Operational Market Data
Note that all price data is exclusive of GST.
Current Trading Interval Price and Demand Graphs
Graphs of real time trading (30 minute) price and demand data covering yesterday, today and tomorrow. These graphs incorporate predispatch data, using a vertical line through the graph to indicate the separation of actual from forecast data. A separate graph is provided for each region, and graph data is downloadable in simple csv file format.
Current Dispatch Interval Price and Demand Graphs
Graphs of real time data covering dispatch (5 minute) price and demand for yesterday and today. One graph per region is provided. Graph data is downloadable in simple CSV file format.
Aggregated Price and Demand Data Files
These files provide price and demand data by region, cumulated by month. They are in simple CSV format and the data in them can be easily graphed using standard desktop applications. The data dates back to the start of the NEM, 13 December 1998.
Aggregated Price and Demand Data - Current Month
Aggregated Price and Demand Data - Historical
Average Price Tables
Tables containing: average daily price and peak price, average monthly price and peak price and average annual price and peak price.
CSP/CSC Trial Settlement data
Files are provided for every statement posted covering dates where the CSP/CSC (Constraint Support Pricing/Constraint Support Contact) Trial is to be applied.
Snowy Constraint List for CSP-CSC Trial
NEMMCO has published the list of constraints related to the CSP/CSC Trial in the Snowy Region commencing on 1 October 2005.
Weekly Market Review Bulletin
The bulletin is produced in the form of online newsletter, but the data used to generate the bulletin is also available in csv file format.
7 DAY OUTLOOK & MEDIUM TERM OUTLOOK
7 Day Forecast
The PASA processes provide forecast information on the supply / demand balance in the electricity market. PASA stands for Projected Assessment of System Adequacy. The short term PASA public report contains information on every half-hour for the next seven days. NEMMCO has extracted from the public report relevant data concerning the forecast peak period in each region of the NEM.
Medium Term Outlook
The MT PASA process is run at least once a week and provides a reserve forecast for the two year period from the coming Sunday. The graphs provide a summary of the latest MT PASA results for the next twelve months for QLD, NSW, VIC/SA combined and TAS.
In accordance with the Rules definition of "PASA availability" the MT PASA process only considers the availability of generation that can be made available within 24 hours. In some circumstances there can be plant that is available in slightly longer than 24 hours that is not included in the MT PASA assessment but can still make a contribution to the system reserves.
Market Notices are issued through the Market Management System. They are updated in real time. Market notices are used to notify market participants of events that impact on the market such as: advance notice of Low Reserve Conditions, status of market systems, overconstrained dispatch, price adjustments, constraints, market directions, market interventions, market suspensions. All requests for further information about market notices should be directed to NEMMCO InfoCentre: 1300 361 011.
See also:
Network Outage Schedule
The Network Outage Schedule lists the planned network outages for work on the transmission system. The schedule contains all out of service work and any secondary bookings forecast to cause a constraint on the dispatch process.
NEMMCO Transmission Equipment Ratings
This file is provided to assist participants in the understanding of parameters associated with transmission equipment ratings published by NEMMCO.
Ancillary Service Payments
Weekly aggregated settlements data for ancillary service payments in each interconnected region.
Ancillary Services Market Causer Pays Data
The recovery of payments for Regulation Services is based upon the 'causer pays' methodology. Under this methodology the response of measured generators and loads to frequency deviations, is monitored and used to determine a series of causer pays factors.
METERING & SETTLEMENTS DATA
Retail Transfer Statistical Data
Retail transfer statistical data contains details about the number of consumer transfers that are registered in NEMMCO's systems. Data is available against a number of different variables, including by jurisdiction. Data is provided on a daily resolution, updated each month.
MSATS Change Request Statistical Data
MSATS Change Request Statistical Data contains information on the numbers of change requests submitted to MSATS per month. The information provided is the aggregated number of change requests for the total market submitted per month by change reason code.
Reserve Contract Recovery
These files contain data to allow market participants to reconcile their Reserve Contract recovery charges and is produced for preliminary and final settlement statements only.
Regional Summary Reports
Regional settlements summaries. Information contained in each report includes: energy sent out, energy purchased, energy imported and exported between regions, import and export surpluses, excess generation, reserve trading, market intervention compensation, administered price compensation, settlement surplus accounts and total regional ancillary services payments.
SRA Negative Settlement Residue Reconciliation
To assist participants in reconciling the recovery of Negative Settlement Residues and SRA Proceeds, a detailed and summary report are provided for each quarterly auction settlement after 2006Q4.
System Security Direction Compensation Recovery
The file is only produced to support a Statement which has an SSD transaction included.
The NEM Metrology Procedure requires the calculation of a Net System Load profile (NSLP) for each of the distribution network areas in VIC, NSW, SA & QLD, and a Controlled Load Profile (CLP) for each distribution network in NSW & SA and two CLPs for the ENERGEX distribution network in QLD.
MARKET MANAGEMENT SYSTEM DATA SETS
Market Management System (MMS) csv files
The following is a selection of files extracted from the MMS. Data is provided in comma delimited flat file format to enable access to a range of market data. Data covered by these files includes:
- dispatch
- trading
- predispatch
- 5 minute predispatch
- daily aggregated dispatch
- non-scheduled generation data
- historical demand
- short term PASA
- medium term PASA
- daily prices file
|
- yesterday's bids
- settlement residue auction
- market network service provider bids
- market suspension default pricing schedule
- adjusted prices
- volume weighted FCAS prices
- legacy dispatch
- legacy predispatch
|
MMS Data Model
The MMS Data Model is a logical data model provided and supported by NEMMCO for participants operating in the wholesale electricity market.
It is versioned and updated in line with the Wholesale Market release process which normally operates on a six monthly basis.
Disclaimer
This data is provided for information only and is not intended for commercial use. NEMMCO does not guarantee the accuracy of the data or its availability at all times.
