How much does it cost in pence to boil a household kettle?

Question

A cup of tea at Wembley stadium costs £2.50. Bearing in mind 40 teabags cost 95p, i'd like to know how much profit the FA and Wembley are making. Don't even get me started on the £10 Programmes.......

Answer 1

The electricity cost of an appliance can be calculated as follows:

W * H * R

W = watts of appliance
H = hours of consumption
R = electricity rate (how much you pay)

So let's say you had a 1000 watt kettle that took 5 minutes (5/60 of an hour) to boil the water and your electricity costs 9 pence per kilowatt hour, you would have:

1000 * 5/60 * .09 = 7.5 pence.

Of course that doesn't include the cost of the water, tea bag (2.4 p each), labour etc. - much less the profit!