County annual report · FIPS 18097
2021 Marion County, IN Power Outage Report
In 2021, customers in Marion County, IN went without power for an average of 3.3 hours, a total of 1.6M customer-hours (Indiana average 4.4 hours). That ranks 36th worst of 92 Indiana counties and 1735th 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 Marion 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 24, 2021 12:15 | October 21, 2021 02:00 | 57d 13h | 28,735 | 434K |
| 2 | November 7, 2021 12:45 | December 31, 2021 00:15 | 53d 11h | 12,401 | 339K |
| 3 | June 11, 2021 06:45 | June 20, 2021 07:45 | 9d 1h | 11,429 | 145K |
| 4 | October 21, 2021 05:16 | November 5, 2021 11:15 | 15d 5h | 10,036 | 43K |
| 5 | March 14, 2021 20:30 | March 17, 2021 03:45 | 2d 7h | 9,292 | 60K |
| 6 | June 25, 2021 09:30 | July 4, 2021 01:00 | 8d 15h | 6,792 | 77K |
| 7 | July 21, 2021 10:00 | July 26, 2021 06:00 | 4d 20h | 6,060 | 20K |
| 8 | August 16, 2021 10:45 | August 22, 2021 08:30 | 5d 21h | 5,916 | 25K |
| 9 | August 2, 2021 10:15 | August 9, 2021 05:30 | 6d 19h | 5,396 | 19K |
| 10 | May 11, 2021 03:15 | May 11, 2021 06:00 | 2h 45m | 5,229 | 2,643 |
Outage episodes by size in 2021: 111 reached 100+ customers, 66 reached 1,000+ customers, 4 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 Marion 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 |
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 ÷ 493,304 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. Marion County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Marion 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/marion-county