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OVERRIDERRP

OVERRIDERRP shows details of override price periods.

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

Source

OVERRIDERRP updates every five minutes when override prices apply for the period.

Column Schema

REGIONID

Region Identifier

Warning

Unlike most tables, this column may contain the value ALL, if the override applies to all regions at once.

For more information, see the dedicated documentation page.

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

  • QLD1

  • NSW1

  • VIC1

  • SA1

  • TAS1

  • ALL

This column is mandatory, and a primary key.

STARTDATE

Starting date of override

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: 1998/10/29 10:10:00

STARTPERIOD

Starting period of override

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

This column is mandatory, and a primary key.

Examples: 35, 280

AUTHORISEEND

Authorise End of Override

SQL Type: VARCHAR2(15) Polars Type: str

This column is not mandatory.

Examples:

  • ALANH
  • BATCH
  • BFLEMING
  • BWEBB
  • BWOOD
  • CBROWNLEE
  • CHERDEN
  • IGNAZIOR
  • JAMESH
  • PHILIPS

AUTHORISESTART

Authorise Start of Override

SQL Type: VARCHAR2(15) Polars Type: str

This column is not mandatory.

Examples:

  • ALANH
  • BATCH
  • BFLEMING
  • BWEBB
  • BWOOD
  • CBROWNLEE
  • CHERDEN
  • IGNAZIOR
  • JAMESH
  • PHILIPS

DESCRIPTION

Description of reason for override

SQL Type: VARCHAR2(128) Polars Type: str

This column is not mandatory.

Examples:

  • Bob Rigoni testing
  • Demand reduction due to maximum supportable demand and violating interconnector limits
  • Directed load shed in Victoria
  • Directed load shedding in VIC
  • Involentary load shedding
  • Involuntary Load Shedding VIC
  • Involuntary Load Shedding in SA
  • Involuntary load shedding SA Region
  • J Petteit testing
  • John Petteit testing

ENDDATE

Termination date of override

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: 1998/10/29 10:15:00

ENDPERIOD

Terminate period of override

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

This column is not mandatory.

Examples: 36, 282

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: 1998/10/29 10:07:19

RRP

Dispatch Price

For more information, see the dedicated documentation page.

SQL Type: NUMBER(15,0) Polars Type: pl.Int64

This column is not mandatory.

Examples: 5000, 16600

New Data Timing

Every five minutes when override prices apply for the period.

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("STARTDATE", "ENDDATE", "LASTCHANGED").str.strptime(
            pl.Datetime, dt_s_fmt
        ),
    )
    .cast(
        {
            "REGIONID": pl.Enum(["QLD1", "NSW1", "VIC1", "SA1", "TAS1", "ALL"]),
            "STARTPERIOD": int,  # or pl.Int16
            "AUTHORISEEND": str,
            "AUTHORISESTART": str,
            "DESCRIPTION": str,
            "ENDPERIOD": int,  # or pl.Int16
            "RRP": int,  # or pl.Int64
        }
    )
    # Deduplicate
    # We want one row per ['REGIONID', 'STARTDATE', 'STARTPERIOD']
    # Tie-breaker: greatest value of ['LASTCHANGED']
    .sort(["LASTCHANGED"], descending=False)
    .unique(subset=["REGIONID", "STARTDATE", "STARTPERIOD"], keep="last")
)

Nemosis

This table is not yet available in Nemosis.

Example File

From PUBLIC_ARCHIVE_OVERRIDERRP_FILE01_202609010000.zip

REGIONIDSTARTDATESTARTPERIODENDDATEENDPERIODRRPDESCRIPTIONAUTHORISESTARTAUTHORISEENDLASTCHANGED
QLD11998/10/29 10:10:00741998/10/29 10:15:00755000Bob Rigoni testingBWEBBBWEBB1998/10/29 10:07:19
QLD11998/10/29 10:40:00801998/10/29 10:45:00815000Bob Rigoni testingBWEBBBWEBB1998/10/29 10:08:04
QLD11998/11/13 09:30:00661998/11/13 09:45:00695000testingBWEBBBWEBB1998/11/13 09:26:56
QLD11998/11/13 09:55:00711998/11/13 10:10:00745000testingBWEBBBWEBB1998/11/13 09:54:23
SA11998/12/11 06:55:00351998/12/11 07:00:00365000John Petteit testing1998/12/11 06:49:17
NSW11998/12/11 07:00:00361998/12/11 07:05:00375000J Petteit testing1998/12/11 06:51:11
SA11999/02/04 14:30:001261999/02/04 14:55:001315000Involuntary load shedding SA Region1999/02/04 14:27:04
SA11999/10/23 12:35:001031999/10/23 13:40:001165000VtoSA interconnection broken, involuntary load shed in SA1999/10/23 13:38:46
SA11999/12/02 13:25:001131999/12/02 16:50:001545000Load shed in South Australia region, island formation1999/12/02 16:49:23
VIC12000/02/03 12:20:001002000/02/03 16:40:001525000involuntary load shedding Vic region (3/2/2000)TOMTOM2000/02/03 16:38:13
QLD12000/01/22 03:20:002802000/01/22 03:30:002825000directed wivenhoe pump 2 to off. unable to maintain hz.2000/01/22 03:29:53
...

