# Re: [Dorset] OT: Keeping costs down

`Terry, I only received one message, as you can see timestamped 9:51`
```
I did wonder if a smart meter could give you a reading on that, but acknowledge
that electricity usage is continuously fluctuating, so unlikely.

I might have to borrow my neighbour's in-line device and test the kettle/
microwave.

Peter

On 29/08/2022 09:51, Terry Coles wrote:
```
```
On 29/08/2022 09:33, Peter Merchant wrote:
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```I was curious, so I took the water from the kettle and put it in a pot on the
stove. It was very close to 500ml.

Watching the gas meter while it boiled it used 0.014 m(cubed) of gas, which
converted to 0.15788Kwh and at my current rate of 7.123p/Kwh cost me 1.1.25p to
boil up.

Unfortunately I can't see my electricity meter easily to see what it costs me
to boil that amount in the kettle or by Microwave. Does anybody have that
facility?  And also there is always other electricity being used.
```
```
Peter,

I have a SMART Meter with associated In-Home Display (IHD) which is telling me
that my current electricity consumption is 85W, however, it is continuously
varying between ~25 W and ~220 W. Presumably, I could see how much the
consumption increases when I boil the kettle but I would then have to calculate
the total consumption against minutes and convert it to KWh and even then the
result would be a bit iffy.

You can get gadgets that measure the electricity consumption at the 'incomer'
(at the meters).  ( I have one which I use to measure the amount of juice being
generated by my solar Panels) and you can also get ones that do the same for a
single socket. If anyone has such a beast, then I think that the most accurate
result could be obtained that way.

Of course if we know the efficiency of the kettle we could calculate it!

```
```

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