Emission factor from SEMARNAT
Electric power generation, transmission and distribution - Dry gas for import
Mexico · Well-to-use · Any year
Each kilowatt-hour of this fuel counts as 0.236 kg CO₂e: 0.202 from burning it and 0.0335 for producing it and bringing it to you (estimated).
Value per kWh, net calorific value
0.236kgCO₂e/kWh
Net calorific value · Biogenic CO₂ and land use excluded · GWP100 · AR5
FossilBio CH₄Land useBio CO₂GHG Protocol and IPCC inventoriesOne value, for any year
SEMARNAT sets no date window, so there is no year to pick.
Reference year 2025
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
- Mexico MX
- Boundary
- Well-to-use
- Data quality
- Very lowEstimated from another country's supply chain
- Licence
- Open · SEMARNAT terms
Where 0.236 comes from
- Scope 10.20285.8%
- 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. 30.033514.2%
Σ 0.236: open-climate.ai adds up the two parts. SEMARNAT prints fuel combustion. open-climate.ai estimates fuel supply from other published figures.
Reporting this kilowatt-hour under the GHG Protocol
Scope 1 0.202 Scope 3, category 3 0.0335
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 › Gaseous fossil fuels · Mexico · per kWh · 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 SEMARNAT'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
Burning it, and getting it to you
Combustion is almost all CO₂. Methane and nitrous oxide are there too, too small to see at this scale, so they are drawn again below, 1000 times larger.
- CombustionScope 10.202
- Well-to-tankScope 3, cat. 30.0335
- CH₄0.000101
- N₂O0.0000954
| Part | Gas | kgCO₂e/kWh | Share | Scope |
|---|---|---|---|---|
| Combustion | CO₂ | 0.20196 | 85.7% | Scope 1 |
| Combustion | CH₄ | 0.0001008 | <0.1% | Scope 1 |
| Combustion | N₂O | 0.0000954 | <0.1% | Scope 1 |
| Combustion, all gases | CO₂e | 0.202156 | 85.8% | Scope 1 |
| Well-to-tank | CO₂e | 0.0334975 | 14.2% | Scope 3, cat. 3 |
| Total, well-to-use | CO₂e | 0.235654 | 100% | Both |
What this number covers
The path of one kilowatt-hour of this fuel, from the well to your flame. SEMARNAT gives one figure for the first three steps together.
Well-to-tank0.0335Scope 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 meter
1 kWh used. The factor is per kWh measured here.
Burning it
In your boiler, furnace or engine: CO₂, with a little CH₄ and N₂O
Scope 10.202
0.0335 + 0.202 = 0.236 per kWh
Outside this boundary
- Making the boiler that burns it
- Building the pipelines and the network
SEMARNAT counts the fuel, not the things built to extract, move and burn it.
Gases in the combustion part
0.202Basis: Excl. biogenic CO₂Biogenic CO₂ and land-use change are left out; fossil CO₂, the other greenhouse gases and methane from biogenic sources are counted. Learn moreFossilBio CH₄Land useBio CO₂GHG Protocol and IPCC inventories
- Fossil CO₂0.20299.9%
- Methane (CH₄)0.000101
- Nitrous oxide (N₂O)0.0000954
Σ 0.202 + 0.000101 + 0.0000954 = 0.202.
Each gas is converted to CO₂e with AR5 100-year warming potentials; biogenic CO₂ and land-use carbon are left out, while methane from biogenic sources is counted.
The well-to-tank part is published as CO₂e only.
From SEMARNAT's record to a comparable factor
SEMARNAT 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
- SEMARNAT (Mexico)
- Library
- SEMARNAT v9
- Published
- 31 March 2025
The values and their metadata are served in full and may be reused with credit to the publisher.
Cite this factor
Calculadora de emisiones para el Registro Nacional de Emisiones (RENE), versión 9 (2025). SEMARNAT, Gobierno de México. Hoja 'Ecuaciones y FE'. Normalised by open-climate.ai, https://open-climate.ai/factors/libraries/semarnat/ (CC BY 4.0). https://open-climate.ai/factors/ef-semarnat-generacion_transmision_y-mx-kwh-well_to_use-bde5e5fd/?v=efv1-898c02f25de2a3208e4555a9e1e06e1f
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