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DISPATCHABLEUNIT

DISPATCHABLEUNIT sets out the unit name and type of each dispatchable unit in the market.

DISPATCHABLEUNIT data is public data, and is available to all participants.

Source

DISPATCHABLEUNIT pdates as new units added or names changed.

Column Schema

DUID

Dispatchable Unit Identifier

Warning

This column may contain funny characters such as / (slash) or # (hash). This may break hive-style partitioning.

For more information, see the dedicated documentation page.

SQL Type: VARCHAR2(10) Polars Type: pl.Categorical

This column is mandatory, and a primary key.

Examples:

  • ADPBA1
  • ADPBA1G
  • ADPBA1L
  • ADPMH1
  • ADPPV1
  • ADPPV2
  • ADPPV3
  • AGLHAL
  • AGLNOW1
  • AGLSITA1

DUNAME

Dispatchable Unit full description

SQL Type: VARCHAR2(20) Polars Type: str

This column is not mandatory.

Examples:

  • ACTEWAGL VPP
  • ADAP UNDER FREQ L
  • ADELAIDE DESAL BESS
  • ADELAIDE DESAL BG1
  • ADELAIDE DESAL BL1
  • ADELAIDE DESAL HYDRO
  • ADELAIDE DESAL PV1
  • ADELAIDE DESAL PV2
  • ADELAIDE DESAL PV3
  • AGG INTERRUP LOAD N1

LASTCHANGED

Last date and time record changed

For more information, see the dedicated documentation page.

SQL Type: DATE Polars Type: pl.Datetime()

This column is not mandatory.

Example: 2004/06/22 10:59:26

UNITTYPE

Identifies LOAD, GENERATOR or BIDIRECTIONAL

SQL Type: VARCHAR2(20) Polars Type: pl.Categorical

This column is not mandatory.

Examples:

  • BIDIRECTIONAL
  • GENERATOR
  • LOAD

New Data Timing

When new units are added or names are changed

Code Examples

Polars

Casting is enums, categoricals etc is not essential, but may speed up parsing. Swapping int for pl.UInt16, pl.Int32 would also speed up parsing. However some of the datatypes are inferred, so they may be wrong.

This code deduplicates for you. Deduplication is normally only required across multiple months.

This code assumes that all columns are present, which may not be true for older files.

import polars as pl
import polars.selectors as cs

# e.g. "2029/03/15 00:05:00"
dt_s_fmt = "%Y/%m/%d %H:%M:%S"

csv_paths = ["SOMEFILE.CSV", "OTHERFILE.CSV"]

lf = (
    pl.concat(
        [
            pl.scan_csv(
                csv_path,  # must be unzipped beforehand
                skip_rows=1,  # skip the header
                infer_schema=False,  # much faster
            )
            .filter(cs.by_index(0) == "D")  # drop the footer
            .select(~cs.by_index(range(4)))  # drop metadata columns
            for csv_path in csv_paths
        ],
        how="diagonal_relaxed",
    )
    .with_columns(
        pl.col("LASTCHANGED").str.strptime(pl.Datetime, dt_s_fmt),
    )
    .cast({"DUID": pl.Categorical, "DUNAME": str, "UNITTYPE": pl.Categorical})
    # Deduplicate
    # We want one row per ['DUID']
    # Tie-breaker: greatest value of ['LASTCHANGED']
    .sort(["LASTCHANGED"], descending=False)
    .unique(subset=["DUID"], keep="last")
)

Nemosis

This table is not yet available in Nemosis.

Example File

From PUBLIC_ARCHIVE_DISPATCHABLEUNIT_FILE01_202609010000.zip

DUIDDUNAMEUNITTYPELASTCHANGED
CALL_A_1CALL_A_1 CALLIDEGENERATOR2018/03/09 13:45:31
CALL_A_2CALL_A_2 CALLIDEGENERATOR2018/03/09 13:45:31
CALL_A_3CALL_A_3 CALLIDEGENERATOR2018/03/09 13:45:31
CALL_A_4CALL_A_4 CALLIDEGENERATOR2011/05/16 09:55:13
CALL_B_1CALL_B_1 CALLIDEGENERATOR2005/06/08 15:37:19
CALL_B_2CALL_B_2 CALLIDEGENERATOR2005/06/08 15:37:19
MRIDGEMRIDGE SWANBANKGENERATOR2006/05/19 11:34:07
SWAN_A_1SWAN_A_1 SWANBANKGENERATOR2006/05/26 14:18:55
SWAN_A_2SWAN_A_2 SWANBANKGENERATOR2006/05/26 14:18:55
SWAN_A_3SWAN_A_3 SWANBANKGENERATOR2006/05/26 14:18:56
SWAN_A_4SWAN_A_4 SWANBANKGENERATOR2006/05/26 14:18:56
...

