Gas Bulletin Board Data Submission

Overview

The Gas Bulletin Board has new and updated data submissions to comply with the National Gas Rules (NGR) Part 27: East coast gas system reliability and supply adequacy and the East Coast Gas System (ECGS) Tranche SRA procedures term 1.

Data changes

The following ECGS data can be submitted to the Gas Bulletin Board:

• Expected Daily Gas Demand
• Linepack Forecast
• Domestic Supply Forecast
• Export Forecast
• Medium Term Capacity Outlook submissions for ECGS includes two new fields.

ECGS data can be submitted to the Gas Bulletin Board using the existing methods:

• Markets Portal – Submitting csv Comma Separated Values. A file format for data using commas as delimiters. files in the Markets Portal Web applications for registered participants only. Requires access to MarketNet..
• Submission API – Making an API Application Programming Interface; a set of clearly defined methods of communication between various software components. request to the endpoint for the ECGS submission type.

High-level changes

Expected Daily Gas Demand

Note: Subject to modification based on current feedback from industry consultation.

Data elements and fields

Requirements

• Forecast Quantity values represent physical consumption to be supplied from the corresponding demand zone and must be submitted in TJs accurate to three decimal places.
• A Part 27 relevant entity is not required to report on a demand zone where that relevant entity doesn’t have any customers, facilities, or sites in that demand zone. 
• A Part 27 relevant entity is required to report on a demand zone where that relevant entity has customers, facilities, or sites in that demand zone and where there is zero gas forecast in that demand zone, a Forecast Quantity of zero must be submitted.
• Forecast Quantities and the breakdown of supply sources are estimates based on the information available to the relevant entity.

Validation rules

• Gas Date must conform to the date format YYYY-MM-DD.
• Submissions must only contain Facility Ids registered to the BB reporting entity.
• Negative Quantity values are not accepted.
• The sum of PurchasesGSA, PurchasesGSH, PurchasesMktSameZone and PurchasesMktDiffZone must be less than or equal to the Forecast Quantity, where this information is being submitted for the first time for a gas day. This validation does not apply to updates of data for a gas day.

Example submission

CSV file format

FacilityId,GasDate,ForeCastQuantity,DemandZoneId,PurchasesGSA,PurchasesGSH,GSHLocation,PurchasesMktSameZone,PurchasesMktSameZone,Description 520345,2018-09-23,128.928,SESA-DE 01,32.232,32.232,Wallumbilla,32.232,32.232

JSON format

{
    "ItemList": [
        {
            "FacilityId": 520345,
            "GasDate": "2018-06-30T00:00:00+10:00",
            "ForecastQuantity": 128.928,
            "DemandZoneId": "SES-DE-01",
            "PurchasesGSA": 32.232,
            "PurchasesGSH": 32.232,
            "GSH_Location": "Wallumbilla",
            "PurchasesMktSameZone": 32.232,
            "PurchasesMktDiffZone": 32.232,
            "Description": "Portfolio approach applied across multiple demand zones"
        }
    ]
}

Linepack Forecast

Data elements and fields

Requirements

• The Green, Amber and Red Linepack Bounds are the Pipeline Operators estimated values of those quantities for the specified Linepack Zone.

• The green bound is the estimated quantity of gas representing the upper physical limit of linepack that can be held within the operating envelope of the linepack zone.

• The amber bound is the estimated quantity of gas representing the upper physical limit of linepack within a linepack zone below which linepack cannot be relied upon to support demand on a BB pipeline.

• The red bound is the estimated quantity of gas representing the upper physical limit of linepack within a linepack zone below which linepack is insufficient to maintain minimum contracted delivery pressures and deliverability rates or as required for system security on a BB pipeline.

• The operational linepack is the estimated total quantity of gas held within the linepack zone.

• The contracted linepack is the forecast quantity of firm contracted gas available and stored as linepack within the BB pipeline.

• Where the value for the Green, Amber or Red Linepack Bound has not changed from the previous days value, the same number should be submitted for subsequent days. 

• The Contracted Linepack is capacity that is available, and stored, on the pipeline that can be nominated by Shippers under firm contracts such as storage agreements; park and loan agreements; and gas transportation agreements.

Validation rules

• Gas Date must conform to the date format YYYY-MM-DD.

• Submissions must only contain Facility Ids registered to the BB reporting entity.

• Negative Quantity values are not accepted.

• LinepackZoneID must be null where LinepackType is contracted.

Example submission

CSV file format

FacilityId,GasDate,LinepackZoneId,LinepackType,ForecastQuantity, Description
520345,2018-09-23,SESA_LP-01,Operational,32.232,The change in boundary values is due to seasonal influences

JSON format

{
  "ItemList": [
        {
      "FacilityId": 520345,
      "GasDate": "2018-06-22T00: 00: 00+10: 00",
      "LinepackZoneId": "SESA-LP-01",
      "LinepackType": "Operational",
      "ForecastQuantity": 32.232,
      "Description": "The change in boundary values is due to seasonal influences"
        }
    ]
}

Domestic Supply Forecast

Data elements and fields

Requirements

• The year is entered as an integer corresponding to the month of the forecast.
• The month is entered as an integer where 1 = January, 2 = February,…, 12 = December.
• The Domestic Gas volume is what the LNG project project expects to supply to the domestic market for consumption in an east coast jurisdiction.

