Wood logs — well-to-tank (WTT)

Fuels

DEFRA 2026Scope 3*activity based

Vintage

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Unchanged from 2025

0.01277 kgCO2e/kWh in 2025

Record

Identifier: 3b144e0b05c3
Activity: Wood logs — well-to-tank (WTT)
Category: fuels
Sub-category: WTT- biomass
Lifecycle stage: Well-to-tank (WTT)
Region: GBR · United Kingdom
Value: 0.01277 kgCO2e/kWh
Scope: Scope 3*
Scope 3 category: Category 3
Methodology: activity based
GWP: AR5 / GWP100
Vintage year: 2026
Published: 2026
Source reference: Factors by Category sheet, ID 12_901_1043_5_1
Source: Department for Energy Security and Net Zero (DEFRA)
License: Open Government Licence v3.0
Verified: 2026-07-31 · DESNZ

Open primary source

Citation

DEFRA 2026, Wood logs — well-to-tank (WTT), Factors by Category sheet, ID 12_901_1043_5_1

Methodology

Derived from direct physical activity measurements (litres, kilometres, kilograms). The most accurate approach where activity data exists.

Notes

* Scope 3 boundary · This is a Scope 3 Category 3 well-to-tank factor for emissions from producing and delivering the fuel before it is used. When the reporting organisation burns the fuel in equipment or vehicles it owns or controls, report this separately from the corresponding Scope 1 combustion factor; it does not replace or include combustion emissions.

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Department for Energy Security and Net Zero · 2026 · Open Government Licence v3.0Back to the library