CESI leads the market of the testing and certification of electromechanical equipment and advisory services on electrical systems; it covers all stages of the life cycle of the electrical system and offers electrical system companies (generation, transmission and distribution), manufacturers of electrical and electronic equipment, major electricity users and local and national public administrations, a full range of services seeking to solve problems connected with the production processes of the whole electrical energy sector.
CORESO is a Belgian service company with its headquarters in Brussels; Terna joined the ownership structure in November 2010 with an equity interest of 22.485%. The ownership structure of the company includes the operators of France (RTE), Belgium (Elia) and Great Britain (National Grid), each holding an equal share to that of Terna, and the German operator, 50Hertz Transmission, with 10%. CORESO prepares daily forecasts and analyses in real time of energy flows in Central- Western Europe, identifying possible critical issues and duly informing the TSOs concerned in a timely manner.
CrnoGorski Elektroprenosni Sistem AD (“CGES”) is the Montenegro TSO of which Terna became a shareholder with 22.09% of the capital following the approval by the shareholders’ meeting of CGES of the capital increase reserved to Terna. The agreement represents the end point of a process of industrial and country cooperation and is part of the intergovernmental agreements between Italy and Montenegro which were initiated on 19 December 2007 and sanctioned by the signing of a strategic partnership agreement in November 2010, for the construction of a new submarine electrical interconnection and the implementation of partnerships with national transmission operators.