County annual report · FIPS 17015
2021 Carroll County, IL Power Outage Report
In 2021, customers in Carroll County, IL went without power for an average of 3.6 hours, a total of 26K customer-hours (Illinois average 2.3 hours). That ranks 37th worst of 102 Illinois counties and 1667th of 2,974 nationally.
Compared with IL, the US and 2020
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Carroll 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 10, 2021 22:45 | August 12, 2021 15:15 | 1d 16h | 2,679 | 9,848 |
| 2 | August 26, 2021 06:45 | August 26, 2021 07:00 | 15m | 1,100 | 275 |
| 3 | August 24, 2021 22:15 | August 25, 2021 21:15 | 23h | 882 | 3,456 |
| 4 | June 21, 2021 02:30 | June 21, 2021 09:15 | 6h 45m | 572 | 2,211 |
| 5 | January 4, 2021 11:30 | January 4, 2021 21:45 | 10h 15m | 553 | 1,320 |
| 6 | June 20, 2021 05:45 | June 20, 2021 07:00 | 1h 15m | 402 | 295 |
| 7 | January 1, 2021 22:00 | January 2, 2021 03:45 | 5h 45m | 155 | 397 |
| 8 | June 10, 2021 01:45 | June 10, 2021 15:15 | 13h 30m | 151 | 479 |
| 9 | December 16, 2021 02:15 | December 17, 2021 01:00 | 22h 45m | 135 | 1,165 |
| 10 | February 4, 2021 23:15 | February 5, 2021 02:00 | 2h 45m | 133 | 366 |
Outage episodes by size in 2021: 14 reached 100+ customers, 2 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 Carroll 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 |
|---|---|---|---|---|---|
| Commonwealth Edison Co | 2021 | 1.7 hrs | 0.77 | 43 min | 0.59 |
| Jo-Carroll Energy, Inc | 2021 | 66 min | 0.51 | 37 min | 0.41 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 98% of Illinois's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,336 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. Carroll County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Carroll County, IL 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/illinois/carroll-county