We recently started publishing forecast prices and real-time prices on EMI datasets. The price files for each schedule type are gathered up into a daily zip file and are published once per day. Publication of these data are designed to support research and analytical requirements, rather than real-time operations. See the relevant folders in EMI datasets for more information. When the back-fill is complete, all of these price series will go back to 20 October 2018.
In the first quarter of 2020, we should be able to get some new APIs up and running so that these data are also available in a more customisable manner, as well as much closer to real-time. The new APIs that we plan to stand up next year will replace the current RTP and RTD APIs. The current APIs were commissioned a few years ago now, primarily to demonstrate the strength of demand for wholesale market information via APIs. The demand clearly exists, and building APIs for publicly available data such as prices is now on the WITS development programme. However, the WITS APIs are still some time away.