Factor record · onsite-heat-and-steam-kwh-kwh-scope-3-defra-2025last verified 2025-06-10 · DESNZ
0.03341
kgCO2e / kWh
Historical vintage · Current: DEFRA 2026Onsite heat and steam (kWh) — well-to-tank (WTT)
WTT- heat and steam
Vintage
Record
- Identifier
- ibwezZLL11OC
- Activity
- Onsite heat and steam (kWh) — well-to-tank (WTT)
- Category
- other
- Sub-category
- WTT- heat and steam
- Lifecycle stage
- Well-to-tank (WTT)
- Region
- GBR · United Kingdom
- Value
- 0.03341 kgCO2e/kWh
- Scope
- Scope 3*
- Scope 3 category
- Category 3
- Methodology
- activity based
- GWP
- AR5 / GWP100
- Vintage year
- 2025
- Published
- 2025
- Source reference
- Factors by Category sheet, ID 16_919_4002_5_1
- License
- Open Government Licence v3.0
- Verified
- 2025-06-10 · DESNZ
Citation
DEFRA 2025, Onsite heat and steam (kWh) — well-to-tank (WTT), Factors by Category sheet, ID 16_919_4002_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 Scope 3 Category 3 well-to-tank factor covers upstream fuel-supply emissions associated with purchased heat or steam. Report it separately from the corresponding Scope 2 heat or steam factor; distribution losses and their upstream component are separate records.
Related records
Browse full libraryDepartment for Energy Security and Net Zero · 2025 · Open Government Licence v3.0Back to the library