Stability midterm (Y-1) utilisation report

This dataset provides an indicative overview of the monthly utilisation of BMU’s with a Stability Y-1 contract - based on instructions provided by NESO’s Control Room.

The data includes the unit identifier (BMU-ID), start and cease times of instructions and the total utilisation time for each instructed period. Time values are all given in GMT.

NOTE: As services are paid at least a month in arrears in line with NESO's standard settlement processes e.g. service delivered in January will be paid towards the end of February, this data set will be updated shortly after payments for the relevant month have been made.

NOTE: Where there is no update to this dataset for a given month, it is due to the service not being utilised in that month.

NOTE: From 15th July onwards, all the utilisation data related to the Stability midterm (Y-1) 25/26 contracts covering the delivery period of Oct-25 to Sep-26 (which is currently in "Stability midterm (Y-1) utilisation report 26/27") will be consolidated into a single report within the "Stability midterm (Y-1) utilisation report 25/26" datafile. "Stability midterm (Y-1) utilisation report 26/27" data file will be deleted from data portal.