County annual report · FIPS 18083
2021 Knox County, IN Power Outage Report
In 2021, customers in Knox County, IN went without power for an average of 2.4 hours, a total of 38K customer-hours (Indiana average 4.4 hours). That ranks 48th worst of 92 Indiana counties and 2068th 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 Knox 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 | September 7, 2021 01:45 | September 7, 2021 06:45 | 5h | 2,847 | 12K |
| 2 | October 2, 2021 12:45 | October 2, 2021 15:15 | 2h 30m | 1,721 | 3,012 |
| 3 | June 17, 2021 16:45 | June 17, 2021 18:45 | 2h | 1,590 | 1,570 |
| 4 | February 8, 2021 18:15 | February 8, 2021 19:15 | 1h | 1,467 | 1,047 |
| 5 | December 1, 2021 09:30 | December 1, 2021 09:45 | 15m | 1,369 | 342 |
| 6 | November 21, 2021 21:15 | November 22, 2021 11:15 | 14h | 719 | 3,784 |
| 7 | October 19, 2021 16:45 | October 19, 2021 17:15 | 30m | 628 | 277 |
| 8 | December 11, 2021 04:45 | December 12, 2021 00:15 | 19h 30m | 609 | 2,830 |
| 9 | August 12, 2021 23:00 | August 13, 2021 17:00 | 18h | 426 | 2,531 |
| 10 | June 19, 2021 11:00 | June 20, 2021 05:15 | 18h 15m | 313 | 1,812 |
Outage episodes by size in 2021: 22 reached 100+ customers, 5 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 Knox 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 |
| AES Indiana | 2021 | 2.9 hrs | 1.61 | 1.7 hrs | 1.31 |
| Utilities Dist-Western IN REMC | 2021 | 10.1 hrs | 2.35 | 3.8 hrs | 1.76 |
| Western Indiana Energy REMC | 2021 | 5.9 hrs | 2.45 | 3.8 hrs | 2.05 |
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 ÷ 15,843 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. Knox County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Knox 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/knox-county