Common grid model methodology
Article 18
1. No later than six months after the approval of the common grid model methodology established for the day-ahead and intraday time frames referred to in Article 9(6) of Commission Regulation (EU) 2015/1222, all TSOs shall jointly develop a proposal for a common grid model methodology for long-term time frames. The methodology shall be subject to consultation in accordance with Article 6. 2. The common grid model methodology shall take into account and complement the common grid model methodology developed pursuant to Article 17 of Regulation (EU) 2015/1222. The methodology shall enable the establishment of the common grid model for long-term capacity calculation time frames in capacity calculation regions where security analysis based on multiple scenarios pursuant to Article 10 is applied. 3. When developing the common grid model methodology, the requirements set in Article 17 of Regulation (EU) 2015/1222 shall apply.