CSETP.WORLDDVD_DISPATCHABLEUNITAEMOPUBLIC2026/10/0915:25:32001791523532683MONTHLY_ARCHIVE001791523532683
IPARTICIPANT_REGISTRATIONDISPATCHABLEUNIT1DUIDDUNAMEUNITTYPELASTCHANGED
DPARTICIPANT_REGISTRATIONDISPATCHABLEUNIT1CALL_A_1CALL_A_1 CALLIDEGENERATOR2018/03/09 13:45:31
DPARTICIPANT_REGISTRATIONDISPATCHABLEUNIT1CALL_A_2CALL_A_2 CALLIDEGENERATOR2018/03/09 13:45:31
DPARTICIPANT_REGISTRATIONDISPATCHABLEUNIT1CALL_A_3CALL_A_3 CALLIDEGENERATOR2018/03/09 13:45:31
DPARTICIPANT_REGISTRATIONDISPATCHABLEUNIT1CALL_A_4CALL_A_4 CALLIDEGENERATOR2011/05/16 09:55:13
DPARTICIPANT_REGISTRATIONDISPATCHABLEUNIT1CALL_B_1CALL_B_1 CALLIDEGENERATOR2005/06/08 15:37:19
DPARTICIPANT_REGISTRATIONDISPATCHABLEUNIT1CALL_B_2CALL_B_2 CALLIDEGENERATOR2005/06/08 15:37:19
DPARTICIPANT_REGISTRATIONDISPATCHABLEUNIT1MRIDGEMRIDGE SWANBANKGENERATOR2006/05/19 11:34:07
DPARTICIPANT_REGISTRATIONDISPATCHABLEUNIT1SWAN_A_1SWAN_A_1 SWANBANKGENERATOR2006/05/26 14:18:55
DPARTICIPANT_REGISTRATIONDISPATCHABLEUNIT1SWAN_A_2SWAN_A_2 SWANBANKGENERATOR2006/05/26 14:18:55
DPARTICIPANT_REGISTRATIONDISPATCHABLEUNIT1SWAN_A_3SWAN_A_3 SWANBANKGENERATOR2006/05/26 14:18:56
DPARTICIPANT_REGISTRATIONDISPATCHABLEUNIT1SWAN_A_4SWAN_A_4 SWANBANKGENERATOR2006/05/26 14:18:56
...
CEND OF REPORT1003

DUID,DUNAME,UNITTYPE,LASTCHANGED
CALL_A_1,"CALL_A_1 CALLIDE",GENERATOR,"2018/03/09 13:45:31"
CALL_A_2,"CALL_A_2 CALLIDE",GENERATOR,"2018/03/09 13:45:31"
CALL_A_3,"CALL_A_3 CALLIDE",GENERATOR,"2018/03/09 13:45:31"
CALL_A_4,"CALL_A_4 CALLIDE",GENERATOR,"2011/05/16 09:55:13"
CALL_B_1,"CALL_B_1 CALLIDE",GENERATOR,"2005/06/08 15:37:19"
CALL_B_2,"CALL_B_2 CALLIDE",GENERATOR,"2005/06/08 15:37:19"
MRIDGE,"MRIDGE SWANBANK",GENERATOR,"2006/05/19 11:34:07"
SWAN_A_1,"SWAN_A_1 SWANBANK",GENERATOR,"2006/05/26 14:18:55"
SWAN_A_2,"SWAN_A_2 SWANBANK",GENERATOR,"2006/05/26 14:18:55"
SWAN_A_3,"SWAN_A_3 SWANBANK",GENERATOR,"2006/05/26 14:18:56"
SWAN_A_4,"SWAN_A_4 SWANBANK",GENERATOR,"2006/05/26 14:18:56"
...

C,SETP.WORLD,DVD_DISPATCHABLEUNIT,AEMO,PUBLIC,2026/10/09,15:25:32,001791523532683,MONTHLY_ARCHIVE,001791523532683
I,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,DUID,DUNAME,UNITTYPE,LASTCHANGED
D,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,CALL_A_1,"CALL_A_1 CALLIDE",GENERATOR,"2018/03/09 13:45:31"
D,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,CALL_A_2,"CALL_A_2 CALLIDE",GENERATOR,"2018/03/09 13:45:31"
D,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,CALL_A_3,"CALL_A_3 CALLIDE",GENERATOR,"2018/03/09 13:45:31"
D,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,CALL_A_4,"CALL_A_4 CALLIDE",GENERATOR,"2011/05/16 09:55:13"
D,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,CALL_B_1,"CALL_B_1 CALLIDE",GENERATOR,"2005/06/08 15:37:19"
D,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,CALL_B_2,"CALL_B_2 CALLIDE",GENERATOR,"2005/06/08 15:37:19"
D,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,MRIDGE,"MRIDGE SWANBANK",GENERATOR,"2006/05/19 11:34:07"
D,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,SWAN_A_1,"SWAN_A_1 SWANBANK",GENERATOR,"2006/05/26 14:18:55"
D,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,SWAN_A_2,"SWAN_A_2 SWANBANK",GENERATOR,"2006/05/26 14:18:55"
D,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,SWAN_A_3,"SWAN_A_3 SWANBANK",GENERATOR,"2006/05/26 14:18:56"
D,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,SWAN_A_4,"SWAN_A_4 SWANBANK",GENERATOR,"2006/05/26 14:18:56"
...
C,"END OF REPORT",1003

Availability

Visibility: Public

This table is in the public monthly MMSDM archive.

I have collated the list of all those files into one place, in this CSV metadata file. (Columns year, month, url, compressed_size in bytes).

The earliest available data is month 1 of 2015. The most recent available data is month 9 of 2026.

Every month in between has a file. (No gaps.)

Data Size

Each year of data is approximately 203 KB when zipped, 2 MB as unzipped CSV.

Deduplication and PDR Loader Configuration

The primary keys are:

The transaction type is "INSERT-UPDATE", which means that you will likely see duplicate data with different values.

You should deduplicate by sorting based on LASTCHANGED, within each group of primary keys.

PDR Loader configuration is:

Report Name Report Subtype Version
PARTICIPANT_REGISTRATION DISPATCHABLEUNIT 1

This means that the CSV files start with metadata columns:

I,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,...
D,PARTICIPANT_REGISTRATION,DISPATCHABLEUNIT,1,...

ROW_FILTER_TYPE is LASTCHANGED

Indexes

This page as JSON (schema documented here, but may change)

Download a JSON Schema specification for this table.

Official AEMO schema documentation

Other Information

Package: PARTICIPANT_REGISTRATION