Gas quality for MR stations

The dataset consists of the gas quality values: Gross Calorific Values, Wobbe Index, Normal Density, and Methane Number for the delivered natural gas from the transmission grid to each meter and regulator stations in Denmark.

The values listed are for informational purposes only and are not suited for settlement purposes. Though Energinet consider the numbers to be true, we cannot guarantee the accuracy of the values. Energinet has neither verified nor approved the information.

The information can be auto validated by the user with the validation rules written for each factor in Meta Data.

The described gas quality is not necessarily the gas quality that will be delivered to the consumers, since upgraded biogas can enter at the distribution level.


Hour UTC

Description

A date and time (interval), shown in UTC time zone, where the values are valid. 00:00 o\u2019clock is the first hour of a given day interval 00:00 - 00:59 and 01:00 covers the second hour (interval) of the day and so forth. Please note: The naming is based on the length of the interval of the finest grain of the resolution.

Comment

Please note that the format shown in the example applies to data download as JSON, XML or fetched through the API and is in accordance with the ISO 8601 standard. The format is slightly different when it is shown on screen or downloaded manually as CSV or XLSX. This is mainly due to readability and consideration for Excel users.

In preview (in the GUI) all timestamps are shown as (display convention) YYYY-MM-DD hh:mmZ e.g. 2017-07-14 08:00Z. The Z will remind viewers that this is UTC.

In download (CSV and XLSX) the date time are exported as YYYY-MM-DD hh:mm e.g. 2017-07-14 08:00. That is without the \u201cT\u201d and the \u201cZ\u201d and the seconds. Excel will recognize it as date-time. The user must remember the convention about time zones.

In download (JSON and XML) the full format is used YYYY-MM-DDThh:mmZ e.g. 2017-07-14T08:00Z.

Name

HourUTC

Type

datetime

Unit
Size

17

Example

2017-07-14T08:00Z

Format
Property constraint
Validation rules

Always full hours, i.e. minutes are 00

Hour DK

Description

A date and time (interval), shown in Danish time zone, where the values are valid. 00:00 o\u2019clock is the first hour of a given day, interval 00:00 - 00:59, and 01:00 covers the second hour period (interval) of the day and so forth.

Comment

On one normal day there will be 24 intervals.

When daylight saving times shifts there will be either 23 or 25 intervals.

Please note that the format shown in the example applies to data download as JSON, XML or fetched through the API and is in accordance with the ISO 8601 standard. The format is slightly different when it is shown on screen or downloaded manually as CSV or XLSX. This is mainly due to readability and consideration for Excel users.

In preview (in the GUI) all timestamps are shown as (display convention) YYYY-MM-DD hh:mm e.g. 2017-07-14 08:00. Please note that is no time zone indicator, showning that this is local (Danish) time.

In download (CSV and XLSX) the date time are exported as YYYY-MM-DD hh:mm e.g. 2017-07-14 08:00. That is without the \u201cT\u201d and the seconds. Excel will recognize it as date-time. The user must remember that this is local (Danish) time.

In download (JSON and XML) the format used is YYYY-MM-DDThh:mm e.g. 2017-07-14T08:00.

Name

HourDK

Type

datetime

Unit
Size

17

Example

2017-07-14T08:00

Format
Property constraint
Validation rules

Always full hours, i.e. minutes are 00

MR Station

Description

Meter and regulator stations that deliver gas from transmission to distribution grids.

Comment
Name

MRStation

Type

string

Unit
Size

30

Example

Herning or Torslunde

Format
Property constraint
Validation rules

Gross Calorific Value

Description

A term describing the amount of heat developed by combustion of one cubic metre of gas at constant pressure when the gas and air for the combustion have a temperature of 25\u00b0C, the combustion products being brought to that temperature and the water formed by the combustion being present in liquid state. The reference conditions for normal cubic metres are 0\u00b0C and 1 atm.

Comment
Name

GrossCalorificValue-MJ_per_Nm3

Type

number

Unit

MJ/Nm\u00b3

Size

9.4

Example

43.8149

Format

([0-9]*[,])[0-9][0-9][0-9][0-9]

Property constraint
Validation rules

[35:55]

Gross Calorific Value

Description

A term describing the amount of heat developed by combustion of one cubic metre of gas at constant pressure when the gas and air for the combustion have a temperature of 25\u00b0C, the combustion products being brought to that temperature and the water formed by the combustion being present in liquid state. The reference conditions for normal cubic metres are 0\u00b0C and 1 atm.

Comment
Name

GrossCalorificValue-kWh_per_Nm3

Type

number

Unit

kWh/Nm\u00b3

Size

9.4

Example

12.1708

Format

([0-9]*[,])[0-9][0-9][0-9][0-9]

Property constraint
Validation rules

[9.7;15.3]

Wobbe Index

Description

The Wobbe index offers information about the heating effect a burner is exposed to during combustion of a fuel. The greater the Wobbe index, the greater the heating effect and thereby the greater the load on the burner. The load on a burner is thus directly proportional to the Wobbe index. Different gases with the same Wobbe index will impose the same load on the burner.

Comment
Name

WobbeIndex-MJ_per_Nm3

Type

number

Unit

MJ/Nm\u00b3

Size

9.4

Example

54.8543

Format

([0-9]*[,])[0-9][0-9][0-9][0-9]

Property constraint
Validation rules

[45;60]

Wobbe Index

Description

The Wobbe index offers information about the heating effect a burner is exposed to during combustion of a fuel. The greater the Wobbe index, the greater the heating effect and thereby the greater the load on the burner. The load on a burner is thus directly proportional to the Wobbe index. Different gases with the same Wobbe index will impose the same load on the burner.

Comment
Name

WobbeIndex-kWh_per_Nm3

Type

number

Unit

kWh/Nm\u00b3

Size

9.4

Example

15.2373

Format

([0-9]*[,])[0-9][0-9][0-9][0-9]

Property constraint
Validation rules

[12.5;16.7]

Normal Density

Description

Normal density is the mass of a normal cubic meter of gas. The reference conditions for normal cubic metres are 0\u00b0C and 1 atm.

Name

NormalDensity

Type

number

Unit

kg/Nm\u00b3

Size

9.4

Example

0.8241

Format

([0-9]*[,])[0-9][0-9][0-9][0-9]

Property constraint
Validation rules

[0.5;1]

Methane Number

Description

A methane number characterises the gas’s knock tendency as a fuel for gas engines. It can be compared to the octane number for petrol.

Comment

Per definition pure methane has a methane number of 100 and pure hydrogen a methane number of 0. A content of higher hydrocarbons than methane reduces the methane number while the CO2 content increases the methane number.

Currently not available

Name

MethaneNumber

Type

number

Unit

Number

Size

3.1

Example

71

Format

([0-9]*[,])[0-9]

Property constraint
Validation rules

[50;120]