CSETP.WORLDDVD_OVERRIDERRPAEMOPUBLIC2026/10/0915:57:20001791525440509MONTHLY_ARCHIVE001791525440509
IFORCE_MAJEUREOVERRIDERRP1REGIONIDSTARTDATESTARTPERIODENDDATEENDPERIODRRPDESCRIPTIONAUTHORISESTARTAUTHORISEENDLASTCHANGED
DFORCE_MAJEUREOVERRIDERRP1QLD11998/10/29 10:10:00741998/10/29 10:15:00755000Bob Rigoni testingBWEBBBWEBB1998/10/29 10:07:19
DFORCE_MAJEUREOVERRIDERRP1QLD11998/10/29 10:40:00801998/10/29 10:45:00815000Bob Rigoni testingBWEBBBWEBB1998/10/29 10:08:04
DFORCE_MAJEUREOVERRIDERRP1QLD11998/11/13 09:30:00661998/11/13 09:45:00695000testingBWEBBBWEBB1998/11/13 09:26:56
DFORCE_MAJEUREOVERRIDERRP1QLD11998/11/13 09:55:00711998/11/13 10:10:00745000testingBWEBBBWEBB1998/11/13 09:54:23
DFORCE_MAJEUREOVERRIDERRP1SA11998/12/11 06:55:00351998/12/11 07:00:00365000John Petteit testing1998/12/11 06:49:17
DFORCE_MAJEUREOVERRIDERRP1NSW11998/12/11 07:00:00361998/12/11 07:05:00375000J Petteit testing1998/12/11 06:51:11
DFORCE_MAJEUREOVERRIDERRP1SA11999/02/04 14:30:001261999/02/04 14:55:001315000Involuntary load shedding SA Region1999/02/04 14:27:04
DFORCE_MAJEUREOVERRIDERRP1SA11999/10/23 12:35:001031999/10/23 13:40:001165000VtoSA interconnection broken, involuntary load shed in SA1999/10/23 13:38:46
DFORCE_MAJEUREOVERRIDERRP1SA11999/12/02 13:25:001131999/12/02 16:50:001545000Load shed in South Australia region, island formation1999/12/02 16:49:23
DFORCE_MAJEUREOVERRIDERRP1VIC12000/02/03 12:20:001002000/02/03 16:40:001525000involuntary load shedding Vic region (3/2/2000)TOMTOM2000/02/03 16:38:13
DFORCE_MAJEUREOVERRIDERRP1QLD12000/01/22 03:20:002802000/01/22 03:30:002825000directed wivenhoe pump 2 to off. unable to maintain hz.2000/01/22 03:29:53
...
CEND OF REPORT32

REGIONID,STARTDATE,STARTPERIOD,ENDDATE,ENDPERIOD,RRP,DESCRIPTION,AUTHORISESTART,AUTHORISEEND,LASTCHANGED
QLD1,"1998/10/29 10:10:00",74,"1998/10/29 10:15:00",75,5000,"Bob Rigoni testing",BWEBB,BWEBB,"1998/10/29 10:07:19"
QLD1,"1998/10/29 10:40:00",80,"1998/10/29 10:45:00",81,5000,"Bob Rigoni testing",BWEBB,BWEBB,"1998/10/29 10:08:04"
QLD1,"1998/11/13 09:30:00",66,"1998/11/13 09:45:00",69,5000,testing,BWEBB,BWEBB,"1998/11/13 09:26:56"
QLD1,"1998/11/13 09:55:00",71,"1998/11/13 10:10:00",74,5000,testing,BWEBB,BWEBB,"1998/11/13 09:54:23"
SA1,"1998/12/11 06:55:00",35,"1998/12/11 07:00:00",36,5000,"John Petteit testing",,,"1998/12/11 06:49:17"
NSW1,"1998/12/11 07:00:00",36,"1998/12/11 07:05:00",37,5000,"J Petteit testing",,,"1998/12/11 06:51:11"
SA1,"1999/02/04 14:30:00",126,"1999/02/04 14:55:00",131,5000,"Involuntary load shedding SA Region",,,"1999/02/04 14:27:04"
SA1,"1999/10/23 12:35:00",103,"1999/10/23 13:40:00",116,5000,"VtoSA interconnection broken, involuntary load shed in SA",,,"1999/10/23 13:38:46"
SA1,"1999/12/02 13:25:00",113,"1999/12/02 16:50:00",154,5000,"Load shed in South Australia region, island formation",,,"1999/12/02 16:49:23"
VIC1,"2000/02/03 12:20:00",100,"2000/02/03 16:40:00",152,5000,"involuntary load shedding Vic region (3/2/2000)",TOM,TOM,"2000/02/03 16:38:13"
QLD1,"2000/01/22 03:20:00",280,"2000/01/22 03:30:00",282,5000,"directed wivenhoe pump 2 to off. unable to maintain hz.",,,"2000/01/22 03:29:53"
...

