Mateescu, who served as the head of Transelectrica’s planning division, replaced Octavian Lohan in the position.
Following his replacement, Lohan will resume his former attributions as deputy general manager of the company, Transelectrica said.
Lohan was appointed head of Transelectrica in February, after the company’s previous general manager was dismissed over faulty communication regarding Transelectrica’s available energy resources.
Lohan’s mandate as general manager expired Tuesday.
The Romanian Economy Ministry owns 73.6% in Transelectrica, while investment fund Fondul Proprietatea holds a 13.5% stake.