coal (domestic)
solid coalDESNZ 2025 'Coal (domestic)' — coal burned in household stoves and open fires. It is NOT the industrial grade that the bare 'coal' / 'hard coal' entry carries: 2904.95234 kgCO2e/tonne against 2395.28994, about 21% more, mostly because domestic combustion is less complete (DESNZ's CH4 component is 240.352 kg/tonne here against 7.6384 for industrial coal). No density is recorded for any coal grade — coal is sold by mass — so volume↔mass shows 'not available'.
- Coal energy and emission factors vary widely by rank, region and moisture/ash content. This entry is DESNZ 'Coal (domestic)' (UK context). No density is available (coal is sold by mass), so volume conversions are not available.
Easily confused with
Different products with different numbers. Check you are on the right one.
- hard coal 2.39528994 kgCO₂e/kg
- coking coal 3.16465002 kgCO₂e/kg
- coal (electricity generation) 2.22522448 kgCO₂e/kg
Density
Not available.
Heating values
- 28.613 MJ/kg
- 30.119 MJ/kg
Emission factors
- CO₂e 2.90495234 kgCO₂e/kgdirect combustion · UK · 2025
| Metric | Value | Scope | Region / year | Source |
|---|---|---|---|---|
| CO₂e | 2.90495234 kgCO₂e/kg | direct combustion | UK · 2025 |
CO₂ ≠ CO₂e — separate metrics, never converted into one another. What these metrics mean →
Worked example: 1 kg coal (domestic) converted to every unit
At a glance
- Energy · LHV 7.948 kWh source-based
- CO₂e ~2.9 kg CO₂e region + year
All results
Energy
Same energy expressed in other units.
Net calorific value · LHV/NCV
Gross calorific value · HHV/GCV
Mass
Emissions
CO₂ and CO₂e are separate — never derived from each other.
Energy density
Energy per unit of mass or volume.
Net calorific value · LHV/NCV
Assumptions
- heating value basis: energy on LHV/NCV basis, 28.613 MJ/kg
- heating value basis: energy on HHV/GCV basis, 30.119 MJ/kg
Sources
Follow each source back to its primary document — that traceability is the point. How conversions work →