The deadline for responses to the proposals is 15 December 2021. ![]() The auction results would then be published by 3pm, with delivery commencing by 11pm on the same day. The process would involve NGESO confirming to EPEX its DM/DR requirement for each product type by 2:30pm the day before each electricity forward agreement block. Also included are proposals for the DM/DR auction process, which would be hosted by the European Power Exchange (EPEX). They set out service parameters for both DM and DR, including speed of response, delivery range, full delivery point and time to full delivery. The consultation documents include auction rules, service terms, a glossary, testing guidelines and participation guidance. DM would provide a rapid response where sudden large imbalances between demand and generation push frequency towards the thresholds, while DR would slowly correct continuous but small deviations of frequency. Both DM and DR would be pre-fault services they would act to keep frequency within these operational limits. NGESO has a licence obligation to control system frequency at 50Hz, with a 1% margin in either direction. The National Grid ESO (NGESO) has published a consultation on terms and conditions for its two latest frequency response services, Dynamic Moderation (DM) and Dynamic Regulation (DR). National Grid ESO consults on Dynamic Moderation and Dynamic Regulation This week, we look at National Grid's consultation on its latest response services, the need for a decision on hydrogen for heating, the world's first flight using only synthetic fuel, and more.
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