Frequency and Duration of Interruptions

GRI EU28

To manage its system properly, CTEEP consistently monitors the Equivalent Frequency of Interruptions (FREQ), an indicator that shows the number of times that maximum demand is interrupted in the period under observation, as well as the Equivalent Duration of Interruptions (DREQ), which reflects the length of time in minutes during which maximum demand is interrupted in a given period.

The Company's FREQ and DREQ stood respectively at 0.1178 (down from 0.2169 in 2012) and 1.8880 minutes (down from 3.9757 in 2012). These results are directly connected with the Company's operational efficiency. (GRI EU28, EU29)

(GRI EU29)
Year	CTEEP DREQ	CTEEP FREQ
2011	3.3417	0.2554
2012	3.9757	0.2169
2013	1.8880	0.1178

The Company's power transmission losses in 2013 were estimated at 1%, a loss rate considered low and expected in energy transmission activities. (GRI EU12)