STPASA_FNM_DUIDAVAILABILITY

STPASA_FNM_DUIDAVAILABILITY shows Available Capacity, PASA Availability and given Recall Period for all scheduled

Column Schema

DUID

NEM 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(20) Polars Type: pl.Categorical

This column is mandatory, and a primary key.

Example: W/HOE#2

INTERVAL_DATETIME

End date time of the interval

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

This column is mandatory, and a primary key.

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

RUN_DATETIME

Unique Timestamp Identifier for this run, identified by the first half hour ended interval of the run

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

This column is mandatory, and a primary key.

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

BID_OFFERDATETIME

Date Time that the energy bid was received

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

This column is not mandatory.

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

BID_TRADINGDATE

Trading Date of the energy bid

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

GENERATION_MAX_AVAILABILITY

Available Capacity for a scheduled generating unit, semi-scheduled generating unit, BDU (Gen side), WDR or MNSP

SQL Type: NUMBER(12,3) Polars Type: pl.Float64

This column is not mandatory.

GENERATION_PASA_AVAILABILITY

PASA Availability for a scheduled generating unit, BDU (Gen side), WDR or MNSP. Null for a semi-scheduled generating unit (MW)

SQL Type: NUMBER(12,3) Polars Type: pl.Float64

This column is not mandatory.

GENERATION_RECALL_PERIOD

Recall Period associated with the PASA Availability for a scheduled generating unit, BDU (Gen side), WDR or MNSP. Null for a semi-scheduled generating unit (Hours)

SQL Type: NUMBER(8,3) Polars Type: pl.Float64

This column is not mandatory.

LASTCHANGED

Date time this record was created

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

LOAD_MAX_AVAILABILITY

Available Capacity for a scheduled load or BDU (Load side) (MW)

SQL Type: NUMBER(12,3) Polars Type: pl.Float64

This column is not mandatory.

LOAD_PASA_AVAILABILITY

PASA Availability for a scheduled load or BDU (Load side) (MW)

SQL Type: NUMBER(12,3) Polars Type: pl.Float64

This column is not mandatory.

LOAD_RECALL_PERIOD

Recall Period associated with the PASA Availability for a scheduled load or BDU (Load side) (Hours)

SQL Type: NUMBER(8,3) Polars Type: pl.Float64

This column is not mandatory.

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(
            "INTERVAL_DATETIME",
            "RUN_DATETIME",
            "BID_OFFERDATETIME",
            "BID_TRADINGDATE",
            "LASTCHANGED",
        ).str.strptime(pl.Datetime, dt_s_fmt),
    )
    .cast(
        {
            "DUID": pl.Categorical,
            "GENERATION_MAX_AVAILABILITY": pl.Float64,
            "GENERATION_PASA_AVAILABILITY": pl.Float64,
            "GENERATION_RECALL_PERIOD": pl.Float64,
            "LOAD_MAX_AVAILABILITY": pl.Float64,
            "LOAD_PASA_AVAILABILITY": pl.Float64,
            "LOAD_RECALL_PERIOD": pl.Float64,
        }
    )
    # Deduplicate
    # We want one row per ['DUID', 'INTERVAL_DATETIME', 'RUN_DATETIME']
    # Tie-breaker: greatest value of LASTCHANGED
    .sort(LASTCHANGED, descending=False)
    .unique(subset=["DUID", "INTERVAL_DATETIME", "RUN_DATETIME"], keep="last")
)

Nemosis

This table is not yet available in Nemosis.

Availability

AEMO's documentation states that this table's visibility is "Public". However, it is not available in the public monthly MMSDM archive. AEMO probably call this public because it is available to all market participants over private FTP.

There is a chance that is is still public to non-participants. It may only be available for some months; or (rarely) it may be available in a non-standard location.

Deduplication and PDR Loader Configuration

The primary keys are:

• DUID

• INTERVAL_DATETIME

• RUN_DATETIME

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
STPASA	FNM_DUIDAVAILABILITY	1

This means that the CSV files start with metadata columns:

I,STPASA,FNM_DUIDAVAILABILITY,1,...
D,STPASA,FNM_DUIDAVAILABILITY,1,...

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: STPASA_SOLUTION

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