How many electric KWh will1 liter of diesel produce?

One liter of diesel fuel produces approximately 36.1 megajoules (MJ) of energy. When converted to kilowatt-hours (kWh), this equates to about 10 kWh of electrical energy. However, the actual amount of electricity generated can vary based on the efficiency of the conversion process. Typically, the efficiency of converting diesel to electricity in a generator is around 30-40%, meaning you might realistically get about 3 to 4 kWh from one liter of diesel.