By calculating a baseline in Emitwise, you’ll see which suppliers contribute the most emissions—helping you decide where to focus first on your decarbonization journey.
Introduction
A Scope 3 baseline gives you a clear view of the emissions that come from your company’s supply chain. By calculating a baseline in Emitwise, you’ll see which suppliers contribute the most emissions—helping you decide where to focus first on your decarbonization journey.
This guide walks you through each step to upload your purchase data and calculate a Scope 3 baseline quickly and accurately.
Step-by-Step Guide
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Go To Your Profile
- Go to the Profile page
- Locate the Financial reporting year and Emissions tiles.
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Enter Your Financial Reporting Year
- Provide the end date for your most recent completed financial year. This is necessary to unlock the Emissions tile.
- Example: If your financial year ended on March 31, 2024, enter 31/03/2024.
- Export all relevant purchase records from your accounting system.
- Include any payments made to third parties for goods or services (these generate upstream emissions).
- Required data fields:
- Purchase Date
- Spend Value
- Currency
- Country of Spend
- Spend Category
Prepare Your Purchase Data File
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Upload Your Purchase Data
- Click Upload or Add File and select your purchase data file (CSV or Excel).
- If prompted, confirm the header row or column mapping so each field (Date, Spend Value, etc.) matches the correct column in your file.
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Submit and Wait for Calculation
- After mapping your columns and reviewing your data, click Submit.
- Emitwise will process your data to generate a Scope 1, 2, and 3 baseline.
- Refresh the page after a few minutes to see your Scope 3 results.
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View Your Scope 3 Baseline
- Once complete, you’ll see total emissions broken down by scope and spend category.
- Navigate to Analyse / Emissions overview to view your emissions by scope, spend category, and by supplier.
Conclusion
Congratulations! You’ve successfully calculated your Scope 3 baseline. This baseline equips you with a data-driven foundation to engage your suppliers, set reduction targets, and prioritize your decarbonization efforts.
Next Steps:
- Screen Your Suppliers: Explore the Collect > Supplier Data section to see which of your suppliers have sustainability information publicly available.
- Engage Key Suppliers: Add contact details or website links to automatically screen them in Emitwise and request further data (like corporate footprints or decarbonization initiatives).