Emission factor library
Only reviewed factors are listed. 8,159 verified, 0 imported and awaiting review. How we review factors
| Activity | Scope | Gas | Value | Unit | Boundary | Year | Status |
|---|---|---|---|---|---|---|---|
Wood pellets WTT- bioenergy › WTT- biomass | Scope 3 | Total CO₂e | 177 | kg CO2e per tonnes | Well-to-tank | 2026 | Verified (source) |
Wood pellets WTT- bioenergy › WTT- biomass | Scope 3 | Total CO₂e | 0.03744 | kg CO2e per kWh | Well-to-tank | 2026 | Verified (source) |
Domestic, to/from UK — Average passenger — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.0335 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Domestic, to/from UK — Average passenger — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.0335 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
International, to/from non-UK — Average passenger — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.02162 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
International, to/from non-UK — Average passenger — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.02162 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
International, to/from non-UK — Business class — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.04802 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
International, to/from non-UK — Business class — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.04802 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
International, to/from non-UK — Economy class — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.01656 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
International, to/from non-UK — Economy class — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.01656 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
International, to/from non-UK — First class — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.06623 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
International, to/from non-UK — First class — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.06623 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
International, to/from non-UK — Premium economy class — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.02649 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
International, to/from non-UK — Premium economy class — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.02649 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Long-haul, to/from UK — Average passenger — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.03213 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Long-haul, to/from UK — Average passenger — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.03213 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Long-haul, to/from UK — Business class — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.07137 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Long-haul, to/from UK — Business class — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.07137 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Long-haul, to/from UK — Economy class — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.02461 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Long-haul, to/from UK — Economy class — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.02461 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Long-haul, to/from UK — First class — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.09844 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Long-haul, to/from UK — First class — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.09844 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Long-haul, to/from UK — Premium economy class — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.03937 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Long-haul, to/from UK — Premium economy class — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.03937 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Short-haul, to/from UK — Average passenger — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.02286 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Short-haul, to/from UK — Average passenger — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.02286 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Short-haul, to/from UK — Business class — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.03373 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Short-haul, to/from UK — Business class — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.03373 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Short-haul, to/from UK — Economy class — With RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.02249 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Short-haul, to/from UK — Economy class — Without RF WTT- business travel- air › WTT- flights | Scope 3 | Total CO₂e | 0.02249 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Average (all passenger) WTT- business travel- sea › WTT- ferry | Scope 3 | Total CO₂e | 0.02555 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Car passenger WTT- business travel- sea › WTT- ferry | Scope 3 | Total CO₂e | 0.02932 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Foot passenger WTT- business travel- sea › WTT- ferry | Scope 3 | Total CO₂e | 0.00424 | kg CO2e per passenger.km | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 0% Laden WTT- delivery vehs & freight › WTT- HGV (refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.17199 | kg CO2e per km | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 0% Laden WTT- delivery vehs & freight › WTT- HGV (refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.27679 | kg CO2e per miles | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 0% Laden WTT- delivery vehs & freight › WTT- HGV (non-refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.14831 | kg CO2e per km | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 0% Laden WTT- delivery vehs & freight › WTT- HGV (non-refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.23868 | kg CO2e per miles | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 100% Laden WTT- delivery vehs & freight › WTT- HGV (refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.019 | kg CO2e per tonne.km | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 100% Laden WTT- delivery vehs & freight › WTT- HGV (non-refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.22246 | kg CO2e per km | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 100% Laden WTT- delivery vehs & freight › WTT- HGV (refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.41519 | kg CO2e per miles | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 100% Laden WTT- delivery vehs & freight › WTT- HGV (non-refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.35802 | kg CO2e per miles | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 100% Laden WTT- delivery vehs & freight › WTT- HGV (refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.25799 | kg CO2e per km | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 100% Laden WTT- delivery vehs & freight › WTT- HGV (non-refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.01639 | kg CO2e per tonne.km | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 50% Laden WTT- delivery vehs & freight › WTT- HGV (refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.21499 | kg CO2e per km | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 50% Laden WTT- delivery vehs & freight › WTT- HGV (non-refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.02731 | kg CO2e per tonne.km | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 50% Laden WTT- delivery vehs & freight › WTT- HGV (non-refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.18538 | kg CO2e per km | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 50% Laden WTT- delivery vehs & freight › WTT- HGV (refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.34599 | kg CO2e per miles | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 50% Laden WTT- delivery vehs & freight › WTT- HGV (non-refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.29835 | kg CO2e per miles | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — 50% Laden WTT- delivery vehs & freight › WTT- HGV (refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.03167 | kg CO2e per tonne.km | Well-to-tank | 2026 | Verified (source) |
Articulated (>3.5 - 33t) — Average laden WTT- delivery vehs & freight › WTT- HGV (refrigerated, all diesel) | Scope 3 | Total CO₂e | 0.03167 | kg CO2e per tonne.km | Well-to-tank | 2026 | Verified (source) |