GB Grid Code Operating Code 8 (SGC OC6), Operating Code II (SGC OC9) and Balancing Codes: An Ofgem/DTI mini-drafting consultation

This mini-drafting consultation is on the Operating Code 8 (OC8 "Safety Co-ordination" OC6 in the SGC), Operating Code 11 (Numbering and Nomenclature of HV Apparatus - OC9 in the SGC) and the Balancing Codes (BCs). A summary of the changes in moving to GBGC OC8 and GBGC OC11 for parties in Scotland and parties in England and Wales is presented in sections 4 and 5. To assist users in Scotland who might be unfamiliar with the EWGC, the SGC OCs have been compared with the equivalent EWGC OCs and differences between the two codes have been identified. This analysis is presented in the appendices in comparison tables. In addition to the comparison tables, the full drafts of the proposed GBGC OC8 and OC11 are appended and as this is the first time they have been published they are published as "draft 1". Any changes marked have been identified against the current version of the EWGC in the same manner as was used in GBGC D1. A comparison table has not been provided for the GBGC BCs as the equivalent sub-codes in the SGC, the Scheduling and Despatch Codes are very different. Draft text for the BCs is not appended to this consultation as no further changes have been identified from GBGC D1. Views are requested on the proposals throughout the document.