Emissions
CO₂e per delivery,
calculated to ISO 14083
Give each vehicle an energy profile, and Zendera works out the CO₂e of every workday and every order it delivered. The figures follow ISO 14083, the standard for greenhouse gas reporting in transport, so you can hand them to customers who ask.
Hi there,
More and more customers ask what their deliveries emit, and they want a number they can put in their own sustainability report. Zendera now calculates it the way ISO 14083 describes: from what the vehicle actually burns or charges, for the distance it actually drove, shared fairly across the orders on the route.
1 · Vehicles
Tell Zendera what each vehicle uses
Open a vehicle in Registry → Vehicles. At the bottom of the vehicle panel you'll find Energy profile: the current period and its history. Click Add period to enter new values.
Choose when it starts
Valid from is the first day the values apply. You can go back as far as the first day of last month. A new period never changes the periods before it, so history stays as it was.
Pick the energy and the consumption
Choose the Energy carrier and enter the Consumption per 100 km, in litres, kg or kWh depending on the carrier. If the vehicle often pulls a trailer, add the With trailer figure too. A vehicle can have up to three carriers, for example diesel and HVO100.
Say what the values are based on
Based on is Fuel receipts, Manufacturer data or Estimate. Fuel receipts count as measured data in the report. Add a Source reference if you want to note where the figures come from, then click Save period.
The energy carriers you can choose from:
Turn off Powered vehicle for a trailer. It then has no consumption of its own, and the truck pulling it uses its With trailer figure instead.
For HVO100, biodiesel and biogas you can enter your supplier's well-to-wheel value with a Supplier reference. Zendera then uses that instead of the standard value.
kWh from the charger, the invoice or the manufacturer is used as it is. An estimate is treated as measured at the vehicle, so 11 % charging loss is added.
Vehicles without an energy profile get a default one overnight, from the Norwegian vehicle registry where possible, or a typical value for the vehicle's class. Your own period replaces it from its start date.
Adding and deleting periods is for admins, or anyone whose permission group includes Add and delete energy profile periods. Everyone who can see the vehicle can see its profile.
2 · Where it shows
On the workday, per stop, and in reports
Emissions are worked out for each finished workday. You find them in three places:
In Analytics → Workdays, open a workday. The Emissions card shows the total CO₂e (well-to-wheel) and the distance it was calculated for.
Click the card to see the formula and every input: tank-to-wheel, biogenic CO₂, data quality, the emission factor version, the return trip and the split per energy carrier.
The journey log on the same page shows the CO₂e of the orders delivered at each stop.
Every order's share is stored with its well-to-wheel and tank-to-wheel figures, data quality and distance, so it can go in a report for your customer. Ask us if you want an emissions report set up.
3 · The method
How the number is made
ISO 14083 asks for well-to-wheel figures. That is the fuel burned in the vehicle (tank-to-wheel) plus what it took to produce and deliver that fuel or electricity (well-to-tank). Well-to-wheel is the headline figure. Tank-to-wheel is shown next to it.
The distance driven
Zendera takes the distance the vehicle drove on the workday, from the best source it has: tachograph or vehicle odometer where you have them connected, otherwise the driver's GPS. The empty drive back counts too, because ISO 14083 includes it. The Return trip line tells you what was counted.
Emissions per km
The vehicle's energy profile for that date gives the consumption per km. That is multiplied by standard emission factors for the energy carrier (GLEC framework). Diesel and electricity differ by country (Norwegian diesel contains some biofuel, and the power grid mix differs), so the country of your organization's address decides which factor is used.
Shared across the orders
The workday total is split across the orders delivered on it: 65 % by each order's distance from pickup to delivery and 35 % by its freight weight. Freight weight is the larger of the real weight and the volume weight. If no order has weight or volume, that part is split evenly.
Example with made-up numbers: a diesel truck, organization in Norway
The factor version used is shown on every workday, so a figure can always be traced back.
CO₂ from the biological part of a fuel, such as HVO100 or biogas, is reported on its own line and is not part of the CO₂e totals, as the standard asks.
Each figure says what it rests on: Measured data (fuel receipts), Modelled (manufacturer data or an estimate) or Default value. When a workday uses several vehicles, the lowest quality is shown.
When you add or delete a period, the workdays it covers are calculated again in the background. You don't need to do anything.
4 · Troubleshooting
If a number looks off
Click the Emissions card on the workday first. If emissions could not be calculated, it tells you why under What you can do. Otherwise, these are the usual suspects:
The card says there is no emission factor. Add an energy profile to the vehicle, and make sure trailers are marked as not powered.
Check Valid from in the vehicle's history. The period that applies is the one in force on the workday's date.
Consumption is per 100 km: litres for liquid fuels, kg for gas and hydrogen, kWh for electricity. A value per km gives a figure 100 times too low.
Compare the distance on the card with the route. Poor GPS coverage can leave Zendera without a reliable distance, and then no CO₂e is calculated.
If the data quality says Default value, the vehicle still runs on a typical value. Enter your own consumption, ideally from fuel receipts.
Orders without weight or volume count as light. Adding freight weight or volume to the orders makes the split fairer.
Start with your vehicles
Open Registry, pick a vehicle you know well and check its energy profile. A period based on fuel receipts gives your customers the most solid numbers.