MIRN STRUCTURE (VICTORIA)

Transcription

1 PREPARED BY: MARKET DEVELOPMENT DOCUMENT REF: VERSION: 2.0 DATE: 24 MAY 2010 FINAL Australian Energy Market Operator Ltd ABN NEW SOUTH WALES QUEENSLAND SOUTH AUSTRALIA VICTORIA AUSTRALIAN CAPITAL TERRITORY TASMANIA

2 Version Release History Version Date Author(s) Change /04/2005 D.McGowan Version for website publication 1.1 4/06/2007 D.McGowan Updated to accommodate Envestra s NSW allocation for QLD /04/2010 S. Monaco Ensure document conforms to standard Replace obsolete references with current references Doc Ref: v APRIL 2010 Page ii of 8

3 Executive Summary This document describes the MIRN Structure that is used in the Victorian Gas Retail Market. References to Predecessors To reflect the governance changes implemented on 1 July 2009, this document has been amended to remove references to the Victorian Energy Networks Corporation (VENCorp) and replace such references with Australian Energy Market Operator (). Where any content inadvertently refers to VENCorp it should be read as referring to. It should be noted that participant ID VENCORP remains as the participant ID for as the gas market operator in Victoria and Queensland. Doc Ref: v APRIL 2010 Page iii of 8

4 Table of Contents 1. INTRODUCTION PURPOSE AUDIENCE RELATED DOCUMENTS METER INSTALLATION REGISTRATION NUMBER (MIRN) MIRN OVERVIEW: MIRN STRUCTURE MIRN CHECKSUM MIRN ALLOCATION... 8 Doc Ref: v APRIL 2010 Page iv of 8

5 1. Introduction 1.1. Purpose This document has been prepared as a guide for new entrants to explain the MIRN structure. Whilst the document is specific in detailing the intelligence underpinning the MIRN, it is a reference guide only and not to be used as a technical design document. The GIP and associated Participant Build Packs describe the technical interfacing requirements for the Victorian Retail Gas Market. This document sets out the structure and format for MIRNs to be used in the Victorian Retail Gas Market. The successful operation of the Victorian Retail Gas Market is reliant on: Positive and reliable identification of supply points within the customer transfer process; A verifiable link between supply points and relevant metering data; and An audit trail for data collection and processing operations. The Meter Installation Registration Number (MIRN) provides a unique identifier for each supply point within the Victorian Gas Retail Market. It provides a reference against which other essential data can be linked and managed, and is crucial to the accurate management of customer transfer, supply point change control and data aggregation and transfer Audience The document has been written for business and IT personnel within the Market Participants, Distributors and Transmission System Service Providers as well as. It is expected that the audience will have a familiarity with the overall business endeavour of Gas FRC in Victoria and with the artefacts listed in the Related Documents section of this document. Doc Ref: v APRIL 2010 Page 5 of 8

6 1.3. Related Documents There are a number of related documents or artefacts that have been issued as part of Participant Build Packs and should be read in conjunction with this document. The table below defines the documents and the versions. Ref Artefact Name Version Responsible Party or Authors 1 Retail Market Procedures (Victoria) 2 Participant Build Pack 1 Process Maps 3 Participant Build Pack 1 Transaction Definition Table 4 Participant Build Pack 1 Data Element Definition 5 Guidelines for Development of a Standard for Energy Transactions in XML (asexml) as published on s website as published at o.com.au/asex ML/index.htm 6 Master MIBB Report List as published on s website 7 Participant Build Pack 2 Glossary 8 Participant Build Pack 2 Usage Guidelines 9 Participant Build Pack 3 FRC B2B System Architecture 10 Participant Build Pack 3 B2B System Interface Definitions Gas Retail Consultative Forum Victoria (GRFC-V) Gas Transaction Protocol Working Group (GTPWG) Gas Transaction Protocol Working Group (GTPWG) Gas Transaction Protocol Working Group (GTPWG) AseXML Standards Working Group (ASWG) *The GIP is published on the website. Doc Ref: v APRIL 2010 Page 6 of 8

7 2. Meter Installation Registration Number (MIRN) 2.1. MIRN Overview In order to maintain alignment with the protocols developed by the electricity industry, Victorian gas participants agreed to adopt the National Electricity Market numbering structure. Consequently NEMMCO (now ) issued the subset of NMI s starting with 53 for use by the Victorian gas industry. NMIs in this subset are referred to as MIRNs and their use was implemented as part of the FRC implementation program in October MIRNs represent a unique identifier for supply points in the Victorian Retail Gas Market MIRN Structure The Meter Identification Registration Number (MIRN) is a ten-character unique identifier used to identify a supply point, the structure of which consists of alphanumeric components that contains no spaces. The first three characters and the second last character of a MIRN contain business logic. Diagram shown below describes the structure of a MIRN. In relation to the first characters 3 characters, The first digit identifies the energy category (5 signifies gas 1 ); The second digit represents the state (3 signifies Victoria, 2 signifies NSW); and The third digit denotes the Distributor or Market Operator (0 signifies, 1 signifies Multinet Gas, 2 signifies Envestra and 3 signifies SPI Networks (gas)). Note these codes have been in effect since October Gas Market Meter State Identifier 3 Victorian meters 2 NSW meters 4 Queensland meters 5 South Australian meters 5 X N Multinet Gas 2 Envestra 3 SP AusNet 0 P Physical L Logical (Where N = 0) 1 Some CTMs (Custody Transfer Meter) start with a 2 or 3. Doc Ref: v APRIL 2010 Page 7 of 8

8 In relation to those MIRNs that administer, if the second last character is a P it signifies that the MIRN is a physical meter such as a Custody Transfer Meter (CTM) or Gas Chromatograph. If the second last character is an L it signifies that the MIRN is a logical meter. These are special cases and only exist where the third digit N is zero (signifying an MIRN) MIRN Checksum To reduce the occurrence of incorrect transfers and data entry errors, a one digit checksum has been implemented. This checksum value is in addition to the MIRN 10 character field and is always a numeric character. A general form of the algorithm used to create the MIRN checksum is: 1. Double the ASCII value of alternate digits within the MIRN beginning with the rightmost digit. 2. Add the individual digits comprising the products obtained in step 1 to each of the individual unaffected ASCII value digits in the original number. 3. Find the next highest multiple of The check digit is the value obtained in step 2 subtracted from the value obtained in step 3. If the result of this subtraction is 10 then the check digit is The check digit does not apply to CTM or Gas Chromatographs MIRN Allocation For a Distribution supply point the Distributor assigns a MIRN to each Distribution supply point in accordance with the Retail Market Procedures (Victoria). For transmission supply points, assigns a MIRN to each transmission supply point in accordance with the Retail Market Procedures (Victoria). The following table lists the range of MIRNs allocated to each organisation. Organisation Start Range End Range Multinet Gas Envestra (VIC) Envestra (NSW) SP AusNet Doc Ref: v APRIL 2010 Page 8 of 8