Top 10 Countries by Reliability of Electricity Supply (SAIDI, minutes/customer-year)

Values and years match the StatRanker HTML blocks used for the 2025 vintage ranking.

Rank Country SAIDI_minutes Year Region Scope_note
1 Singapore 0.26 2024 Asia Sustained interruptions (official reporting)
2 Switzerland 8.00 2023 Europe National reporting per regulator definition
3 South Korea 8.92 2022 Asia Utility KPI published for outage time
4 Germany 11.7 2024 Europe Interruption duration per final customer
5 Luxembourg 13.4 2024 Europe Non-planned interruptions (benchmarking)
6 Netherlands 23.9 2024 Europe Annual outage duration (national reporting)
7 Japan 24 FY2024 Asia National quality-of-supply dataset
8 Denmark 29.7 2023 Europe Average interruption time (national report)
9 Austria 37.72 2022 Europe Excluding regional exceptional events
10 United Kingdom 39.71 2024/25 Europe Customer Minutes Lost (CML) sector total