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MARKET_SUSPEND_REGION_SUM

Summary of Market Suspension timings

MARKET_SUSPEND is public data, so is available to all participants.

Column Schema

REGIONID

Region(s) covered by the Suspension event

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.

SUSPENSION_ID

Unique identifier for this suspension event

SQL Type: VARCHAR2(20) Polars Type: str

This column is mandatory, and a primary key.

Examples:

  • 202202181425.1
  • 202603231145.1

END_REGION_INTERVAL

Last Dispatch interval for the Suspension event for this Region

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

This column is not mandatory.

Example: 2022/02/18 16:10:00

END_SUSPENSION_INTERVAL

Last Dispatch interval for the Suspension event

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

This column is not mandatory.

Example: 2022/02/18 16:10:00

INITIAL_INTERVAL

Initial interval of the Suspension event

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

This column is not mandatory.

Example: 2022/02/18 14:25:00

LASTCHANGED

Last DateTime the Suspension was administered

For more information, see the dedicated documentation page.

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

This column is not mandatory.

Example: 2022/02/18 15:38:41

New Data Timing

Creation of market suspension

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(
            "END_REGION_INTERVAL",
            "END_SUSPENSION_INTERVAL",
            "INITIAL_INTERVAL",
            "LASTCHANGED",
        ).str.strptime(pl.Datetime, dt_s_fmt),
    )
    .cast(
        {
            "REGIONID": pl.Enum(["QLD1", "VIC1", "TAS1", "NSW1", "SA1", "SNOWY1"]),
            "SUSPENSION_ID": str,
        }
    )
    # Deduplicate
    # We want one row per ['REGIONID', 'SUSPENSION_ID']
    # Tie-breaker: greatest value of LASTCHANGED
    .sort(LASTCHANGED, descending=False)
    .unique(subset=["REGIONID", "SUSPENSION_ID"], keep="last")
)

Nemosis

This table is not yet available in Nemosis.

Example File

From PUBLIC_ARCHIVE_MARKET_SUSPEND_REGION_SUM_FILE01_202609010000.zip

SUSPENSION_IDREGIONIDINITIAL_INTERVALEND_REGION_INTERVALEND_SUSPENSION_INTERVALLASTCHANGED
202203011240.1TAS12022/03/01 12:40:002022/03/01 19:15:002022/03/01 19:15:002022/03/01 18:43:18
202303172015.1NSW12023/03/17 20:15:002023/03/17 21:10:002023/03/17 21:10:002023/03/17 20:42:02
202304221620.1VIC12023/04/22 16:20:002023/04/23 17:00:002023/04/23 17:00:002023/04/23 16:09:48
202409051355.1NSW12024/09/05 13:55:002024/09/05 15:10:002024/09/05 15:10:002024/09/06 18:20:40
202409051355.1QLD12024/09/05 13:55:002024/09/05 15:10:002024/09/05 15:10:002024/09/06 18:20:40
202409051355.1SA12024/09/05 13:55:002024/09/05 15:10:002024/09/05 15:10:002024/09/06 18:20:40
202409051355.1TAS12024/09/05 13:55:002024/09/05 15:10:002024/09/05 15:10:002024/09/06 18:20:40
202409051355.1VIC12024/09/05 13:55:002024/09/05 15:10:002024/09/05 15:10:002024/09/06 18:20:40
202206151405.1NSW12022/06/15 14:05:002022/06/24 14:00:002022/06/24 14:00:002022/06/24 10:01:55
202206151405.1QLD12022/06/15 14:05:002022/06/24 14:00:002022/06/24 14:00:002022/06/24 10:01:55
202206151405.1SA12022/06/15 14:05:002022/06/24 14:00:002022/06/24 14:00:002022/06/24 10:01:55
...

CSETP.WORLDDVD_MARKET_SUSPEND_REGION_SUMAEMOPUBLIC2026/10/0915:53:07001791525187542MONTHLY_ARCHIVE001791525187542
IFORCE_MAJEUREMARKET_SUSPEND_REGION_SUM1SUSPENSION_IDREGIONIDINITIAL_INTERVALEND_REGION_INTERVALEND_SUSPENSION_INTERVALLASTCHANGED
DFORCE_MAJEUREMARKET_SUSPEND_REGION_SUM1202203011240.1TAS12022/03/01 12:40:002022/03/01 19:15:002022/03/01 19:15:002022/03/01 18:43:18
DFORCE_MAJEUREMARKET_SUSPEND_REGION_SUM1202303172015.1NSW12023/03/17 20:15:002023/03/17 21:10:002023/03/17 21:10:002023/03/17 20:42:02
DFORCE_MAJEUREMARKET_SUSPEND_REGION_SUM1202304221620.1VIC12023/04/22 16:20:002023/04/23 17:00:002023/04/23 17:00:002023/04/23 16:09:48
DFORCE_MAJEUREMARKET_SUSPEND_REGION_SUM1202409051355.1NSW12024/09/05 13:55:002024/09/05 15:10:002024/09/05 15:10:002024/09/06 18:20:40
DFORCE_MAJEUREMARKET_SUSPEND_REGION_SUM1202409051355.1QLD12024/09/05 13:55:002024/09/05 15:10:002024/09/05 15:10:002024/09/06 18:20:40
DFORCE_MAJEUREMARKET_SUSPEND_REGION_SUM1202409051355.1SA12024/09/05 13:55:002024/09/05 15:10:002024/09/05 15:10:002024/09/06 18:20:40
DFORCE_MAJEUREMARKET_SUSPEND_REGION_SUM1202409051355.1TAS12024/09/05 13:55:002024/09/05 15:10:002024/09/05 15:10:002024/09/06 18:20:40
DFORCE_MAJEUREMARKET_SUSPEND_REGION_SUM1202409051355.1VIC12024/09/05 13:55:002024/09/05 15:10:002024/09/05 15:10:002024/09/06 18:20:40
DFORCE_MAJEUREMARKET_SUSPEND_REGION_SUM1202206151405.1NSW12022/06/15 14:05:002022/06/24 14:00:002022/06/24 14:00:002022/06/24 10:01:55
DFORCE_MAJEUREMARKET_SUSPEND_REGION_SUM1202206151405.1QLD12022/06/15 14:05:002022/06/24 14:00:002022/06/24 14:00:002022/06/24 10:01:55
DFORCE_MAJEUREMARKET_SUSPEND_REGION_SUM1202206151405.1SA12022/06/15 14:05:002022/06/24 14:00:002022/06/24 14:00:002022/06/24 10:01:55
...
CEND OF REPORT18

