Energy data and gas qualities

From the standard volume calculation with Z-factor correction to the calculation of CO₂ emissions factor and calorific value.

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Standard volume calculation

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[Translate to English:] terranets bw Messungen

Standard volume calculation with our Z-factor correction

Compressibility factors are an important basis for correctly billing gas volumes. Because natural gas does not behave like an ideal gas due to its intermolecular interactions, compressibility factors are required for calculations of standard volume from the measured volume in the operating state.

We would be pleased to perform calculations and plausibility checks (Z-factor) as well as calculations and plausibility checks of Z-factor corrected standard volume load curves – reliably and according to the currently valid DVGW Code of Practice G 685-6 according to AGA8-92 DC.

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Our services

Setting up in the energy data management system (EDM)
Calculation and plausibility check of the compressibility factor (Z-factor)

Calculation and plausibility check of the Z-factor corrected standard volume load curve
Data transmission in MSCONS format

Calculating your CO₂ emissions factors and calorific value (Hu)

You are an operator of systems that are subject to emissions trading? In this case, you are obliged to calculate your emissions according to section 5 of the Greenhouse Gas Emissions Trading Act (German: TEHG) and based on the Monitoring Ordinance (German: MVO) and then report them to the German Emissions Trading Authority (German: DEHSt).

Monitoring methods must be described in a system-specific monitoring plan that serves as a basis for emission monitoring and reporting. Among others, the calculation factors "lower calorific value (Hu)" and "emission factor" are required to calculate the CO₂ emissions from natural gas.

We would be happy to provide you with this service: based on your gas property parameters (at least calorific value, standard density and CO₂ mass fraction) we determine the CO2 emissions factor and the lower calorific value of your gas.

Determining calculaton factors is based on the calculation procedure set out in the DVGW Code of Practice G 693. Pursuant to the Gas Cooperation Agreement you will receive the gas quality values needed for the calculation , namely calorific value, standard density and CO₂ mass fraction, from your gas grid operator on a monthly basis.

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Our services

Calculation of the lower calorific value and CO₂ emission factors according to the calculation procedure set out in the DVGW Code of Practice G 693
Monthly, annual or intra-year provision of calculation factors
Data transmission in the format agreed with you

Analysis of natural gas and accompanying substances

The composition of natural gas depends on various influencial factors and is partly subject to fluctuations - on the one hand due to its very nature, on the other hand, however, it can be influenced by various injection and control procedures in the network.

In order to analyse natural gas, years of experience and comprehensive knowledge is therefore required as well as powerful, cutting-edge measuring techniques and equipment.

We can analyse natural gas samples and their accompanying substances in our own corporate test lab in accordance with the DVGW. Take advantage of our know-how – we would be pleased to advise you.

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Our services

Taking gas samples
Official analysis of natural gas samples according to DVGW Code of Practice G 260
Analysis of natural gas samples with up to 5 % hydrogen (H₂)

Vorprüfungen Druck- und Temperatursensorik
Analyse von Schwefel (H₂S, COS und Merkaptane)

Determining extended gas properties

The composition of natural gas is subject to inherent fluctuations. Gas properties are of essential interest for customers of grid operators, in particular for industrial enterprises that use natural gas for their processes.

As downstream grid operators, you receive from us the gas quality values "calorific value, standard density and CO₂ mass fraction" according to the Gas Cooperation Agreement and the DVGW G 685. These values are calculated by us at the exit points of terranets bw using our gas quality reconstruction system (RECO system).

We are also happy to calculate thirteen further parameters within the scope of extended gas properties using our certified and approved RECO system. And we perform this service around the clock. On a monthly basis, we can transmit the data you require in a standard format as daily averages.

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Our services

Ermittlung erweiterter Gasbeschaffenheiten als Tagesmittelwerte auf Basis eines zertifizierten und zugelassenen Rekonstruktionssystem (REKO-System)
Plausibilisierung der Daten
Berechnungen auf Grundlage der gültigen Regelungen und Normen

Datenversand im MSCONS-Format
Alternativer Datenversand im xls- oder xlsx-Format

Please contact us

We are happy to help you.

Head of Telecommunications and Services

Isabel Jaksche

Email:dienstleistungen[at]terranets-bw.de
Tel.:+49 711 7812 2050

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Standard volume calculation

CO2 emissions factor

Gas analyses

Extended gas properties

Head of Telecommunications and Services

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CO₂ emissions factor