In practice, BMPCoP describes the principles that govern operation of the electricity balancing market on the island of Ireland. It is the Balancing Market Principles Code of Practice for the Single Electricity Market (SEM) and explains how the transmission system operators (EirGrid and SONI) schedule, dispatch and take balancing actions, and how those actions are reflected in settlement and imbalance pricing. BMPCoP is not primary legislation; it is a regulatory code approved by the SEM Committee and referenced in the SEM Trading and Settlement Code, and is regularly consulted in regulatory decisions and disputes.
Key legal features include principles on transparency, efficiency and system security; the categorisation and treatment of system operator actions in the balancing market; the handling of constraints and curtailment (including priority dispatch); and publication, consultation and review requirements. It is practically significant for generators, suppliers and traders in understanding how balancing actions may affect market outcomes and compliance.
Usage is specific to Ireland and Northern Ireland and is broadly consistent across both jurisdictions. The term is not used in England & Wales or Scotland, where the analogous concept is National Grid ESO’s Balancing Principles Statement.