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Emission factor from GEMIS v5.2

Gas boiler, industrial, 100%

Germany · Energy, full life cycle · Any year

Each kilowatt-hour of this fuel counts as 0.225 kg CO₂e. GEMIS gives one figure, for use in any year.

Value per kWh, net calorific value

0.225kgCO₂e/kWh

Net calorific value · Biogenic CO₂ and land use excluded · GWP100 · AR6

FossilBio CH₄Land useBio CO₂GHG Protocol and IPCC inventories

One value, for any year

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

Reference year 2020

Region
Germany DE
Boundary
Energy, full life cycle
Data quality
MediumRated by us, not by the source
Licence
Share-alike · GEMIS terms

Where 0.225 comes from

Published as one number

GEMIS prints this factor as a single figure, with no parts to add up.

Reporting this kilowatt-hour under the GHG Protocol

Scope 1 + Scope 3, categories 2 and 3 0.225

This one figure covers all three together; no split between them is given.

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

The plant and equipment behind your fuel are capital goods: Scope 3, category 2.

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 › Gaseous fossil fuels · Germany · per kWh · Average

Energy, full life cycle · Excl. biogenic CO₂ · AR6

Boundary
Energy, full life cycle
Fuel supply, fuel combustion and capital goods
GWP method
IPCC AR6, 100-year horizon
Re-weighted by open-climate.ai from GEMIS's AR5 figure of 0.225 kgCO₂e/kWh
CO₂e basis
Excl. biogenic CO₂FossilBio CH₄Land useBio CO₂GHG Protocol and IPCC inventories
Split by gas

Medium quality · Copyleft licence · Any year

What this number covers

The path of one kilowatt-hour of this fuel, from the well to your flame. GEMIS also counts its share of the plant and equipment.

  1. Well-to-tank

    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

= 0.225 per kWh

Gases

Basis: Excl. biogenic CO₂FossilBio CH₄Land useBio CO₂GHG Protocol and IPCC inventories

  • Fossil CO₂0.21997%
  • Methane (CH₄)0.005652.5%
  • Nitrous oxide (N₂O)0.001160.5%

Σ 0.219 + 0.00565 + 0.00116 = 0.225425, which GEMIS rounds to 0.225.

Each gas is converted to CO₂e with AR6 100-year warming potentials; biogenic CO₂ and land-use carbon are left out, while methane from biogenic sources is counted.

From GEMIS's record to a comparable factor

GEMIS publishes this factor as one record. Here is each field as printed and what open-climate.ai made of it.

About this factor

From GEMIS

What it is

In German
inputbezogene Wärmebereitstellung durch industriellen Gas-Kessel

What it includes

In German
Gesamter Lebenszyklus inkl. Transporte + Materialvorleistung, ohne Entsorgung. hier für inputpezogene Betrachtung, d.h. definitorischer Nutzungsgrad = 100%

Source and licence

Publisher
IINAS (International Institute for Sustainability Analysis and Strategy)
Library
GEMIS 5.2 (2025-12-01)
Published
1 December 2025
Open the record at GEMIS
GEMIS's terms of use Copyleft

Served in full. Whatever you build on it must carry the same licence.

Credit it with this lineIINAS (2025): GEMIS 5.2, iinas.org/gemis
A plain reading of the licence, not legal advice. The licence text prevails.

Cite this factor

IINAS (2025): GEMIS 5.2, iinas.org/gemis. Normalised by open-climate.ai, https://open-climate.ai/factors/libraries/gemis/ (CC BY-SA 4.0). https://open-climate.ai/factors/ef-gemis-gaskesselindustrie100-de-kwh-energy_lifecycle-da5d0c29/?v=efv1-44484b228376e89f53f828ff97ca2236

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