Methods and factors
Review the methodology and emission factor versions used when calculations run.
Methodology library
Versioned methods pinned at computation run time.
| Code | Name | Version | Effective from | Assumptions |
|---|---|---|---|---|
| UK-SRS-MRV-ORG | UK Organisational Emissions Method | 2026.1 | 2026-01-01 | Monthly activity aggregation to reporting period; Uncertainty carried as confidence band per category; Supplier data defaults to conservative factors where absent |
Emission factor versions
Factor vintage is explicit and traceable.
| Factor key | Source | Year | Value | Published |
|---|---|---|---|---|
| grid_electricity | UK Government conversion factors | 2025 | 0.193 kgCO2e/kWh | 2025-06-01 |
| natural_gas | UK Government conversion factors | 2025 | 0.183 kgCO2e/kWh | 2025-06-01 |
| diesel | UK Government conversion factors | 2025 | 2.68 kgCO2e/L | 2025-06-01 |