FOI Disclosure Logs

1. All records relating outages of plant and lines at Glassmore substation, which resulted in the disconnection of more than 1000 customers, in the period from 00:00 on 16 September 2022 to 23:59 on 16 January 2023, to include, in relation to each outage:

• the start and end time of the outage;
• the level in the network at which the outage occurred 110 kV,. 38kv;
• the specific cause of the outage;
• whether any relevant redundant plant or lines were out of service at the time of the outage and whether or not that contributed to the outage;
• whether any recommendations were made to reduce the likelihood of a reoccurrence of similar outages and, if so, whether those recommendations have been implemented or are planned to be implemented;
• whether the tripped breakers are capable of being closed against full load or whether breakers at a lower level need to be opened first; and
• whether the relevant breakers can be closed remotely, or whether a crew needs to be dispatched and where a crew would normally be dispatched from.

2. All records relating to whether there is any redundancy in the plant and lines supplying the Lusk area from       Glasmore  and identifying single points of failure in the supply to Lusk.