{"metadata":{"datasets":["SYSWARN"]},"data":[{"publishTime":"2026-09-28T11:00:00Z","warningType":"ELECTRICITY MARGIN NOTICE","warningText":"From : Power System Manager – NESO Electricity Control Centre\r\\n\r\\nELECTRICITY MARGIN NOTICE \r\\n\r\\nAn ELECTRICITY MARGIN NOTICE has been issued by the National Energy System Operator to encourage market actions to increase System Margins.\r\\n \r\\nFor the period:\r\\nfrom 16:00 hrs to 19:00 hrs on Monday   28/09/2026  \r\\n             \r\\nThere is a reduced system margin. System margin shortfall 104 MW\r\\n\r\\nThe current contingency requirement is 333 MW.\r\\n\r\\n1500 MW of generation is excluded from the available system margin due to system constraints.\r\\n\r\\nMaximum Generation Service may be instructed.\r\\n\r\\nTrading Points, Control Points and Externally interconnected System Operators are requested to notify National Energy System Operator of any additional MW capacity.\r\\n\r\\nSuppliers please advise National Energy System Operator of any additional Demand Control available.\r\\n\r\\nThe situation will be reviewed again by National Energy System Operator at 15:00 hours and an update issued.\r\\n\r\\nThis Notification of Issue of a GB Transmission System Warning - ELECTRICITY MARGIN NOTICE Issued at 12:00 hrs on 28/09/2026\r\\n\r\\nIssued by Gabriel Diaz NESO Electricity Control Centre\r\\n\r\\n**************\r\\n\r\\nInformation Note:-\r\\nAs the System Operator, National Energy System Operator are responsible for balancing the electricity system in the final hours before real-time. We have a number of routine tools we can use to help us do this, this toolkit includes ELECTRICITY MARGIN NOTICES. An ELECTRICITY MARGIN NOTICE is used to send a signal to the electricity market. It highlights that, in the short-term, we would like a greater safety cushion (margin) between power demand and available supply. It does not signal that blackouts are imminent or that there is not enough generation to meet current demand.\r\\n"}]}