ESO consults on embedded generator de-rating factors

National Grid Electricity System Operator (ESO) has issued a consultation on a new methodology for determining the de-rating factors for embedded generators in the Capacity Market, in particular gas and diesel reciprocating engines and energy-from-waste plants. Due to a lack of specific data, conventional generators embedded in distribution networks have previously been grouped together with their closest transmission-connected equivalents – for example, gas engines with open-cycle gas turbines.

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