IT notices: Maintenance for BMRS services on 10 December 2018

There will be some planned downtime impacting the Balancing Mechanism Reporting Service from 12:30 to 13:30 on Monday 10 December 2018.

The downtime is required for National Grid and Elexon to carry out essential maintenance work on the communications line.

How will I be impacted?

During the outage, the National Grid applications which includes Balancing Mechanism (BM) and Market Operation Data Interface System (MODIS), will be suspended and will not be sending data to BMRS.

Therefore all data normally received from National Grid applications will not be updated via the BMRS Website, APIs, Data Push Service and TIBCO.

This includes REMIT and European Transparency Regulation (ETR) data sent from National Grid’s MODIS system and as a result, there will be a delay for BMRS in sending ETR to ENTSO-e Transparency Platform from BMRS.

Furthermore Settlement Calculations will be suspended on the BMRS and be restarted at the end of each period of downtime.

After the downtime

Following this planned downtime, the BMRS will start processing the backlog and we expect website and APIs will be fully updated by approximately 14:00 on 10 December 2018.

Not impacted

The remaining BSC Central Systems are unaffected by this planned downtime.

Parties who currently use the Elexon Portal POST API interface ( to submit REMIT files to BMRS will not be impacted by this outage and the data will continue to be published on BMRS as normal.

What do I need to do?

You do not need to take any specific action but just note the impact to parties during this planned outage.


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