• What the system operator does

    Published: 16/12/2013 12:00am

    The system operator is responsible for co-ordinating electricity supply and demand in real time in a manner that avoids fluctuations in frequency or disruption of supply. Read More

  • Joint development programme

    Published: 25/03/2019 12:00am

    Clause 7.7 of the Code requires us to agree and publish our joint development programme (JDP) with the System Operator. The JDP outlines the projects we and the System Operator think will make the greatest contribution to reliability, efficiency and comp Read More

  • Ancillary service rates

    Published: 01/03/2013 12:00am

    Clause 8.67 of the Code requires the system operator to set, annually in advance, the peak rate and the penalty rate for each zone used to allocate voltage support costs. Read More

  • System operator monthly reports

    Published: 15/05/2013 12:00am

    The system operator provides the Authority with a monthly operational performance report as required under clause 3.15 of the Code. Read More

  • Annual system operator reviews and assessments

    Published: 28/01/2013 12:00am

    The Authority has a legal obligation to review and assess the performance of the system operator every financial year. Read More

  • Grid emergency reports

    Published: 03/12/2013 12:00am

    A grid emergency occurs when the system operator's ability to meet its principal performance objective (PPO) obligations is at risk, equipment or people are at risk or the system operator has to take urgent action to restore PPOs. Read More