County annual report · FIPS 15007
2025 Kauai County, HI Power Outage Report
In 2025, customers in Kauai County, HI went without power for an average of 10.5 hours, a total of 366K customer-hours (Hawaii average 5.5 hours). That ranks 1st worst of 4 Hawaii counties and 766th of 3,000 nationally.
Compared with HI, the US and 2024
Coverage line is EAGLE-I's share of Hawaii customers tracked each year.
Biggest outages in Kauai County, 2025
The 5 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 20, 2025 23:30 | October 24, 2025 04:15 | 217d 4h | 56,195 | 187K |
| 2 | January 1, 2025 00:00 | March 20, 2025 20:30 | 78d 20h | 6,048 | 132K |
| 3 | October 24, 2025 23:00 | January 1, 2026 00:00 | 68d 1h | 2,447 | 47K |
| 4 | October 24, 2025 08:30 | October 24, 2025 18:30 | 10h | 11 | 36 |
| 5 | October 24, 2025 20:00 | October 24, 2025 20:45 | 45m | 1 | 1 |
Outage episodes by size in 2025: 3 reached 100+ customers, 3 reached 1,000+ customers, 1 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Kauai County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Kauai Island Utility Cooperative | 2024 | 6.4 hrs | 4.39 | 3.7 hrs | 2.39 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Hawaii's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 34,835 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Kauai County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Kauai County, HI annual power outage report, 2025, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2025/hawaii/kauai-county