• Stakeholder consultation
  • About AEMO
  • Careers and Training
  • Media Centre
  • Contact us
  • Market Notices
    • Stakeholder consultation
    • About AEMO
    • Careers and Training
    • Media Centre
    • Contact us
    • Market Notices
  • Australian Energy Market Operator

    Australian Energy Market Operator Australian Energy Market Operator
    • Electricity
      • AEMO operates Australia's National Electricity Market (NEM), the interconnected power system in Australia’s eastern and south-eastern seaboard, and the Wholesale Electricity Market (WEM) and power system in Western Australia.
      • National Electricity Market
        • Data dashboard
        • Data
        • Five Minute Settlement
        • Participant information
        • Network connections
        • Security and reliability
        • Emergency management
        • Settlements and payments
        • Planning and forecasting
        • Power of Choice
        • Retail and metering
        • Events and reports
      • Wholesale Electricity Market (WA)
        • Data dashboard
        • Data
        • Compliance and audit
        • Participant information
        • Security and reliability
        • Settlements and prudential monitoring
        • Planning and forecasting
        • Reserve capacity mechanism
        • Dispatch and market notices
        • Procedures
        • Archive Section
      • IT Systems
        • NEM
        • IT change and release management
        • aseXML Standards
    • Gas
      • AEMO operates gas retail markets in New South Wales and the Australian Capital Territory, Queensland, South Australia, Victoria, and Western Australia. AEMO also operates wholesale gas markets in south-eastern Australia, those being the Declared Wholesale Gas Market in Victoria (DWGM), the Short Term Trading Market in Adelaide, Brisbane and Sydney (STTM), and the Gas Supply Hub (GSH), whose trading locations are based at Wallumbilla in Queensland, and Moomba in South Australia. AEMO also operates the Natural Gas Services Bulletin Board (GBB), and is system operator of the Victorian Gas Declared Transmission System. AEMO is also responsible for Gas Services Information functions in Western Australia.
      • Declared Wholesale Gas Market
        • Data dashboard
        • Data
        • Market operations
        • Participant Information
        • Victorian gas operations
        • Settlements and payments
        • Policies and procedures
        • Market audit reports
        • Market notices
      • Short Term Trading Market
        • Data dashboard
        • Data
        • Participant information
        • Market operations
        • Settlements and payments
        • Policies and procedures
        • Market audit reports
        • Market notices
      • Gas Supply Hubs
        • Data dashboard
        • Data
        • Participant information
        • Market operations
        • Settlements and payments
      • National planning and forecasting
        • National Gas Forecasting Report
        • 2017 Gas Statement of Opportunities
        • Victorian Gas Planning Report
        • WA Gas Statement of Opportunities
      • Gas Retail Markets
        • Data
        • Participant information
        • Market procedures
        • Market audit reports
      • Pipeline Capacity Trading
      • WA Gas Services Information
        • GSI participant information
        • GSI procedures
        • GSI Compliance and Audit
      • Emergency management
        • National role
        • Victorian role
      • Natural Gas Services Bulletin Board
      • Western Australia Gas Bulletin Board
      • IT systems
        • IT change and release management
        • User Guide to MIBB Reports
        • aseXML Standards
    • About AEMO
    • Glossary of terms
  • Share this page
  • Glossary of terms

  • In this section
    • In this section
      About AEMO
      • Our Vision, Mission, and Values
      • Board and governance
      • Our Executive Leadership Team
      • About the industry
      • Expert Advisory Panel
      • Energy market budget and fees
      • Annual Report
      • AEMO History
      • Glossary of terms
  • The energy industry can be a complicated sector to understand for those who are new to it. To help your knowledge of industry terms, AEMO has collated this list of common measures, acronyms, and abbreviations.

