Estimated CO₂ Emissions for Heavy Duty Road Transport

Calculation

Basic calculation: (Distance) * (MetricTonnes) * (EmissionsFactor) / (Conversion of g to kg) = Estimated total emissions in kg

Calculation demonstrating units: (km) * (t) * (gCO2e/t.km) / (1000g) = kgCO2e

Example: If distance is set to 100km and Metric Tonnes is set to 10 the estimated total emissions for diesel would be: (100km) * (10t) * (67.5gCO2e/t.km) / (1000g) = 67.50kgCO2e

Concepts

WTW stands for “Well-to-Wheels,” which means it counts all the CO2 from making the fuel to using it in your vehicle. In simpler terms, WTT (“Well-to-Tank”) is the CO2 made while creating and transporting the fuel, and TTW (“Tank-to-Wheels”) is the CO2 emitted when you drive.

LCA stands for “Life Cycle Assessment,” and it’s a method to evaluate the environmental impact of a product from its creation to its disposal. The “boundaries” in LCA define what stages are included in the analysis, like material sourcing, manufacturing, and end-of-life disposal. To compare data, you’d look at the environmental footprint of different products or services over their entire life cycle to see which one is more sustainable.

CO₂e stands for “Carbon Dioxide Equivalent,” a standard unit that converts the impact of various greenhouse gases into the equivalent amount of CO₂. This allows for a simplified, single number to represent the total climate impact of emissions from different gases.

t.km stands for Tonne Kilometers which is a standard unit when analyzing emissions or consumption in the transport sector. It combines the amount of material to be moved with the distance