Skip to main content

Wholesale datasets

Nodal prices and volumes

Nodal prices and volumes are extracted from real-time dispatch (RTD) SPD case files. A single file is published daily and contains the nodal price and volume data from all RTD cases for the preceding day.

.

Volumes include megawatts of load by point of connection and generation by point of connection and unit. The interval date/time (provided in the file) indicates the five-minute interval within the trading period that the data pertains to. If the unit symbol ends in a zero, the 'unit' is likely representing many generating units at that point of connection. Load is given to SPD whereas generation or dispatch is determined by the model. Nodal prices and location factors are also included in each file. The location factor is a ratio of the nodal price, for all nodes within an island, to the nodal price at the reference node for that island; reference nodes are Benmore in the south and Haywards in the north.

Nodal prices and volume files from RTD schedules are provided for several years. Real-time pricing began on 1 November 2022.

Name Date modified File size
2024
24 Jul 2024
2023
10 Jan 2024
2022
21 Jun 2023
2021
21 Jun 2023
2020
21 Jun 2023
What are datasets?

Datasets are collections of files that often contain large volumes of data and are available for immediate download. Dataset users are typically analysts familiar with the electricity industry and have a need to obtain a large set of data or specific data on a regular basis.

Trending wholesale datasets
Check a term

Visit the glossary for a list of defined terms used on the website.

Have a question?

Visit the forum to see if the information you are looking for is already available or ask a question to see if some of our informed users or staff can help?

Alternative access to datasets

Alternative methods are supported to connect to EMI datasets. These methods better facilitate downloading many files or automating regular downloads. See here for more information.