INT111 - Supply and Demand Point Constraint (SDPC)

Trigger type

Event triggered

Published

Approval of Operating Schedule (AOS)

Audience

Public

Output file name

int111_v[n]_sdpc_[p]~yyyymmddhhmiss.csv

Report purpose

This report contains information regarding any supply and demand point constraints (SDPCs) that are current in the scheduling processes used in the DTS Declared Transmission System (Victoria). Victoria’s gas transmission system, operated by AEMO.. These constraints are part of the configuration of the network that can be manually set by the AEMO Australian Energy Market Operator Schedulers and form one of the inputs to the schedule generation process.

Traders can use this information to understand the network-based restrictions that will constrain their ability to offer or withdraw gas in the market on a given day. Note these constraints can be applied intraday and reflect conditions from a point in time.

Audience notes

A report is produced each time an operational schedule (OS) or pricing schedule (PS) is approved by AEMO. Therefore, it is expected that each day there will be at least 9 of these reports issued, with any additional ad hoc schedules also triggering this report:

  • 5 being for the standard current gas day schedules

  • 3 being for the standard 1-day ahead schedules

  • 1 being for the standard 2 days ahead schedule

Content notes

Each report contains details of the SDPCs that have applied to schedules previously run:

  • on the previous gas day

  • for the current gas day and

  • for the next 2 gas days

Each SDPC has a unique identifier and applies to a single MIRN Metering Identification Reference Number. A unique number that identifies each gas meter. (both injection and withdrawal points).

Each row in the report contains details of one SDPC for one hour of the gas day, with hourly intervals commencing from the start of the gas day. That is, the first row for an SDPC relates to 06:00 AM.

This report will contain 24 rows for each SDPC for each gas day reported.

Data content

Name

Data Type

No Nulls

Primary Key

CQ

Comments

gas_date

varchar 20

True

True

N

e.g. 24 Nov 2007

ti

integer

True

True

N

1-24 Trading

mirn

varchar 10

True

False

N

ps_hourly_max_qty

integer

False

False

N

ps_hourly_min_qty

integer

False

False

N

os_hourly_max_qty

integer

False

False

N

os_hourly_min_qty

integer

False

False

N

ramp_up_constraint

integer

False

False

N

ramp_down_constraint

integer

False

False

N

schedule_response_datetime

time

True

False

N

(e.g. 30 Jun 2007 06:00:00)

ps_daily_min_qty

integer

False

False

N

ps_daily_max_qty

integer

False

False

N

os_daily_min_qty

integer

False

False

N

os_daily_max_qty

integer

False

False

N

expiration_time

timestamp

True

False

N

(e.g. 06:00:00)

sdpc_id

integer

True

True

Id of the Constraint

current_date

datetime

True

False

N

e.g. 30 June 2005 1:23:56