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Issue 773 | Duration-Limited Storage De-Rating Factor Assessment & Capacity Market Consultation – Improving the Framework – Government Response

Issue 773 | Duration-Limited Storage De-Rating Factor Assessment & Capacity Market Consultation – Improving the Framework – Government Response

Tom Edwards Tom Edwards Senior Consultant

Duration-Limited Storage De-Rating Factor Assessment & Capacity Market Consultation – Improving the Framework – Government Response 04 December 2017 Headline Assessment 1 Assessment & recommendation 1.1 Summary On 4 December the EMR Delivery Body (National Grid) published the final Duration Limited Storage De-rating Factor Assessment. This summarised the results of National Grid’s modelling of the de-rating factors for duration limited storage in the Capacity Market (CM). For delivery year 2018-19 a one-hour duration battery will be de-rated to 40.41% and in delivery year 2021-22 a one-hour battery would be de-rated to 36.44%, compared to a four plus hour battery of 96.11% de-rating currently applied in both ...

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