County annual report · FIPS 17067
2023 Hancock County, IL Power Outage Report
In 2023, customers in Hancock County, IL went without power for an average of 24.8 hours, a total of 224K customer-hours (Illinois average 4.0 hours). That ranks 10th worst of 102 Illinois counties and 302nd 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 Hancock 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 | June 29, 2023 15:45 | July 4, 2023 22:30 | 5d 6h | 5,674 | 199K |
| 2 | October 2, 2023 10:45 | October 2, 2023 16:30 | 5h 45m | 4,774 | 6,697 |
| 3 | August 5, 2023 06:15 | August 6, 2023 00:00 | 17h 45m | 1,874 | 12K |
| 4 | May 7, 2023 03:45 | May 7, 2023 07:15 | 3h 30m | 342 | 865 |
| 5 | September 2, 2023 08:30 | September 2, 2023 14:30 | 6h | 202 | 422 |
| 6 | July 29, 2023 04:00 | July 29, 2023 07:30 | 3h 30m | 175 | 318 |
| 7 | October 14, 2023 14:45 | October 14, 2023 20:15 | 5h 30m | 121 | 666 |
| 8 | August 19, 2023 14:00 | August 19, 2023 16:15 | 2h 15m | 106 | 120 |
| 9 | October 16, 2023 14:15 | October 16, 2023 18:15 | 4h | 88 | 222 |
| 10 | July 12, 2023 15:30 | July 12, 2023 21:00 | 5h 30m | 79 | 151 |
Outage episodes by size in 2023: 8 reached 100+ customers, 3 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 Hancock 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 |
| Adams Electric Coop | 2018 | 2.2 hrs | 1.12 | 2.2 hrs | 1.12 |
| Ameren | - | - | - | - | - |
| McDonough Power Coop | - | - | - | - | - |
| Western Illinois Elec 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 ÷ 9,010 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. Hancock County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Hancock 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/hancock-county