    Acronyms/abbreviations

    Acronym/abbreviation Expanded name
    ABARE

    Australian Bureau of Agricultural and Resource Economics

    AC

    Alternating current

    ACCC

    Australian Competition and Consumer Commission

    ADL

    Average Daily Load

    AEMC

    Australian Energy Market Commission

    AEMO

    Australian Energy Market Operator

    AER

    Australian Energy Regulator

    AEST

    Australian Eastern Standard Time

    AGC

    Automatic Generation Control

    AGE

    Adjusted Gross Energy

    AIR

    Annual Interconnector Review

    AMI

    Advanced Metering Infrastructure

    ANTS

    Annual National Transmission Statement

    APLNG

    Australia Pacific LNG

    APR

    Annual Planning Review

    ASIC

    Australian Securities Investment Commission

    AWEFS

    Australian Wind Energy Forecasting System

    B2B

    Business to Business

    BMP

    Basic Meter Profile

    BMRG

    Business-to-Business and Market Settlement and Transfer Solutions Reference Group

    CAF

    Change Assessment Form

    CATS

    Customer Administration and Transfer Solution

    CCGT Combined Cycle Gas Turbine
    CfD

    Contract for Difference

    CGP

    Carpentaria Gas Pipeline

    CIF

    Change Implementation Form

    CIR

    Congestion Information Resource

    CLP

    Controlled Load Profile

    COAG

    Council of Australian Governments

    COB

    Close of Business

    CPI

    Consumer Price Index

    CPRS

    Carbon Pollution Reduction Scheme

    CSV

    Comma Separated Value

    CT

    Current Transformer

    DB

    Distribution Business

    DC

    Direct Current

    DI

    Dispatch Interval

    DLF

    Distribution Loss Factor

    DMS

    Dispute Management System

    DNSP

    Distribution Network Service Provider

    DPRG

    Dispatch and Pricing Reference Group

    DRP

    Dispute Resolution Panel

    DTS

    Declared Transmission System (Victoria)

    Dispatcher Timing Simulator

    DUFG

    Distribution Unaccounted For Gas

    DUOS

    Distribution Use of System Charge

    DWGM

    Declared Wholesale Gas Market (Victoria)

    EAAP

    Energy Adequacy Assessment Projection

    EDR

    Economic Demonstrated Resources

    EGP

    Eastern Gas Pipeline

    EHV

    Extra High Voltage

    EMAS

    Enhanced Metering Administration System

    EMS

    Energy Management System

    EMMS Energy Market Management System
    EN

    Embedded network

    ENLR

    Embedded Network Local Retailer

    EoD

    End of Day (gas)

    EoD LP

    End of Day Line Pack

    ERIG

    Electricity Reform Implementation Group (reported to COAG 2007)

