SAIDI Index for Gas Security in 2014 Up Against 2013 Figure – Level with Previous Years Without Major Accident

The so-called SAIDI index (System Average Interruption Duration Index), which indicates the average time of interruptions of the gas supply per connected end consumer, went up from just 0,64 min/a in 2013 to 1.257 min/a, the Federal Network Agency (BNetzA) informed. This is comparable with other years in the period 2006 and 2012. Including an accident at a high-pressure pipe that did not effect standard rate customers (Tarifkunden), the SAIDI index for 2013, however, went up to 16,801 min/a.

Concerning the incident BNetzA provided the following information.

During construction at a high-pressure pipe a serious accident occured in October 2014. It (the pipe) had to be temporarily disconnected. With the help of feed-in changes and the conversion of fuels (“Durch die Umlegung von Einspeisungen und Brennstoffumstellungen …”) the industrial customers could be supplied again within a short period of time. …”

The roughly 730 gas grid operators have to submit a report on interruptions to BNetzA by 30 April each year (Section 52 German Energy Act (EnWG)), stating the time, duration, extent and cause of interruptions, which occurred in the last calendar year. The SAIDI index contains unplanned interruptions caused by third parties, repercussions from other grids and other disruptions that occurred in the sphere of the grid operators. The SAIDI index does not contain planned interruptions nor interruptions due to force majeure.

Source: Federal Network Agency

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