|System Average Interruption Duration Index (SAIDI)|
|European Union Electricity Market Glossary|
According to the CEER Benchmarking Report 6.1 or 26 July 2018 on the Continuity of Electricity and Gas Supply (data update 2015/2016, Ref: C18-EQS-86-03, p. 7, 8, 10) for electricity in 2016, unplanned SAIDI including exceptional events had a range between 9 and 371 minutes per customer while unplanned SAIDI without exceptional events was between 9 and 290 minutes per customer.
The former indicator includes all interruptions regardless of their cause and is possibly more reliable for benchmarking because of significant differences in definitions of exceptional events across Europe.
The said CEER Report observes that the comparison of SAIDI is complicated by the fact that voltage levels are taken into account in different ways across reporting countries, in particular:
- Ireland, Romania and Sweden do not include extra high voltage in their data;
Unplanned SAIDI for gas ranged in 2016 from 0,008 to 6,043 minutes per customer (with the country with the highest value including major incidents in their interruption indicator).
In all other countries, unplanned SAIDI for gas was significantly below 2.
Planned SAIDI values for gas were in 2016 between 0,026 and 23,389 minutes per customer.
The aforementioned CEER Report also notes that the continuity of supply indicators for gas are monitored in significantly less European countries than for electricity.
Moreover, SAIDI values are generally much lower in gas than in electricity.
This is due to underground gas pipelines which are not exposed to forces of nature in the same way as overhead power cables.
|Last Updated on Friday, 24 August 2018 19:35|