CP1408 – Excessively Large EAC/AA Control Points

Formal title: Excessively Large EAC/AA Control Points

Current Status

CPC Consultation
Committee Decision
Awaiting Implementation


CP1408 proposes to change the Non Half Hourly Data Aggregator (NHHDA) System to reject any Estimation of Annual Consumption/ Annualised Advances (EAC/AAs) that exceeds a certain consumption threshold entering Settlement. This will be based on an existing D0023 ‘Instruction Failure Resolution Code’. The system changes for the CP will also need to be reflected in the NHHDA User  Requirements Specification and supporting changes made to BSCP505 for NHHDAs.


CP1408 was raised by Elexon on 14 February 2014. CP1408 was issued for CP Impact Assessment on 3 March 2014, with responses due back on 28 March 2014. CP1408 was approved by the SVG at its meeting on 29 April 2014.


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