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This research compares the frequency and duration of outages within distribution networks for main Nordic land countries (Sweden, Denmark, Finland, and Norway). In addition, this paper focuses on planned and unplanned outages for low- and medium-voltage networks; the consequences of outages for distribution networks and companies; and the level of discomfort experienced by consumers during both planned and unplanned outages. This study highlights the countries with the highest incidence of outages by collecting data from their official reports, compares the frequency and duration of unplanned outages, focuses on SAIFI (System Average Interruption Frequency Index), SAIDI (System Average Interruption Duration Index), and CAIDI (Customer Average Interruption Duration Index)-based outage indices, and examines their outage trends.

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Comparison of Outages Trends and Statistics in Nordic Countries Across Distribution Networks and Their Impacts

  • 会议论文

  • 发表日期：

    2026年

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  • Seema,
  • Andreas Theocharis,
  • Reza Sirjani

摘要

This research compares the frequency and duration of outages within distribution networks for main Nordic land countries (Sweden, Denmark, Finland, and Norway). In addition, this paper focuses on planned and unplanned outages for low- and medium-voltage networks; the consequences of outages for distribution networks and companies; and the level of discomfort experienced by consumers during both planned and unplanned outages. This study highlights the countries with the highest incidence of outages by collecting data from their official reports, compares the frequency and duration of unplanned outages, focuses on SAIFI (System Average Interruption Frequency Index), SAIDI (System Average Interruption Duration Index), and CAIDI (Customer Average Interruption Duration Index)-based outage indices, and examines their outage trends.