Helping you to understand your British Gas bill - Which.co.uk

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I'd like more detail
What am I paying for?
Total kWh used 8085.82
Total gas kWh used 7367.82
Total electricity kWh used 718.00
What's a kilowatt hour?
A kilowatt hour gives you:
A cooked breakfast
Food kept fresh
or
for a family of four
and frozen for a day
Your gas use in detail
Meter number: 827
Your electricity use in detail
Meter number: Z10SP16551
10 Oct 2012 - we read your meter 06852
15 Nov 2012 - estimated meter reading 07119
Estimated kWh used over 37 days 267.00
Cost of first 73 kWh used at 23.643p £17.26
Cost of next 194 kWh used at 11.031p £21.40
Cost of electricity used this period £38.66
16 Nov 2012 - estimated meter reading at 07119
price change
9 Jan 2013 - we read your meter 07570
Actual kWh used over 55 days 451.00
Cost of first 108 kWh used at 21.057p £22.74
Cost of next 343 kWh used at 12.850p £44.08
Cost of electricity used this period £66.82
Gas unit rates on
your current tariff
10 Oct 2012 - we read your meter 3007
15 Nov 2012 - estimated meter reading 3083
Estimated units used over 37 days 76
(Unit calorific value for this period 39.00)
Gas units converted into kWh 2382.78
Cost of first 272.00 kWh used at 8.431p £22.93
Cost of next 2110.78 kWh used at 3.936p £83.08
Cost of gas used this period £106.01
16 Nov 2012 - estimated meter reading at 3083
price change
9 Jan 2013 - we read your meter 3242
Actual units used over 55 days 159
(Unit calorific value for this period 39.00)
Gas units converted into kWh 4985.04
Cost of first 404.00 kWh used at 7.786p £31.46
Cost of next 4581.04 kWh used at 4.414p £202.21
Cost of gas used this period £233.67
Total gas used £339.68
Direct Debit discount -£12.52
VAT at 5.00% £16.35
Total gas including VAT £343.51
Total electricity used £105.48
Dual Fuel discount
Direct Debit discount
-£3.60
-£9.58
VAT at 5.00% £4.61
Total electricity including VAT £96.91
Total without VAT £419.46
Total VAT £20.96
Electricity unit rates
on your current tariff
Total = £440.42
Gas is a natural product. One unit does not always
produce exactly the same amount of energy. In order to
price energy from gas consistently, we convert your
units used into kilowatt hours of energy, using the
following formula:
a. imperial units used See detail
b. x metric conversion 2.83
c. x calorific value See detail
d. x volume correction 1.0226400
e. ÷ metric conversion 3.6
f. = kWh See detail
Why your payments are less
We're reducing your payments because the amount
of energy you're using has changed since our original
forecast. We'll carry your balance forward to your
annual review. If we've a recent meter reading and
you're more than £100 in credit at your annual review
we'll automatically refund you.