Data is provided in comma delimited flat file format to enable access to a range of market data. Recent files are stored in a directory for current reports, and older files are moved into the archive reports directory.
Actual Generation and Load Data
Actual generation and load data - filename: public_dispatchSCADA_*.csv (approx. size 16Kb)
This file contains actual generation data for each scheduled generation unit, semi-scheduled generation unit, and non-scheduled generating units or non-scheduled generating systems (a non-scheduled generating system comprising non-scheduled generating units). This file also contains actual load for each scheduled load. The actual generation and load data in the file is reported under a column headed 'SCADAVALUE'. (Please see note)
Non-Scheduled Generation Data
Non-Scheduled Generation Data - filename: public_next_day_actual_gen_*.csv (approx. size 600Kb)
The metered power outputs from most large non-scheduled generating units and generating systems are provided to AEMO in real time to assist in maintaining the security of the power system. Under Clause 3.13.4(r) of the National Electricity Rules AEMO is also required to publish such data to Registered Participants, in a daily file covering all intervals of the previous trading day.
The output values in these files are sampled from SCADA at 5-minute intervals and reported under the column headed 'MWH_READING'. Note that these figures should be read as instantaneous power in MW rather than MWh. They may be used to estimate energy production, but are not the same as the half-hourly energy metering results used to determine market settlements. (Please see note)
Historical Demand - filename: public_histdemand_*.csv (approx. size 2Mb)
This file contains historical demand information (4 second SCADA de mand average over half hour interval), by region for each trading interval for that trading day.
The National Electricity Market registration classifications of Anglesea Power Station Unit 1 (dispatchable unit ID: APS) and Yarwun Power Station Unit1 (dispatchable unit ID: YARWUN_1) are market non-scheduled generating units. However, it is a condition of the registration of these units that the Registered Participants comply with some of the obligations of a Scheduled Generator. Both units are dispatched as scheduled generating units with respect to their dispatch offers, targets and generation outputs. Accordingly, information about APS and YARWUN_1 is reported as scheduled generating units information.
The Tumut 3 Pumps (dispatchable unit ID: SNOWYP) are not classified as scheduled load in the National Electricity Market. However, they are required to comply with some of the obligations of a Market Customer in respect of a scheduled load. The Tumut 3 Pumps are dispatched as if they were scheduled loads with respect to their dispatch bids, targets and consumption. Accordingly, information about SNOWYP is reported as market scheduled load information.
This data is provided for information only and is not intended for commercial use. AEMO does not guarantee the accuracy of the data or its availability at all times.