Carbon Footprint for Retail and E-Commerce Companies: Full Guide
The Retail and E-Commerce Emissions Profile
Retail companies — whether physical stores, pure-play online, or omnichannel — have a distinctive carbon footprint. Unlike manufacturers, they generate very little Scope 1 (most have no heavy fuel consumption). Their dominant emission sources are:
- Scope 2: Office and warehouse electricity, store lighting and HVAC
- Scope 3 Category 6 and 7: Business travel and employee commuting
- Scope 3 Category 4: Outbound delivery and last-mile logistics (not yet covered in the DeCarbonOPS calculator — handled separately as freight emissions)
Enterprise clients buying from retail brands and distributors under CSRD primarily ask for Scope 1, 2, and the Categories 3, 5, 6, and 7 that DeCarbonOPS calculates.
Scope 1 for Retail Businesses
Most retailers have minimal Scope 1. The main sources are:
- Company car fleet: Diesel or petrol vehicles used by sales reps, delivery drivers, or management
- LPG or natural gas for heating: Particularly in older high-street premises or large distribution centres
- Refrigerant leaks: For food retailers with chilled cabinets or cold-storage warehouses
If you have no company cars and use only electric heating, your Scope 1 may genuinely be very low — or zero. That is correct to report.
Scope 2 for Retail Businesses
Electricity is typically the largest emission source for retailers. Key data to collect:
- Total annual kWh across all sites (head office, warehouse, stores)
- Whether you have a renewable tariff with Guarantees of Origin (GO) or REGO certificates
- Whether you have on-site solar generation
| Site type | Typical annual kWh |
|---|---|
| Single office (10 staff) | 12,000–25,000 kWh |
| Retail store (200 sqm) | 40,000–80,000 kWh |
| Warehouse (1,000 sqm) | 80,000–200,000 kWh |
| E-commerce fulfilment (2,000 sqm) | 120,000–350,000 kWh |
Multiply by your country's DEFRA 2023 grid factor. Germany (0.380), Netherlands (0.270), France (0.052), Poland (0.773).
Scope 3 Travel and Commuting
For a retail or e-commerce company, Scope 3 Categories 6 and 7 are usually significant:
- Business travel (flights, rail, hotels) for trade shows, supplier visits, and head office meetings
- Employee commuting — the largest variable for large teams
Worked example: Online fashion retailer, 35 employees, Amsterdam:
| Source | Input | Factor | tCO2e |
|---|---|---|---|
| Office electricity (NL) | 28,000 kWh | 0.270 kg/kWh | 7.56 |
| Company van diesel | 4,200 L | 2.68 kg/L | 11.26 |
| Short-haul flights | 18,000 pkm | 0.255 kg/pkm | 4.59 |
| Rail travel | 5,000 pkm | 0.041 kg/pkm | 0.21 |
| Hotel nights | 45 nights | 31.1 kg/night | 1.40 |
| Employee commuting | 14 km x 220 x 35 | 0.170 kg/km | 18.33 |
| Waste (recycled) | 600 kg | 0.021 kg/kg | 0.01 |
| Total | 43.36 tCO2e |
Intensity: 43.36 / 35 = 1.24 tCO2e per employee — typical for a low-Scope-1 online business.
What to Do About Last-Mile Delivery
Delivery emissions (Category 4 — upstream/downstream transportation) are the single largest missing category for e-commerce. Your courier partners — DHL, DPD, PostNL, UPS — all publish carbon factors per parcel per km. Ask your logistics account manager for an annual freight emissions report. This can typically be added as a Category 4 note on questionnaires even if the number is estimated.
How to Report Your Footprint to Procurement Teams
When asked on a sustainability questionnaire: provide Scope 1, 2, and 3 totals, note that Scope 3 covers Categories 3, 5, 6, and 7, and flag that Category 4 (logistics) is reported separately. Share your Carbon Passport URL for verified data.
Frequently Asked Questions
What are the main sources of carbon emissions for an e-commerce business?
For most e-commerce companies, the largest emission sources are: Scope 3 Category 1 (purchased goods and packaging), Scope 3 Category 4 (upstream transportation and distribution), Scope 2 (warehouse electricity), and Scope 3 Category 9 (downstream logistics to customers). Scope 1 is typically small unless operating a vehicle fleet.
How do I calculate delivery emissions for an online retailer?
Multiply your total annual parcel volumes by average delivery distance and apply a freight emission factor. For UK domestic: Royal Mail's published factor is approximately 0.064 kgCO2e per parcel for standard delivery. For couriers like DHL and DPD, use their published emission factors or request carrier-specific data through their sustainability portals.
Does returned merchandise generate additional carbon emissions?
Yes. Return logistics typically generate 30–50% of outbound delivery emissions per item. High return rate categories (fashion apparel averages 30–40% return rates) can double effective per-unit delivery emissions. Returns processing at warehouse (sorting, repackaging, restocking) adds additional Scope 2 emissions.
What is a carbon-neutral delivery claim and when is it valid?
A carbon-neutral delivery claim is valid when: (1) you have measured actual per-parcel delivery emissions, (2) you have purchased verified offsets (VCS or Gold Standard) to match, and (3) you hold retirement certificates. Claiming carbon-neutral delivery based only on a carrier's programme without independent verification risks greenwashing under EU Green Claims Directive.
Which carbon reporting framework is most relevant for e-commerce SMEs?
GHG Protocol Corporate Standard is the base framework for all emissions reporting. For e-commerce specifically, the GHG Protocol Product Standard applies to per-product lifecycle accounting. For supply chain disclosure to large buyers, CSRD Scope 3 Category 1 and Category 4 data is what enterprise procurement teams request.
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