County annual report · FIPS 18057
2021 Hamilton County, IN Power Outage Report
In 2021, customers in Hamilton County, IN went without power for an average of 1.7 hours, a total of 277K customer-hours (Indiana average 4.4 hours). That ranks 64th worst of 92 Indiana counties and 2347th of 2,974 nationally.
Compared with IN, the US and 2020
Coverage line is EAGLE-I's share of Indiana customers tracked each year.
Biggest outages in Hamilton County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 30, 2021 02:45 | August 31, 2021 03:45 | 1d 1h | 6,000 | 23K |
| 2 | January 26, 2021 00:15 | January 26, 2021 17:15 | 17h | 4,855 | 13K |
| 3 | December 11, 2021 02:45 | December 13, 2021 01:00 | 1d 22h | 4,105 | 16K |
| 4 | December 15, 2021 05:45 | December 15, 2021 06:00 | 15m | 3,958 | 990 |
| 5 | June 18, 2021 11:45 | June 20, 2021 20:00 | 2d 8h | 3,362 | 23K |
| 6 | July 19, 2021 22:15 | July 20, 2021 04:45 | 6h 30m | 3,362 | 8,378 |
| 7 | February 23, 2021 21:45 | February 24, 2021 12:00 | 14h 15m | 3,300 | 19K |
| 8 | March 26, 2021 02:00 | March 26, 2021 16:45 | 14h 45m | 3,168 | 7,759 |
| 9 | December 21, 2021 12:30 | December 21, 2021 19:00 | 6h 30m | 2,366 | 1,176 |
| 10 | March 18, 2021 12:45 | March 19, 2021 22:30 | 1d 9h | 2,210 | 7,167 |
Outage episodes by size in 2021: 113 reached 100+ customers, 37 reached 1,000+ customers, 0 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 Hamilton County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| Duke Energy Indiana, LLC | 2021 | 3.4 hrs | 1.11 | 2.1 hrs | 0.94 |
| Indiana Michigan Power Co | 2021 | 11.2 hrs | 1.57 | 3.8 hrs | 1.09 |
| AES Indiana | 2021 | 2.9 hrs | 1.61 | 1.7 hrs | 1.31 |
| Boone County Rural EMC | 2021 | 1.7 hrs | 1.31 | 1.7 hrs | 1.31 |
| Duke Energy | - | - | - | - | - |
| City of Frankfort - (IN) | - | - | - | - | - |
| NineStar Connect | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 86% of Indiana's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 159,187 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. Hamilton County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Hamilton County, IN annual power outage report, 2021, 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/2021/indiana/hamilton-county