C,SETP.WORLD,DVD_OVERRIDERRP,AEMO,PUBLIC,2026/10/09,15:57:20,001791525440509,MONTHLY_ARCHIVE,001791525440509
I,FORCE_MAJEURE,OVERRIDERRP,1,REGIONID,STARTDATE,STARTPERIOD,ENDDATE,ENDPERIOD,RRP,DESCRIPTION,AUTHORISESTART,AUTHORISEEND,LASTCHANGED
D,FORCE_MAJEURE,OVERRIDERRP,1,QLD1,"1998/10/29 10:10:00",74,"1998/10/29 10:15:00",75,5000,"Bob Rigoni testing",BWEBB,BWEBB,"1998/10/29 10:07:19"
D,FORCE_MAJEURE,OVERRIDERRP,1,QLD1,"1998/10/29 10:40:00",80,"1998/10/29 10:45:00",81,5000,"Bob Rigoni testing",BWEBB,BWEBB,"1998/10/29 10:08:04"
D,FORCE_MAJEURE,OVERRIDERRP,1,QLD1,"1998/11/13 09:30:00",66,"1998/11/13 09:45:00",69,5000,testing,BWEBB,BWEBB,"1998/11/13 09:26:56"
D,FORCE_MAJEURE,OVERRIDERRP,1,QLD1,"1998/11/13 09:55:00",71,"1998/11/13 10:10:00",74,5000,testing,BWEBB,BWEBB,"1998/11/13 09:54:23"
D,FORCE_MAJEURE,OVERRIDERRP,1,SA1,"1998/12/11 06:55:00",35,"1998/12/11 07:00:00",36,5000,"John Petteit testing",,,"1998/12/11 06:49:17"
D,FORCE_MAJEURE,OVERRIDERRP,1,NSW1,"1998/12/11 07:00:00",36,"1998/12/11 07:05:00",37,5000,"J Petteit testing",,,"1998/12/11 06:51:11"
D,FORCE_MAJEURE,OVERRIDERRP,1,SA1,"1999/02/04 14:30:00",126,"1999/02/04 14:55:00",131,5000,"Involuntary load shedding SA Region",,,"1999/02/04 14:27:04"
D,FORCE_MAJEURE,OVERRIDERRP,1,SA1,"1999/10/23 12:35:00",103,"1999/10/23 13:40:00",116,5000,"VtoSA interconnection broken, involuntary load shed in SA",,,"1999/10/23 13:38:46"
D,FORCE_MAJEURE,OVERRIDERRP,1,SA1,"1999/12/02 13:25:00",113,"1999/12/02 16:50:00",154,5000,"Load shed in South Australia region, island formation",,,"1999/12/02 16:49:23"
D,FORCE_MAJEURE,OVERRIDERRP,1,VIC1,"2000/02/03 12:20:00",100,"2000/02/03 16:40:00",152,5000,"involuntary load shedding Vic region (3/2/2000)",TOM,TOM,"2000/02/03 16:38:13"
D,FORCE_MAJEURE,OVERRIDERRP,1,QLD1,"2000/01/22 03:20:00",280,"2000/01/22 03:30:00",282,5000,"directed wivenhoe pump 2 to off. unable to maintain hz.",,,"2000/01/22 03:29:53"
...
C,"END OF REPORT",32

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 20 KB when zipped, 201 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 OVERRIDERRP 1

This means that the CSV files start with metadata columns:

I,FORCE_MAJEURE,OVERRIDERRP,1,...
D,FORCE_MAJEURE,OVERRIDERRP,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: FORCE_MAJEURE