Construction & estimating · Site operations

Plant fuel and CO₂ calculator

Diesel use, cost and CO₂ for a plant fleet from rated power, load factor and specific fuel consumption.

Standard: Rated kW × load factor × SFC

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Inputs in the worked example

The live calculator starts with these values; change any of them and every result, check and diagram updates instantly.

InputValueUnit
Rated power120kW
Load factor0.55
Specific fuel consumption0.26L/kWh
Hours per machine320h
Machines3
Diesel price1.95$/L

Worked example — results

ResultValueUnit
Litres per hour17.16L/h
Total fuel16,474L
Fuel cost$32,124
CO₂ (2.68 kg/L)44.15t
Fuel (kL)16.5 kLCO₂ (t)44.1 t
Diagram for the worked example

Method, formulas and assumptions

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For preliminary design and education. Check every result against the current standard and your own engineering judgement before use.