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Streamline your CO2 reporting with Unite

Do you manage emissions reporting in your company? If so, you may well be looking for a way to simplify your processes. In the article below, we outline how you can generate CO₂ reports with Unite in just a few clicks.

Unite stands for both successful business and transparency. Together with our partner Yook, we’ve built a user-friendly way to visualise the carbon footprint of orders placed on Unite. With just a few clicks, you can download CO₂ reporting data for your company’s entire order history.

This feature will simplify your reporting in a way that’s compliant with the GHG Protocol Scope 3 and the Corporate Sustainability Reporting Directive (CSRD) and significantly reduce the time you spend on data collection and processing.

How to download the CO2 report

Log into your account on mercateo.com and go to the ‘Order archive’ tab under the My Mercateo menu. 

Click on ‘New: extended report’ where you’ll be redirected to a page to download the report.

To access this page, you’ll need to log in with your existing details. Please note that this step will soon no longer be required.

If your customer number is displayed, the login was successful. You can now download the report in the language set for your account.

All your company’s orders are stored in your account. Specify the timeframe for the download by entering the start and end dates. Please note that you can enter a maximum period of 365 days.

Choose between Excel or CSV as your export format. Now click on the ‘Download order history’ button. You’ll see a confirmation pop-up when the download is complete.

How to analyse and interpret the CO2 report

Total CO₂ emissions 

Open the export to access the greenhouse gas emissions data of your orders. The AC column lists the total CO₂ emissions for each order in kilograms.

Don’t be confused by the term ‘CO₂e data’ that appears later. This refers to greenhouse gases being measured in CO₂ equivalents. To correctly interpret the data, first filter out any cancelled or unknown orders (Go to ‘Order status’ in column A – ‘Cancelled’ or ‘Unknown’). You can then use the result for your carbon accounting.

It’s important to note that the entries for freight costs don’t include CO₂e data specific to product groups. This is because there is no direct correlation between prices and the greenhouse gas emissions of individual deliveries.

Data accuracy value

The AD column contains the data accuracy value. It ranges from 0 to 90. The higher the value, the better the quality of the data. Further details can be found in ‘Unite CO₂ Reporting Method, version 1.0’ below.

Unite CO2 Reporting Method, version 1.0

How to quickly and accurately measure greenhouse gas emissions

You can determine the greenhouse gas emissions of the goods you’ve purchased on Unite quickly and accurately. In a pilot study, Yook and Unite have developed a method enabling you to see the greenhouse gas emissions of any order item at the click of a button. Behind this simple click is a streamlined data collection process for carbon reporting that complies with the GHG Protocol Scope 3 and the Corporate Sustainability Reporting Directive (CSRD). 

How to use the CO₂ data provided 

Utilise the data in accordance with the Greenhouse Gas Protocol Scope 3.1 for your CO₂ accounting. This allows you to measure the impact of your purchased goods on your corporate carbon footprint. This method calculates the company’s own and all other relevant greenhouse gas emissions along the value chain.

You benefit from: 

  • Good data availability for C-parts 

  • Easier data collection 

  • Quick results for extensive product portfolios or order histories  

  • Well-documented methodology 

  

The following section explains why you can’t (yet) compare the data sets of two products. 

Product Carbon Footprint (PCF) method: 

The aims of this method are twofold: firstly, to provide Unite customers with all crucial emissions data for goods and services purchased, and secondly, to integrate specific data that will enable future product comparison.

The CO₂e data in Version 1.0 relies on a spend-based carbon accounting approach. In this method, each euro spent is assigned a CO₂e intensity factor per product group.

Unite CO₂ Reporting V1.0 provides cradle-to-gate emissions data for the goods and services purchased. Cradle-to-gate means data collection from the extraction of raw materials to the production of a finished product. It also includes intermediate transport and manufacturing processes. However, it doesn’t cover shipping, usage, or end-of-life phases.

If you’re comparing greenhouse gas emissions data over a prolonged period, it’s important to note that the results of the PCF method can fluctuate with price changes.

One reason why product group-based data isn’t suitable for product comparison is that it’s not calculated for specific items and varies from one supplier to the next. To nevertheless enhance comparability, Unite will gradually integrate manufacturers’ PCF data.

Details for data reference

Please cite the data as ‘Unite 2024, CO₂ Reporting Version 1.0’ and ensure you always use the most recent version. Add the timeframe of your order data. Bear in mind that Yook sources CO₂ factors from European databases, primarily ADEME’s Base Empreinte V23.0.

The Data Accuracy Score helps you combine your Unite CO₂ reporting data with other data sources. The scale ranges from 0 to 90, with 90 representing the highest data quality. To track improvements in data quality, we recommend including the Data Accuracy Score in your reporting.

The Yook safety margin compensates for statistical uncertainties to prevent underestimating greenhouse gas emissions when data accuracy is low. The safety margin correlates with the Data Accuracy Score. The calculated CO₂ footprint of a product is multiplied by the score. Please note this when combining different PCF data sources.

Data Accuracy Score Method for calculating the carbon footprint
Method

Safety 

margin

1-3 Spend-based PCF, supplier-specific, cradle-to-gate
Average CO₂e factor for all product categories sold by a retailer per euro, multiplied by the product price.
1.5
4-20 Spend-based PCF, category-specific, cradle-to-gate
Product category-specific CO₂e factor per euro, multiplied by the product price.
1.5
20-60 Average data PCF, cradle-to-gate
Average LCA-based PCF value per unit purchased for a product category.
1.3
60-90 Supplier-specific PCF, cradle-to-gate
Supplier-specific PCF value per unit purchased for the specific product.
1.1
Data Accuracy Score 1-3
Method for calculating the carbon footprint Spend-based PCF, supplier-specific, cradle-to-gate
Method Average CO₂e factor for all product categories sold by a retailer per euro, multiplied by the product price.
Safety margin 1.5
Data Accuracy Score 4-20
Method for calculating the carbon footprint Spend-based PCF, category-specific, cradle-to-gate
Method Product category-specific CO₂e factor per euro, multiplied by the product price.
Safety margin 1.5
Data Accuracy Score 20-60
Method for calculating the carbon footprint Average data PCF, cradle-to-gate
Method Average LCA-based PCF value per unit purchased for a product category.
Safety margin 1.3
Data Accuracy Score 60-90
Method for calculating the carbon footprint Supplier-specific PCF, cradle-to-gate
Method Supplier-specific PCF value per unit purchased for the specific product.
Safety margin 1.1

Table 1: Data accuracy and safety margin range of different methods of PCF calculation

For further insights into carbon footprint calculation methods, detailed information is available on the Yook Website.