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INTERCONNECTOR

INTERCONNECTOR sets out valid identifiers for each interconnector.

INTERCONNECTOR is public data, available to all participants.

Source

INTERCONNECTOR changes infrequently, usually annually.

Column Schema

INTERCONNECTORID

Unique Id of this interconnector

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

This column is mandatory, and a primary key.

Examples:

  • N-Q-MNSP1
  • NSW1-QLD1
  • NSW1-SA1
  • SNOWY1
  • T-V-MNSP1
  • V-S-MNSP1
  • V-SA
  • V-SN
  • VIC1-NSW1

DESCRIPTION

Description of interconnector

SQL Type: VARCHAR2(64) Polars Type: str

This column is not mandatory.

Examples:

  • Basslink DC Interconnector (MNSP)
  • Directlink DC Interconnection
  • MurrayLink DC Interconnector (MNSP)
  • NSW to QLD AC Interconnection - QNI
  • PEC-MI NSW to SA Interconnector
  • SNOWY1 TO NSW1
  • VIC1-NSW1 Interconnection
  • VICTORIA TO SA
  • VICTORIA TO SNOWY

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: 2004/06/11 10:43:05

REGIONFROM

Starting region of the interconnect

SQL Type: VARCHAR2(10) Polars Type: str

This column is not mandatory.

Examples:

  • NSW1
  • SNOWY1
  • TAS1
  • VIC1

REGIONTO

Ending region of the interconnect

SQL Type: VARCHAR2(10) Polars Type: str

This column is not mandatory.

Examples:

  • NSW1
  • QLD1
  • SA1
  • SNOWY1
  • VIC1

RSOID

Not used

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

This column is unused.

New Data Timing

Usually annually

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("LASTCHANGED").str.strptime(pl.Datetime, dt_s_fmt),
    )
    .cast(
        {
            "INTERCONNECTORID": pl.Categorical,
            "DESCRIPTION": str,
            "REGIONFROM": str,
            "REGIONTO": str,
            "RSOID": pl.Categorical,
        }
    )
    # Drop deprecated/unused columns
    .drop("RSOID")
    # Deduplicate
    # We want one row per ['INTERCONNECTORID']
    # Tie-breaker: greatest value of ['LASTCHANGED']
    .sort(["LASTCHANGED"], descending=False)
    .unique(subset=["INTERCONNECTORID"], keep="last")
)

Nemosis

from nemosis import dynamic_data_compiler

df = dynamic_data_compiler(
    '2024/01/01 00:00:00',
    '2024/01/31 00:00:00',
    "INTERCONNECTOR",
    "data/"
)

Nemosis only includes a subset of columns by default, as an optimisation. (i.e. the commonly used columns.) To include others:

from nemosis import defaults

defaults.table_columns["INTERCONNECTOR"] += ["DESCRIPTION", "RSOID"]
df = dynamic_data_compiler(...)

Example File

From PUBLIC_ARCHIVE_INTERCONNECTOR_FILE01_202609010000.zip

INTERCONNECTORIDREGIONFROMRSOIDREGIONTODESCRIPTIONLASTCHANGED
N-Q-MNSP1NSW1QLD1Directlink DC Interconnection2006/03/21 09:57:54
NSW1-QLD1NSW1QLD1NSW to QLD AC Interconnection - QNI2004/06/11 10:43:05
SNOWY1SNOWY1NSW1SNOWY1 TO NSW12004/06/11 10:43:05
T-V-MNSP1TAS1VIC1Basslink DC Interconnector (MNSP)2008/09/30 14:50:56
V-S-MNSP1VIC1SA1MurrayLink DC Interconnector (MNSP)2004/06/11 10:43:06
V-SAVIC1SA1VICTORIA TO SA2004/06/11 10:43:06
V-SNVIC1SNOWY1VICTORIA TO SNOWY2004/06/11 10:43:05
VIC1-NSW1VIC1NSW1VIC1-NSW1 Interconnection2008/06/18 15:53:23
NSW1-SA1NSW1SA1PEC-MI NSW to SA Interconnector2026/08/13 10:09:20

