CP1381 – Negative Wind Generation Forecast on BMRS

Formal title: Negative Wind Generation Forecast on BMRS

Current Status

CPC Consultation
Committee Decision


As it currently stands, the Balancing Mechanism Reporting Service (BMRS) does not support negative values for the Wind Generation Forecast, and so it rejects any WINDFOR files containing generation values less than zero.  In these circumstances, a workaround has to be applied in which any negative values are replaced with zeroes and reloaded into BMRS for storage and publication.


CP1381 was raised and issued for industry impact assessment via CPC00719 on 26 October 2012, with responses due back on 22 November 2012. CP1381 was presented on 18 December 2012 to the ISG where the decision to defer the change was made, pending other BMRS changes to which CP1381 could be coupled. CP1381 was reassessed on the basis of it being  implemented in parallel with the approved P291.

CP1381 was rejected by the ISG on 22 October 2013.


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