    ESI

    Electricity Supply Industry

    ESOO

    Electricity Statement of Opportunities

    EUR

    Estimated ultimate recovery

    ETS

    Emissions Trading Scheme

    FCAS

    Frequency Control Ancillary Services

    FRC

    Full Retail Contestability

    Full Retail Competition

    FRMP

    Financially Responsible Market Participant

    FTP

    File Transfer Protocol

    GBB

    Gas Bulletin Board

    GDP

    Gross Domestic Product

    GELF

    Generator Energy Limitation Framework

    GGAS

    Greenhouse Gas Abatement Scheme

    GHG

    Greenhouse gas

    GLNG

    Gladstone LNG

    GP

    Government Liaison Panel

    GPG

    Gas powered generation

    Gas-fired Power Generator

    GRCF

    Gas Retail Consultative Forum

    GWCF

    Gas Wholesale Consultative Forum

    GSOO

    Gas Statement of Opportunities

    GSP

    Gross State Product

    HV

    High Voltage

    HVAC

    High Voltage Alternating Current

    HVDC

    High Voltage Direct Current

    IGCC

    Integrated Gasification Combined Cycle

    IOA

    Interconnection Operating Agreement

    IRPC

    Inter Regional Planning Committee

    IRSR

    Inter Regional Settlement Residue

    ITT

    Invitation to Tender

    JPB

    Jurisdictional Planning Body

    KPI

    Key Performance Indicator

    LF

    Loss Factor

    LFRG

    Load Forecasting Reference Group

    LMP

    Longford to Melbourne Pipeline

    LNG

    Liquefied Natural Gas

    LNSP

    Local Network Service Provider

    LOR

    Lack of Reserve

    LP

    Linear Program

    LPA

    Linepack Account

    LR

    Local Retailer

    LRC

    Low Reserve Condition

    LRET

    Large-scale Renewable Energy Target

    LRMC

    Long-Run Marginal Cost

    LV

    Low Voltage

    MAMP

    Metering Asset Management Plan

    MAPS

    Moomba to Adelaide Pipeline

    MAS

    Metering Administration System

    MCE

    Ministerial Council on Energy

    Market Clearing Engine

    MCL

    Maximum Credit Limit

    MD

    Maximum Demand

    MDA

    Metering Data Agent

    MDFF

    Meter Data File Format

    MDM

    Meter Data Management

    MDP

    Meter Data Provider (collect, process and transfer data)

    MDQ

    Maximum Daily Quantity

    MFP

    Market Floor Price

    MIBB

    Market Information Bulletin Board

    MILP

    Mixed Integer Linear Programming

    MIRN

    Metering Identification Reference Number

    MLF

    Marginal Loss Factor

    MoU

    Memorandum of Understanding

    MML

    Market Minutes Lost

    MMS

    Market Management Systems

    MNSP

    Market Network Service Provider

    MOS

    Market Operator Service

    MP

    Metering Provider

    MPB

    Metering Provider (provide, install, maintain)

    MPC

    Metering Provider (data collection)

    Market Price Cap

    MRET

    Mandated Renewable Energy Target

    MRIM

    Manually Read Interval Meter

    MRL

    Minimum Reserve Level

    MSATS

    Market Settlement and Transfer Solutions

    MSOR

    Market and System Operations Rules

    MSP

    Moomba to Sydney Pipeline

    MTPASA

    Medium Term Projected Assessment of System Adequacy

    NA

    Network Application

    NCAS

    Network Control Ancillary Services

    NDSC

    National Dispatch and Security Centre

    NECA

    National Electricity Code Administrator Limited

    NEL

    National Electricity Law

    NEM

    National Electricity Market

    NEMDE

    NEM Dispatch Engine (previously SPD)

