Gas transmission services

APA provides open access to all of our pipelines, associated facilities and the interconnected APA grid.

Across our pipeline and compression assets, we offer a range of services. These are differentiated by type (pipeline, park and loan, compression, and others) and priority (firm or interruptible). The range of APA services, with a brief description of those services, is set out below.

ServiceDescription

Firm transport

Receipt and delivery of gas at specified points up to a reserved maximum daily quantity (MDQ) on a firm basis and without interruption except as expressly permitted under contract.

Firm compression

Receipt and delivery of gas at specified points requiring an increase in pressure up to a reserved MDQ on a firm basis and without interruption except as expressly permitted under contract.

Firm park

Park of gas on specified pipelines or locations up to a reserved MDQ on a firm basis and without interruption, except as expressly permitted under contract.

Firm loan

Loan of gas from specified pipelines or locations up to a reserved MDQ on a firm basis and without interruption, except as expressly permitted under contract.

Interruptible transport

Receipt and delivery of gas at specified points, if scheduled, on an interruptible basis.

Interruptible compression

Receipt and delivery of gas at specified points requiring an increase in pressure, if scheduled, on an interruptible basis.

Interruptible park

Park of gas on specified pipelines or locations, if scheduled, on an interruptible basis.

Interruptible loan

Loan of gas from specified pipelines or locations, if scheduled, on an interruptible basis.

Redirection

Receipt and delivery of gas at points within one of APA’s facilities, where there is no additional pipeline transportation service in respect of the receipt and delivery.

In pipe trade

Receipt and delivery of gas to or from a notional point within the pipeline to facilitate trade of gas between shippers at specified points.

Operational capacity transfer

Pipeline capacity trade that transfers firm service operational MDQ between shippers.

Not all services will be available on all assets. Service availability may depend on the type of asset (pipeline or compression) and whether it has spare (uncontracted) capacity. The available services on a particular pipeline are set out in the relevant page for that pipeline.

Transport and compression services

Where an asset (pipeline or compression) has available spare capacity, APA offers firm transport and compression capacity over a number of terms:

  • Long-term – for firm capacity commitments involving a term equal to or greater than 12 months.
  • Short-term – for firm capacity commitments involving a term of less than 12 months.
  • Day-ahead – for firm capacity commitments on a day-ahead basis.
  • Within-day – for access to firm capacity within a day, without advance capacity reservation, nominated after the nomination deadline relevant to the particular asset for which the capacity is sought.

Where an asset (pipeline or compression) does not have available spare capacity to provide a particular service, APA offers interruptible capacity over the following terms:

  • Day-ahead – for access to interruptible capacity on a day ahead basis, nominated before the nomination deadline relevant to the particular asset for which the capacity is sought.
  • Within-day – for access to interruptible capacity within a day, nominated after the nomination deadline relevant to the particular asset for which the capacity is sought.

Compression may be required to transport gas between some receipt and delivery point combinations at Moomba and Wallumbilla. A matrix setting out circumstances where compression will be required can be found here.

Park and loan services

We offer park and/or loan services over the following terms:

  • Long-term – for firm park and/or loan commitments involving a term equal to or greater than 12 months.
  • Short-term – for firm park and/or loan commitments involving a term of less than 12 months.
  • Day-ahead and Within-day – for interruptible park and/or loan on a day ahead or within day basis, without advance capacity reservation.

Standard Terms and conditions

Further details of the standard terms and conditions for firm and interruptible services can be found in APA's Standard Gas Transportation Agreement (SGTA). This includes details of the priority ranking of services in relation to other services in scheduling, and in the event of curtailment.

Current tariff and terms for each asset and service can be found on the current tariffs and terms page.

APA has prepared a user access guide, setting out how prospective shippers can gain access to pipeline capacity.