Glossary Term: De-Rated Margin forecast

For each Settlement Period, the National Electricity Transmission System Operator (NETSO) sends the BMRA the De-Rated Margin Forecast calculated in accordance with the Loss of Load Probability Calculation
Statement.

BSC defined definition

In respect of each Settlement Period, the NETSO shall send to the BMRA the De-Rated Margin Forecast calculated in accordance with the Loss of Load Probability Calculation Statement as a minimum (and may send more frequently):

  • (a) at 1200 hours on each calendar day for all Settlement Periods for which Gate
    Closure has not yet passed and which occur within the current Operational Day
    or the following Operational Day; and
  • (b) at eight, four, two and one hour(s) prior to the beginning of the Settlement
    Period to which the De-Rated Margin Forecast relates.

BSC documentation

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