Study on the development of the public Study on the development of the public transmission network around Goéland until 2030

Abstract: The project was performed in RTE (“Réseau de Transport d’Electricité”), the French Transmission System Operator (TSO) within the Network Optimisation and Development Service (SDOP) that has to plan and direct the development of the regional transmission network (225 and 63 kV). The goal was to carry out a study on the development of the power transmission network until 2030 in a context of increasing demand, in order to match power need in the future. Thus, it consists into the determination of the different constraints (transmission capacity constraints, short-circuit current limitations, voltage stability constraints, environmental constraints…) that might appear in the area of study in the medium-term (2020) and longterm (2030). These constraints were analyzed with the determination of the causes and the calculation of the seriousness (for example power cut and not distributed energy) of the aforementioned constraints. The next step consists in the analysis of several technical and economical solutions to satisfy these constraints. Then, the study results in an investment plan from 2007 to 2030 including the solutions, their costs and their years of investment. Finally, this work was presented, explained and approved by the regional management of RTE. This master thesis report is divided into four parts: a brief presentation of RTE is given, then the context of study and a prediction of the long-term behaviour of the electrical market are presented, followed by the technical issues and the general tools of the study and finally the consistent results related to the study are explained. A chart of confidentiality was signed not to transmit the results outside of the company. This report is based on an existing grid, even though the names of the substations have been changed for the sake ofconfidentiality.