BM Units are the units used to represent all energy export and import in Settlement. There are specific BM Units assigned to each Party and we sum up their volumes and contracts, for each Party, when we carry out the Settlement calculations. For further information on BM Units please read the BM Unit Information Sheet.

Generators will be required to register BM Units & associated Meters in accordance with Section K of the BSC.

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What do I need to do?

At least 30 WDs prior to your BM Unit registration date you will need to submit the following forms to provide the details required to register your BM Units & associated Metering Systems. All forms and any queries should be sent to Market Entry (market.entry@elexon.co.uk).

BSCP15/4.1 BM Unit Registration Form

BSCP20/4.1 form to register any associated metering systems.

BSCP20/4.3 to provide the Meter Technical Details (MTDs) for the new Metering Systems (provided by the CVA MOA appointed by you).

BSCP75/4.2 to provide aggregation rules for the new metering systems.

Site diagrams that have been pre approved by National Grid.

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All forms can be found in the relevant BSCPs.