'Demand Response Unit Document' (DRUD) is a document, issued either by the demand facility owner or the Closed Distribution System Operator (CDSO) to the relevant system operator for demand units with demand response and connected at a voltage level above 1 000 V, which confirms the compliance of the demand unit with the technical requirements set out in the Demand Connection Code (DCC) and provides the necessary data and statements, including a statement of compliance (Article 2(22) of the Demand Connection Code (DCC)).
DCC Article 33
Procedures for demand units within a demand facility or a closed distribution system connected at a voltage level above 1 000 V
1. The operational notification procedure for a demand unit within a demand facility or a closed distribution system connected at a voltage level above 1 000 V shall comprise a DRUD. The relevant system operator, in coordination with the relevant TSO, shall specify the content required for the DRUD. The content of the DRUD shall require a statement of compliance which contains the information in Articles 36 to 47 for demand facilities and closed distribution systems, but the compliance requirements in Articles 36 to 47 for demand facilities and closed distribution systems can be simplified to a single operational notification stage as well as be reduced. The demand facility owner or CDSO shall provide the information required and submit it to the relevant system operator. Subsequent demand units with demand response shall provide separate DRUDs.
2. Based on the DRUD, the relevant system operator shall issue a FON to the demand facility owner or CDSO.
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