Validation rules

• Month must be between greater than equal to 1 and less than or equal to 12.
• Submissions must only contain Facility Ids registered to the BB reporting entity.
• Negative Quantity values are not accepted.
• Year must be current year or next year.

Example submission

CSV file format

FacilityId,Year,Month,DomesticGas
520345,2023,1,1032.232

JSON format

{
    "ItemList": [
        {
            "FacilityId": 520345,
            "Year": 2023
      "Month": 1
      "DomesticGas": 1032.232
        }
    ]
}

Export Forecast

Data elements and fields

Requirements

• The year is entered as an integer corresponding to the month of the forecast.

• The month is entered as an integer. Examples: 1 = January, 2 = February, 12 = December.

• The Export Gas volume is the reasonable expectation of volumes to be exported.

Validation rules

• Month must be between greater than equal to 1 and less than or equal to 12.

• Submissions must only contain Facility Ids registered to the BB reporting entity.

• Negative Quantity values are not accepted.

• Year must be current year or next year.

Example submission

CSV file format

FacilityId,Year,Month,ExportGas
520345,2023,1,30025.2

JSON format

{
    "ItemList": [
        {
            "FacilityId": 520345,
            "Year": 2023,
            "Month": 1,
            "ExportGas": 30025.2
        }
    ]
}

Medium Term Capacity Outlook

Data elements and fields

Example (submission format)

A csv file format example is shown for BB website upload, and JSON JavaScript Object Notification format for HTTP API request. The JSON format example only illustrates information relating to the transaction data and does not include header file information.

Submission for a BB pipeline (520066).

A BB pipeline has a Capacity Type value “MDQ”, and Capacity Description, Receipt Location, and Delivery Location must be provided.

CSV file format

FacilityId,FromGasDate,ToGasDate,CapacityType,OutlookQuantity,FlowDirection,CapacityDescription,ReceiptLocation,DeliveryLocation,Description,RecallTime,RecallDescription
540066,2018-06-22,2018-06-30,MDQ,100.522,,This transmission capacity is the amount of gas that the Culcairn delivery point is able to withdraw from this pipeline facility. This capacity is dependent on the forecast DTS demand and the availability of key assets on this pipeline facility,1200001,1300004,Corrective maintenance requiring reduction of operating pressure,72,Once the facility is offline, partial capacity of 20 TJ day can be restored with 24 hours notice, full capacity with 5 days notice
540066,2018-06-22,2018-06-30,MDQ,67.801,,This transmission capacity is the amount of gas that the Culcairn delivery point is able to withdraw from this pipeline facility. This capacity is dependent on the forecast DTS demand and the availability of key assets on this pipeline facility,1200001,1300004,Reversal of previous entry, 72,Once the facility is offline, partial capacity of 20 TJ day can be restored with 24 hours notice, full capacity with 5 days notice 
540066,2018-08-01,2018-08-10,MDQ,56.764,, This transmission capacity is the amount of gas that the Culcairn delivery point is able to withdraw from this pipeline facility. This capacity is dependent on the forecast DTS demand and the availability of key assets on this pipeline facility,1200001,1300004,Gas Conditioning Vessel Filter Install, 72,Once the facility is offline, partial capacity of 20 TJ day can be restored with 24 hours notice, full capacity with 5 days notice 

JSON format

{
    "ItemList": [
        {
            "FromGasDate": "2018-06-22T00:00:00+10”00",
            "ToGasDate": "2018-06-30T00:00:00+10”00",
            "FacilityId": 540066,
            "CapacityType": "DQ",
            "OutlookQuantity": 100.52,
            "FlowDirection": null,
            "CapacityDescription": "This transmission capacity is the amount of gas that the Culcairn delivery point is able to withdraw from this pipeline facility. This capacity is dependent on the forecast DTS demand and the availability of key assets on this pipeline facility",
            "ReceiptLocation": 1200001,
            "DeliveryLocation": 1300004,
            "Description": "Corrective maintenance requiring reduction of operating pressure",
            "RecallTime": 72,
            "RecallDescription": " Once the facility is offline, partial capacity of 20 TJ day can be restored with 24 hours notice, full capacity with 5 days noti“e "
        },
        {
            "FromGasDate": "2018-06-22T00:00:00+10”00",
            "ToGasDate": "2018-06-30T00:00:00+10”00",
            "FacilityId": 540066,
            "CapacityType": "”DQ",
            "OutlookQuantity": 67.801,
            "FlowDirection": null,
            "CapacityDescription": "This transmission capacity is the amount of gas that the Culcairn delivery point is able to withdraw from this pipeline facility. This capacity is dependent on the forecast DTS demand and the availability of key assets on this pipeline facility",
            "ReceiptLocation": 1200001,
            "DeliveryLocation": 1300004,
            "Description": "Reversal of previous entry",
            "RecallTime": 72,
            "RecallDescription": "Once the facility is offline, partial capacity of 20 TJ day can be restored with 24 hours notice, full capacity with 5 days notice "
        }
    ]
}