Deepak Lathi’s Post

24 Apr 2024   The GB electricity market has become increasingly reliant on interconnection with other European markets. Interconnectors are seen as key to managing periods of low wind output in an electricity system increasingly dependent on intermittent renewable generation. But what if the markets at the other end of those interconnectors are also experiencing dunkelflaute conditions? As most of them (with the exception of Norway) share similar weather to the UK, and (with the exceptions of Norway and France) share similar wind-led de-carbonisation strategies, can we really rely on interconnectors to ensure security of supply? And what about the effects of energy nationalism which has been increasing since the war in Ukraine? Can we rely on countries being willing to export at all times when GB needs to import?   Comment by Dr John Carr   System Stress and compensating wind fluctuations   The paper focuses on the way interconnectors can deal with stress in the GB electricity supply, but concludes “ So far, there has not been a system stress event, triggering delivery under Capacity Market rules, but each year the risk of this increases. However, the performance of interconnectors in such an event is described by experts as entirely hypothetical.” Given the vital importance of avoiding blackouts it would seem the paper should go into detail about what the grid systems actually do protect GB against power cuts. This would require a discussion of what events are most likely to cause system stress e.g. sudden power station failures and rapid wind power fluctuations. A vital parameter must be the reaction time for the backup system to kick in. It is far from obvious that the supply fromseveral different interconnect cables from diverse countries could be coordinated to react fast enough. If this is part of the GB plan then a detailed discussion of how it would work is necessary.   Please continue reading here: https://lnkd.in/dGUMDxAb

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