Emission factor from ČHMÚ

Residual Fuel Oil

Czech Republic · Well-to-use · Any year

Each kilowatt-hour of this fuel counts as 0.34 kg CO₂e: 0.279 from burning it and 0.0615 for producing it and bringing it to you (estimated).

Value per kWh, net calorific value

0.34kgCO₂e/kWh

Net calorific value · Fossil only · GWP100 · AR5

FossilBio CH₄Land useBio CO₂EN 15804 GWP-fossil

One value, for any year

ČHMÚ sets no date window, so there is no year to pick.

Reference year 2025

Estimated Summed by open-climate.ai from 2 parts, 1 of them estimated by us

Region
Czech Republic CZ
Boundary
Well-to-use
Data quality
Very lowEstimated from another country's supply chain
Licence
Open · CC BY 4.0

Where 0.34 comes from

  • Scope 10.27981.9%
  • Fuel supplyEstimatedDerived by open-climate.ai
    Scope 3, cat. 30.061518.1%
Derived by open-climate.ai

Σ 0.34: open-climate.ai adds up the two parts. ČHMÚ prints fuel combustion. open-climate.ai estimates fuel supply from other published figures.

Reporting this kilowatt-hour under the GHG Protocol

Scope 1 0.279 Scope 3, category 3 0.0615

You burn the fuel, so its combustion is your Scope 1.

Supplying the fuel is Scope 3, category 3 for whoever burns it.

CiteAPI

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 · Czech Republic · per kWh · Average

Well-to-use · Fossil only · AR5

Boundary
Well-to-use
Fuel supply and fuel combustion
GWP method
IPCC AR5, 100-year horizon
Not on the record; set from ČHMÚ's method notes
CO₂e basis
Fossil onlyFossilBio CH₄Land useBio CO₂EN 15804 GWP-fossil
Not split by gas; CO₂e only

Very low quality · Open licence · Any year

What this number covers

The path of one kilowatt-hour of this fuel, from the well to your flame. ČHMÚ gives one figure for the first three steps together.

  1. Well-to-tank0.0615Scope 3, cat. 3

    1. Extraction

      Getting the fuel out of the ground

    2. Processing

      Treating it to the quality it is sold at

    3. Transport

      Moving it to your site

  2. Your meter

    1 kWh used. The factor is per kWh measured here.

  3. Burning it

    In your boiler, furnace or engine: CO₂, with a little CH₄ and N₂O

    Scope 10.279

0.0615 + 0.279 = 0.34 per kWh

Outside this boundary

  • Making the boiler that burns it
  • Building the pipelines and the network

ČHMÚ counts the fuel, not the things built to extract, move and burn it.

Gases

ČHMÚ publishes this factor as CO₂e only, with no split by gas. The CO₂e counts fossil carbon only; biogenic CO₂, biogenic methane and land-use carbon are left out.

From ČHMÚ's record to a comparable factor

ČHMÚ 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.

You are here · the totalResidual Fuel Oil, well-to-use0.34

About this factor

Source and licence

Value
Summed by open-climate.ai from its parts
Publisher
Český hydrometeorologický ústav
Published
12 May 2026
See the source data at ČHMÚ

The values and their metadata are served in full and may be reused with credit to the publisher.

Credit it with this lineSource: Czech Hydrometeorological Institute (ČHMÚ), CC BY 4.0
A plain reading of the licence, not legal advice. The licence text prevails.

Cite this factor

Source: Czech Hydrometeorological Institute (ČHMÚ), CC BY 4.0. Normalised by open-climate.ai, https://open-climate.ai/factors/libraries/chmi/ (CC BY 4.0). https://open-climate.ai/factors/ef-chmi-tezky_topny_olej_tto-cz-kwh-well_to_use-ec8f1525/?v=efv1-88e83bb438c89c4430a9266f6eea22ff

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