This is how to interpret a British Gas gas bill.

Your gas meter measures cubic metres of gas flowing through it. (The old ones used to measure cubic feet; but the gas companies switched to proper measurements longer ago than the lifetime of a gas meter, so they should all be cubic metres by now.) But your bill is calculated on the number of kilowatt-hours of energy liberated from the gas.

On your bill, there will be a calculation such as this:

metric units used239* calorific value39.3572* volume correction1.0226400/ convert to kWh3.6= gas used in kWh2448.43

So what do the figures mean?

**metric units used**is the number of cubic metres of gas measured by your meter.**calorific value**is the number of megajoules of energy in a cubic metre of gas, at some specified combination of temperature and pressure.**volume correction**is a “fiddle factor” to account for seasonal variations in air pressure and temperature. When it’s cold, the molecules are more densely packed, so you get more energy in the same space. When the atmospheric pressure is low, the gas molecules are free to jiggle about more, so you get less energy in the same space. Each molecule contains a certain amount of potential energy stored in the bonds between atoms. So the calorific value depends on pressure and temperature, which is why this calculation is required.**conversion to kWh**is because there are 3.6 megajoules in a kilowatt-hour. (A watt is one joule per second; there are 3600 seconds in an hour. Kilo means * 1 000 and mega means * 1 000 000.)

Given these figures, you can work out how many kWh are in one cubic metre of gas, simply by doing the same calculation for **1** metric unit used. According to the above, it is **11.23 kWh per m³**; but this figure may well be different for you, as the volume correction is seasonally-dependent.

But that’s not the whole story. The price per kWh depends on how many units you have used, with the first few kWh each day being more expensive. There will be a section like this:

2448.43kWh used over103days

First756.00kWh @ 6.846p = £51.76

Next 1692.43 kWh @ 3.275p = £55.43

Total cost of gas used = £107.19

The higher rate applies to 756.00 kWh over 103 days, and adds an extra cost of 3.571p per kWh. As long as we actually use up all the “expensive” kWh, we will end up paying a fixed extra amount each week. If we are allowed 756.00 kWh in 103 days, then that is equivalent to 756.00 * 7 / 103 = 51.38 kWh in 7 days; which will cost us an extra 51.38 * 3.571p = £1.83 on top of what they would have cost if we had only been paying 3.275p for them.

Meanwhile, one cubic metre of gas on the meter gives us 11.23 kWh and so costs us 36.78p. So, our weekly bill will be equal to £1.83 plus 37p for each m³ of gas used.

Simples!

If you ask your gas supplier nicely they will send you a payment card, which can be used at local shops to make payments towards your gas bill. All you need to do is to work out the cost of the gas you have used each week (basing it on the figures from your last bill, which probably won’t be the same as mine), and round it up or down to the nearest whole pound.

I found this article useful in a paper I am writing at university. Hopefully, I get an A+ now!

Thanks

Bernice Franklin

I knew they were teaching some Mickey-Mouse subjects at university these days, but — if you’ll pardon the French — **** me sideways if that doesn’t put the icing on the dog ****.

I sincerely hope that the honest taxpayer is not to be expected to fund your degree course in

how to pay a sodding gas bill.Hello I would love to know where you got this site template from I love it!

It was the default template on the first version of WordPress that I installed, when I started the blog. Search the archives here and at the WordPress site, correlate the dates, and there you go.

Anyway, back to the topic. Are you any better able to understand how your gas bill is worked out? Have you actually got anything sensible to say about gas bills or anything?

“How come in Photoshop my cursor turns into a hand and i cant do anything?

Read the printed manual that was supplied with your paid-up copy of Adobe Photoshop, or call the helpline on the number in the Quick Start Guide.

(If you are using a pirate copy of Photoshop: Get lost, you filthy pikey.)

I enjoyed seeing this, like your blog layout too. Must be Joomla?

Hi webmaster, commenters and everybody else !!! Do you accept advertisers?

No we don’t, as a rule. Although we sometimes like to tear an advertiser a new backside, and guess what? It’s your turn today.

Now, if you have nothing to contribute to this discussion, kindly **** off.

If you do not mind me asking, what exactly are you using to stop spam responses? I noticed your site is nice and free from all the spam bots leaving comments. I have got another website myself, and I like to keep comment forms open so I do not have to come on and approve them all the time, however the spam plugins I’ve tried using are generally failing to prevent even the most obvious and basic spam comments. Is there anything decent out there that does a good job or is my only hope to keep them moderated or just simply close them all together? Thanks

I moderate manually; and just occasionally, I let a comment through so I can rip it to shreds for fun. Of course, I strip out the links before doing this.