gas price

[ggman]

Hi just a quick question: Why is the price of the gas in England billed in Kwh? surely would be easier to billed it how is read on the meter nowadays mean cubic meters, instead of making calculation related to calorific value of different stock of gas.
I think myself that system it is not for the consumer benefit, but to squeeze us even from the last penny.
Best Regards
ggman

 

[kirkgas]

Hi just a quick question: Why is the price of the gas in England billed in Kwh? surely would be easier to billed it how is read on the meter nowadays mean cubic meters, instead of making calculation related to calorific value of different stock of gas.
I think myself that system it is not for the consumer benefit, but to squeeze us even from the last penny.
Best Regards
ggman

It's probably just for comparison
What difference does it make how it's calculated? It's still based on the CV and it's expensive
We pay £148 per month for gas and electric, scottish power emailed me to say it's going up to £225 per month, I emailed them back and said "eh naw it isnae" and have changed via uswitch comparison website and have got it for £120 per month

 

[tamz]

Gas has been charged in kw/h since the early 90's
That way you are paying for the amount of heat energy used. As gas is supplied with different calorific values in different parts of the country they need to be able to work out how much heat energy you have used from the supplied gas.
Say in one part of the country the gas has a cv of 38 and you have used 100m3
The amount of energy is 100 x 38 / 3.6 = 1055kw/h
If you lived in another part of the country where the cv was 39 it would be 100 x 39 / 3.6 = 1083kw/h so you would be billed a few quid more.

There is also the correction factor to add which is for changes in atmospheric pressure which is where the scrape in an extra couple of quid.

On the bright side if you have an outside meter due to the changes in temperature between inside and out you will gain a bit "free gas" due to the rise in temperature when it enters the building.
You can work it out using charles law but basically if the temperature outside is say 5º and the temperature inside is 20º for every m3 of gas
V1/T1 = V2/T2 therefore V2 = V1xT2/T1
V2 = 1 x 293(temp in kelvin) = 293/278 = 1.05m3 so you gain 5% volume of gas in the warmer room.
Its all theory of course :wink:

 

[snowhead]

Its all theory of course :wink:

Bit like the theory about filling up with petrol / diesel on a cold morning gets you more fuel.

For every cold day there's a warm day.

 

[tamz]

For every cold day there's a warm day.

Exactly :lol:

 

[ggman]

Gas has been charged in kw/h since the early 90's
That way you are paying for the amount of heat energy used. As gas is supplied with different calorific values in different parts of the country they need to be able to work out how much heat energy you have used from the supplied gas.
Say in one part of the country the gas has a cv of 38 and you have used 100m3
The amount of energy is 100 x 38 / 3.6 = 1055kw/h
If you lived in another part of the country where the cv was 39 it would be 100 x 39 / 3.6 = 1083kw/h so you would be billed a few quid more.

There is also the correction factor to add which is for changes in atmospheric pressure which is where the scrape in an extra couple of quid.

On the bright side if you have an outside meter due to the changes in temperature between inside and out you will gain a bit "free gas" due to the rise in temperature when it enters the building.
You can work it out using charles law but basically if the temperature outside is say 5º and the temperature inside is 20º for every m3 of gas
V1/T1 = V2/T2 therefore V2 = V1xT2/T1
V2 = 1 x 293(temp in kelvin) = 293/278 = 1.05m3 so you gain 5% volume of gas in the warmer room.
Its all theory of course :wink:

tamz, thank you for your comprehensive explanation, but my point of view is that when the suppliers buy the gas in the open market surely the purchase is in bulk and in volume, so the few quid (important in these days) could be hours if the gas was sold to us in volume.
I think this is another scam from the suppliers and as you said before this practice started in the 90,s when the privatization took place, now we are facing all the consequences of it, with an incompetent, impotent government. I already purchased lot of new jumpers.
Regards
ggman

 

[Killy Bing]

tamz, thank you for your comprehensive explanation, but my point of view is that when the suppliers buy the gas in the open market surely the purchase is in bulk and in volume, so the few quid (important in these days) could be hours if the gas was sold to us in volume.
I think this is another scam from the suppliers and as you said before this practice started in the 90,s when the privatization took place, now we are facing all the consequences of it, with an incompetent, impotent government. I already purchased lot of new jumpers.
Regards
ggman

im sure you could also buy the natural gas in bulk, say if you spents a few million building a facility to drop the temperature down and pressurise it into a liquid to store it.....and paid for a team of engineers to maintain it at all times?

the suppliers have to maintain the gas network and that includes the meters, pipework, inspecting and testing, the facilitys, the pipelines into the country and such.

i think you get alot for your money with natural gas....
cheaper than other fuels and on demand.


you could always switch to lpg, or oil and have huge bulk stores?
still no matter how much you brought in bulk it would still cost more than natural gas!!

 

[kirkgas]

Gas has been charged in kw/h since the early 90's
That way you are paying for the amount of heat energy used. As gas is supplied with different calorific values in different parts of the country they need to be able to work out how much heat energy you have used from the supplied gas.
Say in one part of the country the gas has a cv of 38 and you have used 100m3
The amount of energy is 100 x 38 / 3.6 = 1055kw/h
If you lived in another part of the country where the cv was 39 it would be 100 x 39 / 3.6 = 1083kw/h so you would be billed a few quid more.

There is also the correction factor to add which is for changes in atmospheric pressure which is where the scrape in an extra couple of quid.

On the bright side if you have an outside meter due to the changes in temperature between inside and out you will gain a bit "free gas" due to the rise in temperature when it enters the building.
You can work it out using charles law but basically if the temperature outside is say 5º and the temperature inside is 20º for every m3 of gas
V1/T1 = V2/T2 therefore V2 = V1xT2/T1
V2 = 1 x 293(temp in kelvin) = 293/278 = 1.05m3 so you gain 5% volume of gas in the warmer room.
Its all theory of course :wink:

Just to add to tamz brilliant post,
If your meter is imperial and reads in ft3 then the calculation is

Ft3 used x 2.83 x CV (39.24) x correction factor (1.022640) / 3.6

OR

M3 used x CV (39.24) x correction factor (1.022640) / 3.6