Electricity usage was 6kwh now 46kwh per day

[JohnW2]

An extra 40 or so kWh per day suggests something is drawing just under 2kW constantly.

Indeed, but that would amount to a constant 8A or so extra. However, it sounds as if the OP's clamp meter is probably giving reasonable readings, and he's not seeing anything like as high as that. Something is clearly wrong, and it seems unlikely that a constant ~2kw load could be overlooked for weeks. Is not a malfunctioning meter probably the most likely answer?

Kind Regards, John

 

[johno12345]

how many kwh would my 2.5a work out to over 24 hours?

 

[JohnW2]

how many kwh would my 2.5a work out to over 24 hours?

About 13.8 kWh, if it were a constant 2.5A - and even that would be quite high for an average domestic consumption.

Kind Regards, John

 

[johno12345]

the lady at my energy supplier hinted that 20kwh a day is normal for a household. i have a 2 bed bungalow with gas heating and water

the dishwasher and washer dryer are all A rated for energy and we dont have outside lights on all night or anything

if the meter were faulty, would it be possible that its gradually gone out of calibration, or would it only go faulty all of a sudden?

im going to get one of those energy monitors to function as my own check meter

 

[JohnW2]

the lady at my energy supplier hinted that 20kwh a day is normal for a household. i have a 2 bed bungalow with gas heating and water

Ofgem quote an average electricity consumption of 3,300 kWh per year - about 9 kwh/day - click here to see

if the meter were faulty, would it be possible that its gradually gone out of calibration, or would it only go faulty all of a sudden?

I don't know - but others here will probably be able to tell you. I would have guessed that a sudden fault would be more likely.

Kind Regards, John

 

[johno12345]

thanks for that, im gonna see what the energy monitor thinks im using compared to the meter

our bill has always been expensive, and i had the meter changed shortly after we moved in because it was a noisy dual rate meter with timswitch

 

[RF Lighting]

Please be aware that your energy monitor is just an indicating device, and as it can not measure the supply voltage and a few other things, i will not give you a truly accurate reading.

Have you still not managed to gain access to your 4 way CU yet?

 

[pjcomp]

your energy monitor is just an indicating device ... it will not give you a truly accurate reading.

True, but it will give a near enough/good enough indicator if the divergence is as high as the OP says.

If the meter is recording throughput with everything switched off, either the meter has dveloped a life of its own or something is still running - is there any way someone could have tapped into your supply after the meter? What is fed by the other two circuit breakers in your 4-way once the 2 CUs in the loft have been taken care of?

PJ

 

[Maxatoria]

personally i'd get a switchfuse fitted between the meter and the initial CU so you can disconnect everything your side physically and see if the meter still counts up and if so you'll be able to prove it and get the bill reduced

 

[RF Lighting]

He might already have one, but we are still waiting to find out...

 

[johno12345]

I havent taken the cupboard down to look in the 4 way CU, but last time I looked, it was the same as when it was installed, the two 25mm tails go straight from the out side of the meter into the isolator in the CU

there is no separate isolator, cant see why I would need one when there is one in the first CU

its a 4 way CU, so it has the double pole isolator, and the two breakers for the sub CUs, there arent any other breakers or spare ways there.

if i had another isolator fitted, it would just duplicate the one 6" further up in the CU

this is a better picture, but has the old dual rate meter on it

you can see the 4 way CU, and also why a separate isolator would be fairly pointless.

Im looking for an energy monitor that measures voltage

 

[JohnD]

would you believe us if we said we were really anxious to see inside that CU?

how much money is this costing, and how concerned are you?

 

[johno12345]

its costing a lot, but i'm not particularly concerned about the internals of the CU, what do you think could be in there that is causing the meter to record usage with the clamp meter reading 0a on the outgoing phase?

I have a photo of the ones in the loft though

 

[Mursal]

Sorry I'm a bit slow,

You can measure a current flow into the CU, with the clamp meter (flowing out from your providers meter on the wall). But no current flowing out from the CU?

I must be missing something

Did Kirchhoff not spend a bit of time on this one? Stating that if a bit of current flowed into a point on a circuit, the same amount of current must from from that point?

http://www.physics.uoguelph.ca/tutorials/ohm/Q.ohm.KCL.html

Probably out of date

 

[johno12345]

Sorry I'm a bit slow,

You can measure a current flow into the CU, with the clamp meter(flowing out from your providers meter on the wall). But no current flowing out from the CU?

I must be missing something

Did Kirchhoff not spend a bit of time on this one? Stating that if a bit of current flowed into a point on a circuit, the same amount of current must from from the that point?

http://www.physics.uoguelph.ca/tutorials/ohm/Q.ohm.KCL.html

Probably out of date

no, whats happening is im measuring 0a on the outgoing phase from the meter, but the meter is still registering a load and clocking the display up. this is with the main switch for the house turned off