SONI is the electricity System Operator for Northern Ireland. From our control centre in Belfast, we ensure that power flows where and when needed. We forecast when and where electricity is needed across Northern Ireland: hour-to-hour, day-to-day, and year-to-year. We work to ensure there is enough electricity for industry to prosper, and for employment to grow. Our work is essential today, as well as being a crucial investment for future generations. The transmission system, or grid, brings power from where it is generated to where it is needed and also powers NIE Networks’ distribution system, which in turn, supplies electricity to homes, farms and businesses. Since 2009, SONI has been part of the EirGrid Group. SONI also operates the all-island wholesale electricity market with EirGrid through the Single Electricity Market Operator (SEMO) which has been in operation since November 2007. SONI is regulated by The Utility Regulator (UR). SEMO is regulated cooperatively by the Commission for Regulation of Utilities Water and Energy (CRU) and UR through the Single Electricity Market Committee (SEM-C). For more information, visit http://www.soni.ltd.uk/

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