All calculations on this site are based on current fuel prices they are checked regularly are automatically updated and were last changed on:-
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.![]() |
pence | lowest priority |
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£ 10+ | Think twice, perhaps you should focus elsewhere first |
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£ 100+ | Worth doing |
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£ 1000+ | Focus your effort here to save as much money as possible |
| less than 15 years to payback investment | |
| More than 15 years to payback the investment |

We now have a bit of fun energy calculator app for android phone, click the link to find out more. Link to app