What you need to know. Data from the current day (D) can be downloaded from the graphs in the “Load”, “Generation” and “Transmission” sections. Historical data (up to D-1) can be downloaded here in the Download centre and is refreshed at midnight of day D.
In this section, data can be downloaded for a total of six months at a time. The one exception to this is the “Installed” data, which can be downloaded for all years available.
The “Custom range” mode enables up to 150 thousand rows of data to be downloaded.