while they decide between a vanilla and strawberry ice pop, and
the wife forgetting to turn the oven off after the food has finished cooking
etc

they are likely to go "oh!" and take no notice. But I can see these things make it a bit of a game to keep the numbers down, which can't be a bad thing.

stora · *Last edited by stora : 11-09-2007 at 20:37.*

My Efergy monitor arrived today. It took less than 5 minutes to set up.
Apparently I'm using 1.66 kwh this evening, is that good bad or average?

renegade_si

that 1.66kWh over what period? If it were 1.6kW at any point then you are above average. Average for this time of year is almost exactly 1KW across the evening peak (around 8pm at the moment as people turn on lights)
Go look at www.bmreports.com if youre really interested in looking as to what you are vs the national figure (as this shows the national demand forecast).

Efergy wireless energy monitor £44.99 + £2.50 P&P

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