Site Prices Update
Last Updated28th June 2022
All calculations on this site are based on current fuel prices, they are checked regularly and calculations are automatically updated.
The costs calculated based on these fuel prices should be regarded as 'good estimates', given that fuel prices vary in different parts of the county and at different time of the year.
The calculations also have different levels of accuracy depending on the nature of the calculation. For example calculating the energy use of a known power output TV is very easy compared to calculating the effect on energy savings when insulating a cavity wall.
Site Calculations
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User PricesFor several of the fuel prices on this site you can now set your own prices and all the calculations on the site will adjust accordingly.
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At Confused About Energy we aim to provide practical, impartial advice on all aspects of energy usage, climate change and ways to save money on energy bills.
All calculations on this site are based on current fuel prices they are checked regularly are automatically updated and were last changed on:-
28th June 2022
The costs calculated based on these fuel prices should be regarded as 'good estimates', given that fuel prices vary in different parts of the county and at different time of the year.
The calculations also have different levels of accuracy depending on the nature of the calculation. For example calculating the energy use of a known power output TV is very easy compared to calculating the effect on energy savings when insulating a cavity wall.
Site Calculations
| Electricity | £0.271 per unit (1 kWh) |
| Economy Electricity | £0.094 per unit (1 kWh) |
| Gas | £0.072 per unit (1 kWh) |
| Domestic LPG | £0.122 per unit (1 kWh) |
| Heating Oil | £0.104 per unit (1 kWh) |
| UK Grid CO2 Emissions | 0.233 kg per kWh used |
The main units used in this site are in the table below, For a complete explanation of power and energy Read More.
| Unit | Name | Detail |
|---|---|---|
| W | Watt | Unit of Power |
| kW | Kilowatt | 1000 watts |
| kWh | Kilowatt hour | Measure of Energy |
| L | Litre | Measure of Volume |
Please use twitter to ask a question Message @@EnergyThinking
How much does it cost to run a washing Machine?
Washer dryers are regarded as a separate category on the energy efficiency scale to ordinary washers and so an A rated washer dryer cannot be compared with an A rated washing machine. The energy consumption figures are based on a full wash and dry cycle with a maximum load. The table below shows the costs of using the wash cycle only or the full wash and dry cycle on a typical washer dryer machine.
| Cost per wash cycle (Carbon Dioxide Emissions) |
Cost per wash and dry cycle (Carbon Dioxide Emissions) |
Annual cost for wash only (Carbon Dioxide Emissions) |
Annual cost for wash & dry (Carbon Dioxide Emissions) |
|
£0.339 (0.3kg) |
£1.537 (1.3kg) |
£123.728 (106.4kg) |
£561.232 (482.5kg) |
| The annual running costs are based on a single wash each day. | |||
Drying a full load of washing costs in the region of £1.084
(0.9kg). If you do this for every load of washing it will cost you over £281.84
(242.3kg) per year depending on how many loads you do, 5 a week in this case. The best advice for using your drier is don’t! There are big savings to be made by reducing the amount of drying you do.
Can you give me any data on the energy use of washing machines using different washing temperatures e.g. 30,40, 50, 60oC?
Yes, search for the (online) thesis on washing machines by Emir Lasic, University of Bonn. He tested nine machines on the market, ranging from 5kg to 11kg max load. For each of them the electric energy consumption was registered for washes at 30°, 40°, 60°C and for full, 3/4, 1/2, 1/4 (and empty) drum filling. Sinthesis and raw data are in the thesis.
Hi Patrick. can you be more specific. i.e. is it data about microwave ovens you are after or is it habits in the use of them in a single person flat?CheersRichard
I am trying to work out the average annual electricity consumption in a single person flat, excluding space heating. I wonder if you have any figures for microwave ovens?ThanksPatrick Fisher
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