County annual report · FIPS 17073
2023 Henry County, IL Power Outage Report
In 2023, customers in Henry County, IL went without power for an average of 3.4 hours, a total of 140K customer-hours (Illinois average 4.0 hours). That ranks 61st worst of 102 Illinois counties and 1824th 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 Henry 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 | March 31, 2023 23:45 | April 3, 2023 11:45 | 2d 12h | 5,312 | 59K |
| 2 | April 4, 2023 13:15 | April 6, 2023 08:45 | 1d 19h | 2,381 | 33K |
| 3 | April 22, 2023 04:45 | April 22, 2023 06:45 | 2h | 2,232 | 4,225 |
| 4 | February 9, 2023 01:45 | February 9, 2023 08:00 | 6h 15m | 2,197 | 3,258 |
| 5 | October 12, 2023 18:15 | October 12, 2023 19:30 | 1h 15m | 1,467 | 1,471 |
| 6 | May 8, 2023 00:15 | May 9, 2023 22:45 | 1d 22h | 1,424 | 4,091 |
| 7 | January 26, 2023 15:45 | January 26, 2023 18:30 | 2h 45m | 1,382 | 348 |
| 8 | July 29, 2023 01:15 | July 30, 2023 14:45 | 1d 13h | 1,304 | 5,649 |
| 9 | September 12, 2023 22:30 | September 13, 2023 00:45 | 2h 15m | 813 | 1,258 |
| 10 | June 11, 2023 16:00 | June 11, 2023 22:00 | 6h | 800 | 1,406 |
Outage episodes by size in 2023: 34 reached 100+ customers, 8 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 Henry 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 |
| MidAmerican Energy Co | 2023 | 2.8 hrs | 1.13 | 78 min | 0.83 |
| Commonwealth Edison Co | 2023 | 1.6 hrs | 0.61 | 35 min | 0.48 |
| Corn Belt Energy Corporation | 2023 | 6.5 hrs | 4.54 | 2.6 hrs | 3.88 |
| Jo-Carroll Energy, Inc | 2023 | 2.9 hrs | 0.71 | 31 min | 0.27 |
| Ameren | - | - | - | - | - |
| City of Geneseo - (IL) | - | - | - | - | - |
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 ÷ 40,978 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. Henry County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Henry 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/henry-county