Supply reliability refers to the trouble-free operation of network components and networks as a whole, and is assessed by metering the average frequency and duration of supply interruptions. The reliability indicators that can be calculated form these data also enable international comparisons of supply reliability.

Definition in the technical and organisational rules

Part A of the technical and organisational rules defines supply reliability as “the ability of an electrical system to fulfil its tasks under certain conditions during a predefined period of time.”

E-Control’s contribution to supply reliability

Since 2002, E-Control has been monitoring supply reliability in accordance with the Statistik-Verordnung (Statistics Ordinance). We cooperate with the system operators and with the Association of Austrian Electricity Companies and publish the results of our monitoring exercises annually. They confirm that Austria enjoys a high level of supply reliability.

Statistics on outages and disturbances

The Elektrizitätsstatistikverordnung (Electricity Statistics Ordinance) 2016, the Elektrizitäts-Energielenkungsdaten-Verordnung (Electricity Intervention Data Ordinance) 2014 and the Netzdienstleistungsverordnung Strom (Ordinance on Electricity System Service Quality) as amended in 2013 mandate that statistics on outages and disturbances on the electricity system be drawn up and published annually. Please switch to our German pages for the full documents.

For an international comparison of supply reliability across European countries, please consult the Benchmarking Report published on a roughly bi-annual basis by the Council of European Energy Regulators (CEER).