biodiesel
liquid biofuelDESNZ 2025 Biodiesel (ME) — fatty-acid methyl ester. DESNZ lists identical figures for 'from used cooking oil' and 'from tallow' variants, and a separate 'Biodiesel (BtL or HVO)' (NCV 44 MJ/kg, density 780 kg/m³, 0.03558 kgCO2e/L). Scope-1 CO2e (CH4+N2O) separate from biogenic combustion CO2. IPCC 2006 Biodiesels NCV 27.0 MJ/kg (wide range), raw CO2 70,800 kg/TJ.
- Biogenic CO2 from biodiesel combustion is reported on a SEPARATE line ('outside of scopes'), not silently zeroed.
Density
890 kg/m³
at 15 °C (fuel-properties basis)
Heating values
LHV/NCV
HHV/GCV
Emission factors
| Metric | Value | Scope | Region / year | Source |
|---|---|---|---|---|
| CO2e | 0.16751 kg co2e per l | Scope 1 (direct) | UK · 2025 | |
| biogenic CO2 | 2.39 kg co2 per l | Scope 3 upstream | UK · 2025 |
CO₂ ≠ CO₂e — separate metrics, never converted into one another. Why? →
Worked example
Open in converter →Converting
1 L · biodiesel
Energy
Same energy expressed in other units.
33.11 MJ
source-based
9.197 kWh
source-based
0.03311 GJ
source-based
31,380 BTU
source-based
34.44 MJ
source-based
9.568 kWh
source-based
0.03444 GJ
source-based
32,650 BTU
source-based
Mass
0.89 kg
source-based
Volume
1,000 mL
exact
1 L
exact
0.001 m³
exact
0.264172 US gal
exact
0.219969 imp gal
exact
0.00628981 bbl
exact
Emissions
CO₂ and CO₂e are separate — never derived from each other.
~0.168 kg CO2e
region + year
~2.39 kg CO2
region + year
Energy density
Energy per unit of mass or volume.
37.2 MJ/kg
source-based
Assumptions
- density: assumed biodiesel density 890 kg/m³ at 15 °C (fuel-properties basis)
- heating value basis: energy on LHV/NCV basis, 37.2 MJ/kg
- heating value basis: energy on HHV/GCV basis, 38.7 MJ/kg
Sources
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