Each litre of this fuel counts as 1.7 kg CO₂e: 1.52 from burning it and 0.179 for producing it and bringing it to you (estimated).
Value for any year
1.7kgCO₂e/L
Biogenic CO₂ and land use excluded · GWP100 · AR5
FossilBio CH₄Land useBio CO₂GHG Protocol and IPCC inventoriesOne value, for any year
BAFU sets no date window, so there is no year to pick.
Reference year 2026
EstimatedAn estimate by open-climate.ai, not a number the publisher printed. Where a fuel publisher prints combustion only, we add the supply chain before the burn (well-to-tank), computed by one stated rule from the publisher's own combustion value and a published supply-chain ratio. Learn more Summed by open-climate.ai from 2 parts, 1 of them estimated by us
- Region
- Switzerland CH
- Boundary
- Well-to-use
- Data quality
- Very lowEstimated from another country's supply chain
- Licence
- Open · BAFU terms
Where 1.7 comes from
- Scope 11.5289.5%
- Fuel supplyEstimatedAn estimate by open-climate.ai, not a number the publisher printed. Where a fuel publisher prints combustion only, we add the supply chain before the burn (well-to-tank), computed by one stated rule from the publisher's own combustion value and a published supply-chain ratio. Learn moreDerived by open-climate.aiScope 3, cat. 30.17910.5%
Σ 1.7: open-climate.ai adds up the two parts. BAFU prints fuel combustion. open-climate.ai estimates fuel supply from other published figures.
Reporting this litre under the GHG Protocol
Scope 1 1.52 Scope 3, category 3 0.179
You burn the fuel, so its combustion is your Scope 1.
Supplying the fuel is Scope 3, category 3 for whoever burns it.
The factor, standardised
Every factor on open-climate.ai answers the same questions in the same words, whatever the publisher. Open any ⓘ for the definition.
Fuels › Liquid fossil fuels · Switzerland · per L · Generic
Well-to-use · Excl. biogenic CO₂ · AR5
- BoundaryWell-to-useOne unit of energy as consumed, priced from the well to the point of use: the well-to-tank chain plus the burn for a fuel; generation, its well-to-tank and the transmission and distribution losses for a delivered carrier (electricity, steam or hot water, chilled water). Learn more
- Well-to-use
- Fuel supply and fuel combustion
- GWP methodWhich IPCC assessment report's warming potentials convert each gas to CO₂e, and over how many years the warming is counted (GWP100: 100 years). Learn more
- IPCC AR5, 100-year horizon
- Not on the record; set from BAFU's method notes
- CO₂e basisWhich carbon the CO₂e counts. Fossil only leaves out biogenic methane, land-use change and biogenic CO₂; excl. biogenic CO₂ counts biogenic methane but not the other two; net total counts every pool, net of removals. The same activity on two bases is two different numbers. Learn more
- Excl. biogenic CO₂FossilBio CH₄Land useBio CO₂GHG Protocol and IPCC inventories
- Not split by gas; CO₂e only
Very low quality · Open licence · Any year
What this number covers
The path of one litre of this fuel, from the well to your flame. BAFU gives one figure for the first three steps together.
Well-to-tank0.179Scope 3, cat. 3
Extraction
Getting the fuel out of the ground
Processing
Treating it to the quality it is sold at
Transport
Moving it to your site
Your record
1 L in your records. The factor is per L.
Burning it
In your boiler, furnace or engine: CO₂, with a little CH₄ and N₂O
Scope 11.52
0.179 + 1.52 = 1.7 per L
Outside this boundary
- Making the boiler that burns it
- Building the pipelines and the network
BAFU counts the fuel, not the things built to extract, move and burn it.
Gases
BAFU publishes this factor as CO₂e only, with no split by gas. The CO₂e leaves biogenic CO₂ and land-use carbon out; methane from biogenic sources is counted.
From BAFU's record to a comparable factor
BAFU publishes one of the two parts; open-climate.ai estimated the others and added them all up to this total. Here is each field as printed and what open-climate.ai made of it.
The total and its parts
Each part has its own page. Use a part on its own when you report Scope 1 and Scope 3 separately; never add a part to the total.
About this factor
Source and licence
- Value
- Summed by open-climate.ai from its parts
- Publisher
- Bundesamt für Umwelt BAFU
- Library
- BAFU 01-2026
- Published
- 22 January 2026
The values and their metadata are served in full and may be reused with credit to the publisher.
Cite this factor
Bundesamt für Umwelt BAFU, Faktenblatt CO2-Emissionsfaktoren des Treibhausgasinventars der Schweiz, Januar 2026. Normalised by open-climate.ai, https://open-climate.ai/factors/libraries/bafu_ch/ (CC BY 4.0). https://open-climate.ai/factors/ef-bafuch-propane-ch-l-well_to_use-957f77d4/?v=efv1-307ec9fcf839d9e796b17b5fe3baf7b9
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