
National Energy System Operator
Government-owned energy system operator for Great Britain

Government-owned energy system operator for Great Britain
The National Energy System Operator (NESO) is a government-owned energy system operator for Great Britain, based in Warwick, England. It is designated as the Independent System Operator and Planner (ISOP) under the Energy Act 2023. NESO is the licensed electricity system operator and balances supply and demand in real time. It has strategic planning roles for electricity networks, and planning and forecasting roles for gas transmission systems. NESO began operating on 1 October 2024 after the UK government acquired the electricity system operator division of National Grid plc for £630 million. As of December 2025, the chair is Dr Paul Golby and the chief executive is Fintan Slye.
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