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biogas

gas biofuel

DESNZ 2025 Biogas. Related DESNZ products: Biomethane (NCV 49 MJ/kg, density 0.725 kg/m³) and Landfill Gas (NCV 12.3 MJ/kg, density 1.3 kg/m³) — not separately catalogued in v0.1. Scope-1 CO2e (CH4+N2O) separate from biogenic combustion CO2. IPCC 2006 Other Biogas NCV 50.4 MJ/kg (methane-theoretical, wide range), raw CO2 54,600 kg/TJ. Note DESNZ biogas NCV (20 MJ/kg) is much lower than IPCC's (raw methane basis) because biogas is CO2-diluted.

  • Biogas energy content varies with its methane fraction (typically 50–70% CH4, balance CO2). The figure is representative.
  • Biogenic CO2 from biogas combustion is reported on a SEPARATE line ('outside of scopes'), not silently zeroed.

Easily confused with

Different products with different numbers. Check you are on the right one.

Density

1.15 kg/m³

at gas phase; reference T/P NOT stated by DESNZ

Heating values

LHV/NCV
  • 20 MJ/kg
HHV/GCV
  • 21.978 MJ/kg
Source for all values above

Emission factors

CO₂ ≠ CO₂e — separate metrics, never converted into one another.Biogenic CO₂ is listed on its own line: the carbon still leaves the stack, but it is accounted for separately from fossil CO₂ rather than added to it. What these metrics mean →

Worked example: 1 m³ biogas converted to every unit
Open in converter →
Converting
1 m³ · biogas

At a glance

All results

Energy

Same energy expressed in other units.

Net calorific value · LHV/NCV

LHV vs. HHV — what is the difference?
source-based every figure below
23 MJ
6.389 kWh
0.023 GJ
21,800 BTU

Gross calorific value · HHV/GCV

source-based every figure below
25.27 MJ
7.021 kWh
0.02527 GJ
23,960 BTU

Mass

1.15 kg
source-based

Volume

exact every figure below
1,000,000 mL
1,000 L
1 m³
~264.172 US gal
~219.969 imp gal
~6.28981 bbl

Emissions

CO₂ and CO₂e are separate — never derived from each other.

region + year every figure below
~0.00143 kg CO₂e
~1.27 kg CO₂

Energy density

Energy per unit of mass or volume.

Net calorific value · LHV/NCV

LHV vs. HHV — what is the difference?
20 MJ/kg
source-based

Assumptions

  • density: assumed biogas density 1.15 kg/m³ at gas phase; reference T/P NOT stated by DESNZ
  • heating value basis: energy on LHV/NCV basis, 20 MJ/kg
  • heating value basis: energy on HHV/GCV basis, 21.978 MJ/kg

Sources

Follow each source back to its primary document — that traceability is the point. How conversions work →

Sources

Learn more

HHV/GCV vs LHV/NCV Higher heating value counts the heat of condensing water vapour; lower heating value does not. The gap can be 5–20%.CO₂ vs CO₂e CO₂ is only carbon dioxide; CO₂e bundles other greenhouse gases by their warming potential. There is no conversion between them.