    NEMMCO

    National Electricity Market Management Company Limited

    NEMnet

    National Electricity Market participant network

    NEMSATC

    NEM Settlements and Transfer Committee

    NEMW-CF

    National Electricity Market Wholesale Consultative Forum

    NEO

    National Electricity Objective

    NER

    National Electricity Rules

    NGATS

    NSW Gas Abatement Scheme

    NGERAC

    National Gas Emergency Response Advisory Committee

    NGF

    National Generators Forum

    NGL

    National Gas Law

    NGR National Gas Rules
    NMI

    National Metering Identifier

    NMNS

    Non-Market Non-Scheduled generating unit

    NMS

    Non-Market Scheduled generating unit

    NOS

    Network Outage Scheduler

    NQGP

    North Queensland Gas Pipeline

    NRF

    National Retailers Forum

    NRNSP

    Non Registered Network Service Provider

    NSA

    Network Support Agreement

    NSL

    Net System Load

    NSLP

    Net System Load Profile

    NSP

    Network Service Provider

    NSRD

    Next Scheduled Read Date

    NTC

    Network Tariff Code

    NTP

    National Transmission Planner

    NTNDP

    National Transmission Network Development Plan

    OCD

    Over-Constrained Dispatch

    OCGT

    Open Cycle Gas Turbine

    OPDMS

    Operations and Planning Data Management System

    PASA

    Projected Assessment of System Adequacy

    PI

    Participant Interface

    PF

    Power Factor

    POC Power of Choice
    POE

    Probability of Exceedance

    PV

    Photovoltaic

    QCLNG

    Queensland Curtis LNG

    QGP

    Queensland Gas Pipeline

    QNI

    Queensland – New South Wales Interconnector

    RBA

    Reserve Bank of Australia

    RBP

    Roma to Brisbane Pipeline

    RCM Reserve Capacity Mechanism
    RERT

    Reliability and Emergency Reserve Trader

    RET

    Renewable Energy Target

    RIEMNS

    Review of Integration of Energy Market and Network Services

    ROC

    Rate of Change

    ROLR

    Retailer of Last Resort

    RGUL

    Rapid Generator Unit Loading

    RGUU

    Rapid Generator Unit Unloading

    RP

    Responsible Person

    RPAS

    Reactive Power Ancillary Services

    RRN

    Regional Reference Node

    RRP

    Regional Reference Price

    RTP

    Retail Transfer Procedure

    RTS

    Return to Service

    SCADA

    Supervisory Control and Data Acquisition

    SCI

    Statement of Corporate Intent

    SDPC

    Supply and Demand Points Constraints

    SEA Gas

    South East Australia Gas Pipeline

    SFE

    Sydney Futures Exchange

    SLR

    Service Level Requirements

    SOMMS

    System Outlook for Market Management Systems

    SOO

    Statement of Opportunities

    SPD

    Scheduling Pricing and Dispatch (now NEMDE)

    SRA

    Settlement Residue Auction

    SRAS

    System Restart Ancillary Service

    STPASA

    Short Term Projected Assessment of System Adequacy

    STTM

    Short Term Trading Market (SA/NSW Gas wholesale market)

    SWP

    South West Pipeline

    SWQP

    South West Queensland Pipeline

    TA

    Trading Amount

    TGP

    Tasmanian Gas Pipeline

    THD

    Total Harmonic Distortion

    TI

    Trading Interval

    TLF

    Transmission Loss Factor

    TNI

    Transmission Node Identifier

    TNSP

    Transmission Network Service Provider

    TUOS

    Transmission Use of System Charge

    UAFG

    Unaccounted For Gas

    UGS

    Underground Gas Storage

    UIGF

    Unconstrained Intermittent Generation Forecast

    UMCP

    Unmetered Connection Point

    USE

    Unserved Energy

    VAPR

    Victorian Annual Planning Report

    VCR

    Value of Customer Reliability

    VGPR

    Victorian Gas Planning Report

    VoLL

    Value of Lost Load

    VPX

    Victorian Power Exchange

    V-SA

    Victoria to South Australia Interconnector

    VT

    Voltage Transformer

    WEM Wholesale Electricity Market (WA)
    WIGS

    Wholesale, interconnector, generator or sample (NMI classifications)

    WTS

    Western Transmission System

    Units of measure

    Abbreviation Unit of measure
    CDD

    Cooling degree days

    DD

    Degree days

    EDD

    Effective degree days

    GJ

    Gigajoules

    GW

    Gigawatts

    GWh

    Gigawatt hours

    HDD

    Heating degree days

    Hz

    Hertz (frequency)

    kV

    Kilovolts

    kVA

    Kilovolt amperes

    KW

    Kilowatts

    KWh

    Kilowatt hours

    Mtpa

    Million tonnes per annum

    MVA

    Megavolt amperes

    MVAr

    Megavolt amperes reactive

    MW

    Megawatts

    MWh

    Megawatt hours

    PJ

    Petajoules

    Pje

    Petajoules equivalent

    TJ

    Terajoules

    TW

    Terrawatts

    TWh

    Terawatt hours

    V

    Volts

    Var

    Volt-ampere reative

    W

    Watt

    • Electricity
    • Gas
    • Stakeholder consultation
    • About AEMO
    • National Electricity Market
    • Wholesale Electricity Market (WA)
    • IT Systems
    • Declared Wholesale Gas Market
    • Short Term Trading Market
    • Gas Supply Hubs
    • Natural Gas Services Bulletin Board
    • Western Australia Gas Bulletin Board
    • WA Gas Services Information
    • Gas Retail Markets
    • Emergency management
    • IT systems
    • Industry forums and working groups
    • Consultations
    • Data and information plan
    • Our Vision, Mission, and Values
    • Board and governance
    • Our Executive Leadership Team
    • About the industry
    • AEMO History
    • Glossary of terms
      • Careers and Training
      • Media Centre
      • Contact us
      • © 2018 AEMO
      • Privacy and Legal Notices
      • Site by Adelphi Digital
      • Return to top