An assessment of the tectonic activity in Vâlcea-Fâgâraş-Câmpulung seismic area is presented, with a direct impact on the power facilities operational safety - especially of the numerous hydropower plants in this area. The analysis of the acquired data revealed that the seismic activity in this mountainous area (with a high hydropower potential) shows an intensifying trend. As the seismic hazard is significant, in order to increase the operational safety of energy equipment and installations, to reduce the damage caused by crustal earthquakes specific to the area, it is strongly recommended that energy equipment and installations to be provided with complex adequate protection systems as warning systems based on local assessment of seismic events.