County annual report · FIPS 17007
2021 Boone County, IL Power Outage Report
In 2021, customers in Boone County, IL went without power for an average of 1.8 hours, a total of 39K customer-hours (Illinois average 2.3 hours). That ranks 75th worst of 102 Illinois counties and 2295th 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 Boone 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 | April 29, 2021 23:15 | April 30, 2021 04:45 | 5h 30m | 1,777 | 1,560 |
| 2 | August 11, 2021 00:00 | August 13, 2021 18:45 | 2d 18h | 1,291 | 15K |
| 3 | February 16, 2021 00:30 | February 16, 2021 03:15 | 2h 45m | 944 | 504 |
| 4 | July 29, 2021 07:30 | July 29, 2021 18:15 | 10h 45m | 676 | 3,496 |
| 5 | August 26, 2021 08:30 | August 26, 2021 08:45 | 15m | 617 | 154 |
| 6 | September 22, 2021 16:45 | September 22, 2021 21:45 | 5h | 427 | 815 |
| 7 | April 26, 2021 15:45 | April 26, 2021 18:30 | 2h 45m | 418 | 217 |
| 8 | June 11, 2021 14:30 | June 11, 2021 22:00 | 7h 30m | 240 | 1,730 |
| 9 | October 25, 2021 04:30 | October 25, 2021 22:30 | 18h | 228 | 1,733 |
| 10 | February 20, 2021 13:30 | February 20, 2021 15:15 | 1h 45m | 219 | 241 |
Outage episodes by size in 2021: 24 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 Boone 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 |
| Rock Energy Cooperative | 2021 | 43 min | 0.47 | - | - |
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 ÷ 20,979 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. Boone County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Boone 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/boone-county