Registering a T_, E_ or I_ BM Unit requires a lead time of 30 Working Days and 60 Working Days for a non-standard BM Unit, you will normally need to speak to National Grid before this process begins, so you should leave plenty of time to complete the whole process. Additionally if a Metering Dispensation needs to be sought for the site, refer to the Metering Dispensations page for the timescales associated with this. A standard BM Unit includes the following:
• The Export of a Generating Unit, CCGT Module or Power Park Module registered in CMRS
• A Combined Offshore BM Unit
• The Imports though the station transformers of a generating plant registered in CMRS
• Premises (or a customer supplied by a Party) directly connected to the Transmission System at one Boundary Point
• An Interconnector BM Unit
Other BM Units may be non-standard and their configuration needs to be agreed by the ISG. Please contact firstname.lastname@example.org for advice on whether a BM Unit is standard or a non-standard configuration.
The Go-live date for registering a 2_ or C_ BM Unit needs to align with the MDD Go-Live Date. These BM Units follow the MDD fast-track process. To register these BM Units, you need to submit MDD forms and a BSCP15/4.1 form. The MDD form needs to be submitted in line with the MDD timetable . A Supplier BM Unit may also be registered with National Grid. If you have a National Grid BM Unit ID, your BSCP15/4.1 form needs to be submitted at least 30 Working Days before the Go live date. If you are not registering your BM Unit with National Grid and you do not have a National Grid BM Unit ID, your BSCP15/4.1 form needs to be submitted at least 15 Working Days before the Go-live date.
If you are registering your BM Unit with National Grid, you will need to speak to them to obtain the National Grid BM Unit Id and begin their registration process.