Efficiency to kJ per kWh
Type a value in % to get it in kJ/kWh instantly.
10,557.18kJ/kWh
That's 1.03× as efficient as an old coal plant, while a gas-turbine peaker is 1.11× more efficient. Every kWh of electricity burns 2.933 kWh of fuel.
Convert the other way: kJ/kWh to %
What it means
How efficient is that?
On the fuel’s heating value as given (HHV in the US, usually LHV in Europe); the same plant is about 10 % “more efficient” on LHV for natural gas.
The math
How to convert % to kJ/kWh
Efficiency = 3,412.14 ÷ heat rate (BTU/kWh) = 3,600 ÷ heat rate (kJ/kWh) = 859.85 ÷ heat rate (kcal/kWh).
Example: 34.1 % = 10,557.2 kJ/kWh.
Every unit
That plant in every unit
Tables
% to kJ/kWh conversion table
| % | kJ/kWh |
|---|---|
| 24.4 % | 14,754.1 kJ/kWh |
| 28.4 % | 12,676.1 kJ/kWh |
| 31 % | 11,612.9 kJ/kWh |
| 34.1 % | 10,557.2 kJ/kWh |
| 37.9 % | 9,498.68 kJ/kWh |
| 42.7 % | 8,430.91 kJ/kWh |
| 45.5 % | 7,912.09 kJ/kWh |
| 48.7 % | 7,392.2 kJ/kWh |
| 52.5 % | 6,857.14 kJ/kWh |
| 56.9 % | 6,326.89 kJ/kWh |
| 62 % | 5,806.45 kJ/kWh |
kJ/kWh to % conversion table
| kJ/kWh | % |
|---|---|
| 5,500 kJ/kWh | 65.4545 % |
| 6,000 kJ/kWh | 60 % |
| 6,500 kJ/kWh | 55.3846 % |
| 7,000 kJ/kWh | 51.4286 % |
| 7,500 kJ/kWh | 48 % |
| 8,000 kJ/kWh | 45 % |
| 9,000 kJ/kWh | 40 % |
| 10,000 kJ/kWh | 36 % |
| 11,000 kJ/kWh | 32.7273 % |
| 12,000 kJ/kWh | 30 % |
| 14,000 kJ/kWh | 25.7143 % |
Quick answers
Quick answers
- How many kJ/kWh is 1 %?
- 1 % is 360,000 kJ/kWh.
- How many kJ/kWh is 10 %?
- 10 % is 36,000 kJ/kWh.
- How many kJ/kWh is 34.1 %?
- 34.1 % is 10,557.2 kJ/kWh.
The units
About these units
Efficiency (%)
Electricity out as a percentage of fuel energy in.
kJ per kWh (kJ/kWh)
The SI heat rate; MJ/MWh is the same number.
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