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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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
Taking an extremely unlikely scenario to illustarte what this means, the numbers in the table show what would be required of the land in 2010 and in 2035 assuming that all oil is produced from the land. Many of the numbers used have come from the CIA website, an excellent source of data, an example of which is shown below. The key number is the use of oil each day, the number is 80,000,000 bbl per day (barrels per day) today and this is likely to double by 2035.
Year | barrel of oil used per day | barrels of oil used per year | area required to "grow" this oil | total arable land area | percent of arable land required to "grow" oil |
---|---|---|---|---|---|
2010 | 80,000,000 | 29,220,000,000 | 1,461,000 | 19,883,500 | 7.3 |
2035 | 160,000,000 | 58,440,000,000 | 2,922,000 | 17,383,500 | 16.8 |
On the earths surface there are 148,940,000 km2 of land, of which 13.35% is arable (land you can use for growing crops), so the amount of land at our disposal is 19883500 km2. For various reasons this land is also being lost at a rate of 100,000 km2 per year, so by 2035 this number will be 17383500 km2. So by 2035 this would be 17% of the worlds surface, or about a third the area of the USA.
The problems are clear with biofuel use, forests will be removed, fuel crops will compete with food crops in a hungry world and the quality of the land and soil will be eroded. The scenaro is extreme here and unlikely and is intended only to illustrate the scale of the issue.
World Climate Change Metrics
(2021)
↑
Annual
+11353 TWh↑
Decade
2040 149000 TWh to 171000 TWh
(2021)
↑
Annual
+2.6 Gt↑
Decade
2040 36 Gt to 46 Gt
(2021)
↑
Annual
+835 million↑
Decade
2040 8.45 billion to 9.5 billion
(2021)
10+Gt CO2
↑
Annual
+1168 TWh↑
Decade
2040 10000 TWh to 13000 TWh
(2021)
↑
Annual
+24 ppm↑
Decade
2040 450 ppm to 500 ppm
(2022)
↑
Annual
+0.26°C↑
Decade
2040 1.5°C to 2.5°C
(2020)
–
Annual
+46.5 mm↑
Decade
2040 150 mm to 200 mm
(2020)
↓
Annual
0.95 million km2↓
Decade
to 2 million km2
2040 2 million km2
to 0 million km2
(2020)
↓
Annual
-1600 Gt↓
Decade
2040 -7000 Gt to -10000 Gt
(2020)
↓
Annual
-2500 Gt↓
Decade
2040 -7000 Gt to -10000 Gt
Each Decade
↓
Decade
(2019)
↑
Annual
+2169 TWh↑
Decade
2040 9000 TWh to 12000 TWh
(2018)
↑
Annual
0.96 Gt↑
Decade
2040 5.4 Gt to 7.2 Gt
≅4.6 GtCO2 emissions prevented
Example 50% gas power generation substituted with renewables
≅2 GtCO2 emissions prevented
≅3.7 GtCO2 emissions prevented
Example 50% gas power generation with CCS
≅1.6 GtCO2 emissions prevented
(2017)
↑
Annual
543 TWh↑
Decade
2040 1250 TWh to 2200 TWh
(2015)
↓
Annual
0.336 million km2↓
Decade
to 39.7 million km2
2040 39 million km2
to 39.5 million km2
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