REALLOCATION

The REALLOCATION table shows the financial transactions agreed between two participants that are settled through the AEMO pool settlements process.

Note

The column REALLOCATION_TYPE can be used in conjunction with CREDITPARTICIPANT or DEBITPARTICIPANT to determine who submitted a reallocation.

Column Schema

REALLOCATIONID

Reallocation identifier

SQL Type: VARCHAR2(20) Polars Type: str

This column is mandatory, and a primary key.

AGREEMENTTYPE

$, (Quantity) Mwh, SWAP, CAP or FLOOR

The SQL type is VARCHAR2(10). This is actually a factor/enum, with values:

SWAP
CAP
FLOOR

This column is not mandatory.

CALENDARID

Unique ID of the calendar for which data is requested

SQL Type: VARCHAR2(30) Polars Type: str

This column is not mandatory.

CREDITPARTICIPANTID

The participant to be credited for the reallocation

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

This column is not mandatory.

CREDITREFERENCE

Optional reference detail for credit participant

SQL Type: VARCHAR2(400) Polars Type: str

This column is not mandatory.

CURRENT_STEPID

Reallocation state. One of SUBMITTED, AUTHORISED, CANCELLED.

The SQL type is VARCHAR2(20). This is actually a factor/enum, with values:

SUBMITTED
AUTHORISED
CANCELLED

This column is not mandatory.

DAYTYPE

The day type profile for which the reallocation applies over the start and end date range. Valid entries are BUSINESS, NON_BUSINESS or FLAT.

The SQL type is VARCHAR2(20). This is actually a factor/enum, with values:

BUSINESS
NON_BUSINESS
FLAT

This column is not mandatory.

DEBITPARTICIPANTID

The participant to be debited for the reallocation

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

This column is not mandatory.

DEBITREFERENCE

Optional reference detail for debit participant

SQL Type: VARCHAR2(400) Polars Type: str

This column is not mandatory.

ENDDATE

Last day of the Reallocation contract

Warning

Despite what the name suggests, this is a datetime, not a date.

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

This column is not mandatory.

Example: 2026/01/20 00:05:00

INTERVALLENGTH

The length of settlement intervals (in minutes) in the reallocation profile

SQL Type: NUMBER(3,0) Polars Type: pl.UInt16

This column is not mandatory.

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: 2026/01/20 00:05:00

REALLOCATION_TYPE

Denotes a Credit or Debit reallocation with a value of "C" or "D" respectively

The SQL type is VARCHAR2(1). This is actually a factor/enum, with values:

C
D

This column is not mandatory.

REGIONID

Region identifier, being the spot price reference node for this reallocation

For more information, see the dedicated documentation page.

The SQL type is VARCHAR2(10). This is actually a factor/enum, with values:

QLD1
VIC1
TAS1
NSW1
SA1
SNOWY1

This column is not mandatory.

STARTDATE

First day of the Reallocation contract

Warning

Despite what the name suggests, this is a datetime, not a date.

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

This column is not mandatory.

Example: 2026/01/20 00:05:00

New Data Timing

When two participants have settled through the AEMO pool settlements process

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("ENDDATE", "LASTCHANGED", "STARTDATE").str.strptime(
            pl.Datetime, dt_s_fmt
        ),
    )
    .cast(
        {
            "REALLOCATIONID": str,
            "AGREEMENTTYPE": pl.Enum(["SWAP", "CAP", "FLOOR"]),
            "CALENDARID": str,
            "CREDITPARTICIPANTID": pl.Categorical,
            "CREDITREFERENCE": str,
            "CURRENT_STEPID": pl.Enum(["SUBMITTED", "AUTHORISED", "CANCELLED"]),
            "DAYTYPE": pl.Enum(["BUSINESS", "NON_BUSINESS", "FLAT"]),
            "DEBITPARTICIPANTID": pl.Categorical,
            "DEBITREFERENCE": str,
            "INTERVALLENGTH": int,  # or pl.UInt16
            "REALLOCATION_TYPE": pl.Enum(["C", "D"]),
            "REGIONID": pl.Enum(["QLD1", "VIC1", "TAS1", "NSW1", "SA1", "SNOWY1"]),
        }
    )
    # Deduplicate
    # We want one row per ['REALLOCATIONID']
    # Tie-breaker: greatest value of ['LASTCHANGED']
    .sort(["LASTCHANGED"], descending=False)
    .unique(subset=["REALLOCATIONID"], keep="last")
)

Nemosis

This table is not yet available in Nemosis.

Availability

Visibility: Private

This table is not available in the public monthly MMSDM archive. Is is only available to registered market participants over FTP inside a VPN.

Deduplication and PDR Loader Configuration

The primary keys are:

REALLOCATIONID

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
SETCFG	REALLOCATION	1
SETCFG	REALLOCATION	2

This means that the CSV files start with metadata columns:

I,SETCFG,REALLOCATION,1,...
D,SETCFG,REALLOCATION,1,...

or

I,SETCFG,REALLOCATION,2,...
D,SETCFG,REALLOCATION,2,...

ROW_FILTER_TYPE is LASTCHANGED

Indexes

LASTCHANGED

Links

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: SETTLEMENT_CONFIG