SUSPENSION_ID,REGIONID,INITIAL_INTERVAL,END_REGION_INTERVAL,END_SUSPENSION_INTERVAL,LASTCHANGED
202203011240.1,TAS1,"2022/03/01 12:40:00","2022/03/01 19:15:00","2022/03/01 19:15:00","2022/03/01 18:43:18"
202303172015.1,NSW1,"2023/03/17 20:15:00","2023/03/17 21:10:00","2023/03/17 21:10:00","2023/03/17 20:42:02"
202304221620.1,VIC1,"2023/04/22 16:20:00","2023/04/23 17:00:00","2023/04/23 17:00:00","2023/04/23 16:09:48"
202409051355.1,NSW1,"2024/09/05 13:55:00","2024/09/05 15:10:00","2024/09/05 15:10:00","2024/09/06 18:20:40"
202409051355.1,QLD1,"2024/09/05 13:55:00","2024/09/05 15:10:00","2024/09/05 15:10:00","2024/09/06 18:20:40"
202409051355.1,SA1,"2024/09/05 13:55:00","2024/09/05 15:10:00","2024/09/05 15:10:00","2024/09/06 18:20:40"
202409051355.1,TAS1,"2024/09/05 13:55:00","2024/09/05 15:10:00","2024/09/05 15:10:00","2024/09/06 18:20:40"
202409051355.1,VIC1,"2024/09/05 13:55:00","2024/09/05 15:10:00","2024/09/05 15:10:00","2024/09/06 18:20:40"
202206151405.1,NSW1,"2022/06/15 14:05:00","2022/06/24 14:00:00","2022/06/24 14:00:00","2022/06/24 10:01:55"
202206151405.1,QLD1,"2022/06/15 14:05:00","2022/06/24 14:00:00","2022/06/24 14:00:00","2022/06/24 10:01:55"
202206151405.1,SA1,"2022/06/15 14:05:00","2022/06/24 14:00:00","2022/06/24 14:00:00","2022/06/24 10:01:55"
...

C,SETP.WORLD,DVD_MARKET_SUSPEND_REGION_SUM,AEMO,PUBLIC,2026/10/09,15:53:07,001791525187542,MONTHLY_ARCHIVE,001791525187542
I,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,SUSPENSION_ID,REGIONID,INITIAL_INTERVAL,END_REGION_INTERVAL,END_SUSPENSION_INTERVAL,LASTCHANGED
D,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,202203011240.1,TAS1,"2022/03/01 12:40:00","2022/03/01 19:15:00","2022/03/01 19:15:00","2022/03/01 18:43:18"
D,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,202303172015.1,NSW1,"2023/03/17 20:15:00","2023/03/17 21:10:00","2023/03/17 21:10:00","2023/03/17 20:42:02"
D,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,202304221620.1,VIC1,"2023/04/22 16:20:00","2023/04/23 17:00:00","2023/04/23 17:00:00","2023/04/23 16:09:48"
D,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,202409051355.1,NSW1,"2024/09/05 13:55:00","2024/09/05 15:10:00","2024/09/05 15:10:00","2024/09/06 18:20:40"
D,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,202409051355.1,QLD1,"2024/09/05 13:55:00","2024/09/05 15:10:00","2024/09/05 15:10:00","2024/09/06 18:20:40"
D,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,202409051355.1,SA1,"2024/09/05 13:55:00","2024/09/05 15:10:00","2024/09/05 15:10:00","2024/09/06 18:20:40"
D,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,202409051355.1,TAS1,"2024/09/05 13:55:00","2024/09/05 15:10:00","2024/09/05 15:10:00","2024/09/06 18:20:40"
D,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,202409051355.1,VIC1,"2024/09/05 13:55:00","2024/09/05 15:10:00","2024/09/05 15:10:00","2024/09/06 18:20:40"
D,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,202206151405.1,NSW1,"2022/06/15 14:05:00","2022/06/24 14:00:00","2022/06/24 14:00:00","2022/06/24 10:01:55"
D,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,202206151405.1,QLD1,"2022/06/15 14:05:00","2022/06/24 14:00:00","2022/06/24 14:00:00","2022/06/24 10:01:55"
D,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,202206151405.1,SA1,"2022/06/15 14:05:00","2022/06/24 14:00:00","2022/06/24 14:00:00","2022/06/24 10:01:55"
...
C,"END OF REPORT",18

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 8 of 2024. 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 8 KB when zipped, 83 KB 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
FORCE_MAJEURE MARKET_SUSPEND_REGION_SUM 1

This means that the CSV files start with metadata columns:

I,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,...
D,FORCE_MAJEURE,MARKET_SUSPEND_REGION_SUM,1,...

ROW_FILTER_TYPE is LASTCHANGED

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: FORCE_MAJEURE