County annual report · FIPS 15001
2025 Hawaii County, HI Power Outage Report
In 2025, customers in Hawaii County, HI went without power for an average of 6.7 hours, a total of 590K customer-hours (Hawaii average 5.5 hours). That ranks 2nd worst of 4 Hawaii counties and 1189th 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 Hawaii County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 31, 2025 00:45 | February 3, 2025 07:45 | 3d 7h | 36,430 | 168K |
| 2 | May 2, 2025 05:00 | May 2, 2025 12:45 | 7h 45m | 14,550 | 22K |
| 3 | November 3, 2025 06:15 | November 3, 2025 14:15 | 8h | 5,453 | 2,334 |
| 4 | November 13, 2025 01:15 | November 15, 2025 16:15 | 2d 15h | 5,177 | 42K |
| 5 | September 8, 2025 19:15 | September 9, 2025 20:45 | 1d 1h | 3,837 | 12K |
| 6 | August 29, 2025 19:30 | August 31, 2025 01:45 | 1d 6h | 3,401 | 15K |
| 7 | March 25, 2025 23:15 | March 26, 2025 04:30 | 5h 15m | 2,950 | 1,479 |
| 8 | July 8, 2025 17:45 | July 9, 2025 05:45 | 12h | 2,945 | 11K |
| 9 | September 14, 2025 15:45 | September 14, 2025 17:15 | 1h 30m | 2,902 | 2,902 |
| 10 | January 7, 2025 21:45 | January 8, 2025 12:45 | 15h | 2,761 | 14K |
Outage episodes by size in 2025: 139 reached 100+ customers, 59 reached 1,000+ customers, 2 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 Hawaii 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 |
|---|---|---|---|---|---|
| Hawaii Electric Light Co Inc | 2020 | 2.1 hrs | 1.82 | 2.1 hrs | 1.82 |
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 ÷ 87,747 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. Hawaii County has data for 2021–2025.
Cite this report
MassOutage (massoutage.com), Hawaii 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/hawaii-county