SET_RECOVERY_ENERGY

Settlements substitution recovery energy used

Column Schema

PARTICIPANTID

Unique identifier for the participant

For more information, see the dedicated documentation page.

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

This column is mandatory, and a primary key.

PERIODID

Trading interval identifier, with Period 1 being the first TI for the calendar day, i.e interval ending 00:05 for 5MS or 00:30 for 30MS.

SQL Type: NUMBER(3,0) Polars Type: pl.Int16

This column is mandatory, and a primary key.

REGIONID

Unique Identifier for the Region to which the TNI belongs on this settlement date

For more information, see the dedicated documentation page.

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

• QLD1

• VIC1

• TAS1

• NSW1

• SA1

• SNOWY1

This column is mandatory, and a primary key.

SETTLEMENTDATE

Settlement date

Warning

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

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

This column is mandatory, and a primary key.

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

SETTLEMENTRUNNO

Settlement run number

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

This column is mandatory, and a primary key.

ACE_MWH_ACTUAL

Actual ACE MWh Value for the Recovery Calculation. NULL Value for Settlement date prior to the IESS rule effective date

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

ACE_MWH_MPFEX_ACTUAL

The Actual ACE MWh Value excluding the MPF Connection Points for the Recovery Calculation. This is used only in FCAS Residue Recovery Calculation. NULL Value for Settlement date prior to the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

ACE_MWH_MPFEX_SUBSTITUTE

The Substitute ACE MWh Value excluding the MPF Connection Points for the Recovery Calculation. This is used only in FCAS Residue Recovery Calculation. There is no substitute demand post IESS Rule Change. Hence this column will have same value as ACE_MWh_MPFExActual. NULL Value for Settlement date prior to the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

ACE_MWH_SUBSTITUTE

The Substitute ACE MWh Value for the Recovery Calculation. There is no substitute demand post IESS Rule Change. Hence this column will have same value as ACE_MWh_Actual. NULL Value for Settlement date prior to the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

ASOE_MWH_ACTUAL

The Actual ASOE MWh Value for the Recovery Calculation. NULL Value for Settlement date prior to the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

CUSTOMERENERGYACTUAL

Actual Customer Demand. NULL for Settlement dates post the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

CUSTOMERENERGYMPFEXACTUAL

Actual Customer Demand excluding TNIs that have a causer pays MPF. NULL for Settlement dates post the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

CUSTOMERENERGYMPFEXSUBSTITUTE

Substitute Customer Demand excluding TNIs that have a causer pays MPF. NULL for Settlement dates post the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

CUSTOMERENERGYSUBSTITUTE

Substitute Customer Demand. NULL for Settlement dates post the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

GENERATORENERGYACTUAL

Actual Generator Output. NULL for Settlement dates post the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

REGION_ACE_MWH_ACTUAL

The Region total of Actual ACE MWh Value. NULL Value for Settlement date prior to the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

REGION_ACE_MWH_MPFEX_ACTUAL

The Region total of Actual ACE MWh Value excluding the MPF Connection Points. NULL Value for Settlement date prior to the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

REGION_ACE_MWH_MPFEX_SUBST

The Region total of Substitute ACE MWh Value excluding the MPF Connection Points . NULL Value for Settlement date prior to the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

REGION_ACE_MWH_SUBST

The Region total of Substitute ACE MWh Value. NULL Value for Settlement date prior to the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

REGION_ASOE_MWH_ACTUAL

The Region total of Actual ASOE MWh Value. NULL Value for Settlement date prior to the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

REGIONCUSTENERGYACTUAL

Region Total of Actual Customer Demand. NULL for Settlement dates post the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

REGIONCUSTENERGYSUBST

Region Total of Substitute Customer Demand. NULL for Settlement dates post the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

REGIONGENENERGYACTUAL

Region Total of Actual Generator Output. NULL for Settlement dates post the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is not mandatory.

REGIONCUSTENERGYMPFEXACTUAL

Region Total of Actual Customer Demand excluding TNIs that have a causer pays MPF. NULL for Settlement dates post the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is unused.

REGIONCUSTENERGYMPFEXSUBST

Region total of Substitute Customer Demand excluding TNIs that have a causer pays MPF. NULL for Settlement dates post the IESS rule effective date.

SQL Type: NUMBER(18,8) Polars Type: pl.Float64

This column is unused.

New Data Timing

Daily Billing Run & Posting a PRELIM/FINAL and REVISE Billing Run

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("SETTLEMENTDATE").str.strptime(pl.Datetime, dt_s_fmt),
    )
    .cast(
        {
            "PARTICIPANTID": pl.Categorical,
            "PERIODID": int,  # or pl.Int16
            "REGIONID": pl.Enum(["QLD1", "VIC1", "TAS1", "NSW1", "SA1", "SNOWY1"]),
            "SETTLEMENTRUNNO": int,  # or pl.UInt16
            "ACE_MWH_ACTUAL": pl.Float64,
            "ACE_MWH_MPFEX_ACTUAL": pl.Float64,
            "ACE_MWH_MPFEX_SUBSTITUTE": pl.Float64,
            "ACE_MWH_SUBSTITUTE": pl.Float64,
            "ASOE_MWH_ACTUAL": pl.Float64,
            "CUSTOMERENERGYACTUAL": pl.Float64,
            "CUSTOMERENERGYMPFEXACTUAL": pl.Float64,
            "CUSTOMERENERGYMPFEXSUBSTITUTE": pl.Float64,
            "CUSTOMERENERGYSUBSTITUTE": pl.Float64,
            "GENERATORENERGYACTUAL": pl.Float64,
            "REGION_ACE_MWH_ACTUAL": pl.Float64,
            "REGION_ACE_MWH_MPFEX_ACTUAL": pl.Float64,
            "REGION_ACE_MWH_MPFEX_SUBST": pl.Float64,
            "REGION_ACE_MWH_SUBST": pl.Float64,
            "REGION_ASOE_MWH_ACTUAL": pl.Float64,
            "REGIONCUSTENERGYACTUAL": pl.Float64,
            "REGIONCUSTENERGYSUBST": pl.Float64,
            "REGIONGENENERGYACTUAL": pl.Float64,
            "REGIONCUSTENERGYMPFEXACTUAL": pl.Float64,
            "REGIONCUSTENERGYMPFEXSUBST": pl.Float64,
        }
    )
    # Drop deprecated/unused columns
    .drop("REGIONCUSTENERGYMPFEXACTUAL", "REGIONCUSTENERGYMPFEXSUBST")
    # Deduplicate
    # We want one row per ['PARTICIPANTID', 'PERIODID', 'REGIONID', 'SETTLEMENTDATE', 'SETTLEMENTRUNNO']
    .unique(
        subset=[
            "PARTICIPANTID",
            "PERIODID",
            "REGIONID",
            "SETTLEMENTDATE",
            "SETTLEMENTRUNNO",
        ],
        keep="any",
    )
)

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:

• PARTICIPANTID

• PERIODID

• REGIONID

• SETTLEMENTDATE

• SETTLEMENTRUNNO

The transaction type is "insert", which means that you will usually not see duplicate data. If you do, you can deduplicate based on the primary keys, without sorting first. Rows from different files with the same primary keys should have the same values.

PDR Loader configuration is:

Report Name	Report Subtype	Version
SETTLEMENTS	RECOVERY_ENERGY	2

This means that the CSV files start with metadata columns:

I,SETTLEMENTS,RECOVERY_ENERGY,2,...
D,SETTLEMENTS,RECOVERY_ENERGY,2,...

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_DATA

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