Year-ahead common grid models
Article 67
1. By 6 months after entry into force of this Regulation, all TSOs shall jointly develop a proposal for the methodology for building the year-ahead common grid models from the individual grid models established in accordance with Article 66(1) and for saving them. The methodology shall take into account, and complement where necessary, the operational conditions of the common grid model methodology developed in accordance with Article 17 of Regulation (EU) 2015/1222 and Article 18 of Regulation (EU) 2016/1719, as regards the following elements: (a) deadlines for gathering the year-ahead individual grid models, for merging them into a common grid model and for saving the individual and common grid models; (b) quality control of the individual and common grid models to be implemented in order to ensure their completeness and consistency; and (c) correction and improvement of individual and common grid models, implementing at least the quality controls referred to in point (b). 2. Each TSO shall have the right to request from another TSO any information on modifications to the network topology or on operational arrangements, such as protection setpoints or system protection schemes, single line diagrams and configuration of substations or additional grid models relevant for the provision of an accurate representation of the transmission system to undertake operational security analysis.