CSETP.WORLDDVD_INTERCONNECTORAEMOPUBLIC2026/10/0915:37:03001791524223178MONTHLY_ARCHIVE001791524223178
IMARKET_CONFIGINTERCONNECTOR1INTERCONNECTORIDREGIONFROMRSOIDREGIONTODESCRIPTIONLASTCHANGED
DMARKET_CONFIGINTERCONNECTOR1N-Q-MNSP1NSW1QLD1Directlink DC Interconnection2006/03/21 09:57:54
DMARKET_CONFIGINTERCONNECTOR1NSW1-QLD1NSW1QLD1NSW to QLD AC Interconnection - QNI2004/06/11 10:43:05
DMARKET_CONFIGINTERCONNECTOR1SNOWY1SNOWY1NSW1SNOWY1 TO NSW12004/06/11 10:43:05
DMARKET_CONFIGINTERCONNECTOR1T-V-MNSP1TAS1VIC1Basslink DC Interconnector (MNSP)2008/09/30 14:50:56
DMARKET_CONFIGINTERCONNECTOR1V-S-MNSP1VIC1SA1MurrayLink DC Interconnector (MNSP)2004/06/11 10:43:06
DMARKET_CONFIGINTERCONNECTOR1V-SAVIC1SA1VICTORIA TO SA2004/06/11 10:43:06
DMARKET_CONFIGINTERCONNECTOR1V-SNVIC1SNOWY1VICTORIA TO SNOWY2004/06/11 10:43:05
DMARKET_CONFIGINTERCONNECTOR1VIC1-NSW1VIC1NSW1VIC1-NSW1 Interconnection2008/06/18 15:53:23
DMARKET_CONFIGINTERCONNECTOR1NSW1-SA1NSW1SA1PEC-MI NSW to SA Interconnector2026/08/13 10:09:20
CEND OF REPORT12

INTERCONNECTORID,REGIONFROM,RSOID,REGIONTO,DESCRIPTION,LASTCHANGED
N-Q-MNSP1,NSW1,,QLD1,"Directlink DC Interconnection","2006/03/21 09:57:54"
NSW1-QLD1,NSW1,,QLD1,"NSW to QLD AC Interconnection - QNI","2004/06/11 10:43:05"
SNOWY1,SNOWY1,,NSW1,"SNOWY1 TO NSW1","2004/06/11 10:43:05"
T-V-MNSP1,TAS1,,VIC1,"Basslink DC Interconnector (MNSP)","2008/09/30 14:50:56"
V-S-MNSP1,VIC1,,SA1,"MurrayLink DC Interconnector (MNSP)","2004/06/11 10:43:06"
V-SA,VIC1,,SA1,"VICTORIA TO SA","2004/06/11 10:43:06"
V-SN,VIC1,,SNOWY1,"VICTORIA TO SNOWY","2004/06/11 10:43:05"
VIC1-NSW1,VIC1,,NSW1,"VIC1-NSW1 Interconnection","2008/06/18 15:53:23"
NSW1-SA1,NSW1,,SA1,"PEC-MI NSW to SA Interconnector","2026/08/13 10:09:20"

C,SETP.WORLD,DVD_INTERCONNECTOR,AEMO,PUBLIC,2026/10/09,15:37:03,001791524223178,MONTHLY_ARCHIVE,001791524223178
I,MARKET_CONFIG,INTERCONNECTOR,1,INTERCONNECTORID,REGIONFROM,RSOID,REGIONTO,DESCRIPTION,LASTCHANGED
D,MARKET_CONFIG,INTERCONNECTOR,1,N-Q-MNSP1,NSW1,,QLD1,"Directlink DC Interconnection","2006/03/21 09:57:54"
D,MARKET_CONFIG,INTERCONNECTOR,1,NSW1-QLD1,NSW1,,QLD1,"NSW to QLD AC Interconnection - QNI","2004/06/11 10:43:05"
D,MARKET_CONFIG,INTERCONNECTOR,1,SNOWY1,SNOWY1,,NSW1,"SNOWY1 TO NSW1","2004/06/11 10:43:05"
D,MARKET_CONFIG,INTERCONNECTOR,1,T-V-MNSP1,TAS1,,VIC1,"Basslink DC Interconnector (MNSP)","2008/09/30 14:50:56"
D,MARKET_CONFIG,INTERCONNECTOR,1,V-S-MNSP1,VIC1,,SA1,"MurrayLink DC Interconnector (MNSP)","2004/06/11 10:43:06"
D,MARKET_CONFIG,INTERCONNECTOR,1,V-SA,VIC1,,SA1,"VICTORIA TO SA","2004/06/11 10:43:06"
D,MARKET_CONFIG,INTERCONNECTOR,1,V-SN,VIC1,,SNOWY1,"VICTORIA TO SNOWY","2004/06/11 10:43:05"
D,MARKET_CONFIG,INTERCONNECTOR,1,VIC1-NSW1,VIC1,,NSW1,"VIC1-NSW1 Interconnection","2008/06/18 15:53:23"
D,MARKET_CONFIG,INTERCONNECTOR,1,NSW1-SA1,NSW1,,SA1,"PEC-MI NSW to SA Interconnector","2026/08/13 10:09:20"
C,"END OF REPORT",12

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 8 KB when zipped, 79 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
MARKET_CONFIG INTERCONNECTOR 1

This means that the CSV files start with metadata columns:

I,MARKET_CONFIG,INTERCONNECTOR,1,...
D,MARKET_CONFIG,INTERCONNECTOR,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: MARKET_CONFIG