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  2. Real-time prices (RTP)

Wholesale datasets

Real-time prices (RTP)

Real-time prices, or 5-minute prices as they are also known, are prepared and published on WITS  by the pricing manager according to the provisions set out in Part 13 of the Code.  Real-time prices derived from the RTP schedule  are made available here for analysis and research purposes.

Price files published during any given day are compressed into a zip file and uploaded to EMI datasets in a single batch job early in the morning of the following day. The zipped up CSV price files are presented as is where is, i.e. we do not transform the data or in any other way reformulate it from that which WITS published. We do, however, slightly revise the CSV file naming convention.

Each real-time price file contains data pertaining to a single 5-minute interval. There are six 5-minute intervals per half hour trading period, giving rise to 288 RTP files per day, all collected into the daily zip file. For a variety of reasons, there will be occasions when there are fewer than 288 files per day. We will make no effort to track down any missing files or explain why they are missing.

The CSV files contain nine columns and have no header row. Taken in order, the columns are:

  • Point of connection, e.g. HAY2201
  • Trading date - dd/mm/yyyy
  • Trading period - an integer from 1 to 50
  • Market time - hh:mm, i.e. the time at which the 5-min interval starts
  • Price ($/MWh) - number(8,2)
  • Island - NI or SI
  • Load area - a 2-character label denoting one of ten load forecasting areas used by the system operator
  • Market flag - I for immediate or W for withheld, i.e. a flag indicating whether details were released after five minutes or held back
  • Run time - dd/mm/yyyy hh:mm:ss, i.e. the time the SPD model was run to generate the prices.

At this time, real-time prices are made available dating back to 20 October 2018.

Name Date modified File size
2019
11 Dec 2019
2018
08 Dec 2019
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