The following Energy guidance note provides comprehensive and up to date legal information covering:
In broad terms, the physical infrastructure of the Great Britain (GB) electricity market can be divided up as follows:
generators—these installations produce the electricity. They are connected to what is colloquially referred to as ‘the grid’, so that they can ‘export’ electricity for conveyance to the consumer’s premises. For more information, see Practice Notes: Great Britain electricity generation, distribution and supply licensing and exemptions regime and The Great Britain electricity market—an introduction
interconnectors—interconnectors are high-voltage connections between the electricity systems of two countries; this allows electricity to be traded across borders. Interconnectors share a number of physical characteristics with offshore transmission lines but are licensed separately and are subject to different regulatory obligations. For more information, see Practice Notes: Great Britain electricity interconnectors, The Great Britain electricity market—an introduction, and International interconnection—overview
transmission system—the ‘national electricity transmission system’ (NETS) is made up of several connected, high-voltage networks that are owned separately, but operated collectively by the ‘system operator’ or ‘SO’ (National Grid Electricity System Operator Limited (NGESO)). There are three onshore ‘transmission owners’ (TOs) responsible for developing and maintaining the onshore NETS in their respective geographical ‘transmission areas’, and an increasing number of offshore transmission owners (OFTOs) responsible for the transmission links between individual offshore wind farms and the rest of
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