Estimate generator fuel consumption and run time from tank capacity.
Specific fuel consumption is best near 75 per cent load and worsens sharply below 30 per cent. Fuel cost per kWh from a diesel generator is typically several times the grid price. Fuel is the dominant cost of generator operation, so runtime on a tank and cost per kWh are the two figures that drive both logistics and budget.
Generator Fuel Consumption
Consumption = output kW × specific fuel consumption in litres per kWh
Consumption = output kW × specific fuel consumption in litres per kWh Specific fuel consumption is best near 75 per cent load and worsens sharply below 30 per cent. Fuel cost per kWh from a diesel generator is typically several times the grid price.
Fuel is the dominant cost of generator operation, so runtime on a tank and cost per kWh are the two figures that drive both logistics and budget.
This calculator takes 5 inputs: Generator output, Loading, Specific fuel consumption, Fuel tank capacity, Fuel price per litre. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.