How to Include Carbon Data in Tenders and RFP Responses

Why Tenders Now Have Carbon Sections

Public sector procurement in the UK (PPN 06/21), Germany (§ 97 GWB), and the EU (Green Public Procurement directive) now requires sustainability evaluation criteria in tenders above threshold value. Enterprise buyers running CSRD-compliant programmes are adding carbon scoring to their supplier selection criteria.

Most SMEs score poorly on carbon sections not because their emissions are high but because they do not know what to write. This guide gives you the exact structure.

What Buyers Actually Score

Carbon sections in tenders and RFPs typically award marks on three elements:

The data question is usually the easiest to answer well — yet most SMEs either leave it blank or give a vague narrative. Buyers want numbers, methodology, and a reference they can verify.

The Minimum Data Set for a Tender Response

For any tender carbon question, your response should include:

1. Total annual GHG emissions (tCO2e): > Scope 1: [X] tCO2e | Scope 2 (market-based): [X] tCO2e | Scope 3 (key categories): [X] tCO2e | Total: [X] tCO2e > Reporting year: [YYYY]

2. Emissions intensity metric: > [X] tCO2e per employee | [X] tCO2e per £/€1m revenue

3. Calculation methodology: > "Calculated in accordance with the GHG Protocol Corporate Standard using DEFRA [year] conversion factors. Scope 2 reported on a market-based basis."

4. Verification reference: > "DeCarbonOPS Carbon Passport — verification URL: [your Carbon Passport URL]"

Worked Example: Full Tender Carbon Response

Here is a complete response to a typical tender carbon question:

--- *Our annual GHG emissions for the [YYYY] reporting year are as follows:*

• *Scope 1 (direct combustion, refrigerants): 12.4 tCO2e*
• *Scope 2 (purchased electricity, market-based): 0.0 tCO2e (renewable REGO-backed tariff)*
• *Scope 3 (Categories 3, 5, 6, 7): 22.7 tCO2e*
• *Total: 35.1 tCO2e*
• *Emissions intensity: 2.9 tCO2e per employee (12 FTE)*

*Methodology: GHG Protocol Corporate Standard, DEFRA 2023 conversion factors. Scope 2 reported using market-based method.*

*Reduction target: We are committed to reducing total absolute emissions by 30% by 2028 against our 2023 base year. Current progress: 8% reduction achieved in Year 1.*

*Verification: Full Carbon Passport with permanent verification URL available on request.*

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This response will score full marks on data completeness for most public sector and enterprise tender frameworks.

What Buyers Look for in a Reduction Plan

1. A credible reduction plan needs three elements:
2. A base year (the year you first measured)
3. A target (percentage reduction and target year)
4. Actions (at least 2–3 specific measures already in progress)

A sample reduction plan section:

> "Base year: 2023 (35.1 tCO2e). Target: 30% absolute reduction by 2028. Actions in progress: (1) switched to renewable electricity tariff in Q1 2024 — eliminated Scope 2; (2) implemented rail-first travel policy — 40% reduction in flight emissions vs. base year; (3) office LED lighting upgrade complete — 30% electricity reduction."

Scoring Tiers — What Gets Full Marks vs. Partial

Using Your DeCarbonOPS Carbon Passport in a Tender

Your Carbon Passport provides the permanent verification URL that buyers use to confirm your data is independently calculated. Paste it directly into the tender evidence field. The URL format is https://www.decarbonops.com/verify/[token] and is permanently accessible.

Buyers can verify: your Scope 1/2/3 breakdown, total tCO2e, intensity metrics, reporting year, and GHG Protocol methodology statement — everything needed to complete their own Scope 3 Category 1 or 4 reporting and to award full marks on tender carbon sections.