County annual report · FIPS 17013
2023 Calhoun County, IL Power Outage Report
In 2023, customers in Calhoun County, IL went without power for an average of 4.6 hours, a total of 8,646 customer-hours (Illinois average 4.0 hours). That ranks 54th worst of 102 Illinois counties and 1541st of 2,977 nationally.
Compared with IL, the US and 2022
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Calhoun County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 29, 2023 20:45 | July 30, 2023 07:15 | 10h 30m | 890 | 2,333 |
| 2 | July 5, 2023 00:45 | July 5, 2023 03:30 | 2h 45m | 428 | 714 |
| 3 | August 5, 2023 05:30 | August 5, 2023 08:45 | 3h 15m | 332 | 294 |
| 4 | March 31, 2023 07:30 | March 31, 2023 16:45 | 9h 15m | 287 | 522 |
| 5 | July 1, 2023 23:30 | July 2, 2023 23:15 | 23h 45m | 268 | 1,259 |
| 6 | February 27, 2023 11:45 | February 27, 2023 14:30 | 2h 45m | 267 | 602 |
| 7 | October 29, 2023 10:45 | October 29, 2023 17:15 | 6h 30m | 149 | 267 |
| 8 | April 5, 2023 02:15 | April 5, 2023 06:15 | 4h | 136 | 335 |
| 9 | August 22, 2023 14:15 | August 22, 2023 16:15 | 2h | 133 | 233 |
| 10 | June 1, 2023 04:15 | June 1, 2023 11:00 | 6h 45m | 77 | 501 |
Outage episodes by size in 2023: 9 reached 100+ customers, 0 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 Calhoun County reported on EIA Form 861 for 2023, 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 |
|---|---|---|---|---|---|
| Ameren Illinois Company | 2023 | 9.9 hrs | 1.33 | 1.9 hrs | 0.82 |
| Illinois Rural Electric Coop | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Illinois's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,865 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. Calhoun County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Calhoun County, IL annual power outage report, 2023, 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/2023/illinois/calhoun-county