County annual report · FIPS 17073
2015 Henry County, IL Power Outage Report
In 2015, customers in Henry County, IL went without power for an average of 3.2 hours, a total of 130K customer-hours (Illinois average 2.3 hours). That ranks 28th worst of 100 Illinois counties and 868th of 2,484 nationally.
Compared with IL, the US
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Henry County, 2015
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 23, 2015 21:30 | August 24, 2015 07:30 | 10h | 2,408 | 21K |
| 2 | April 24, 2015 05:00 | April 24, 2015 08:00 | 3h | 2,305 | 6,624 |
| 3 | December 28, 2015 13:00 | December 31, 2015 00:15 | 2d 11h | 2,286 | 66K |
| 4 | December 1, 2015 04:15 | December 1, 2015 12:00 | 7h 45m | 1,461 | 9,299 |
| 5 | May 5, 2015 05:30 | May 5, 2015 12:30 | 7h | 1,442 | 5,769 |
| 6 | April 21, 2015 19:00 | April 22, 2015 02:30 | 7h 30m | 1,289 | 1,485 |
| 7 | November 18, 2015 05:30 | November 18, 2015 08:15 | 2h 45m | 1,164 | 2,234 |
| 8 | June 24, 2015 00:00 | June 24, 2015 06:30 | 6h 30m | 1,086 | 2,771 |
| 9 | November 4, 2015 20:30 | November 4, 2015 22:45 | 2h 15m | 785 | 794 |
| 10 | May 8, 2015 01:45 | May 8, 2015 04:15 | 2h 30m | 654 | 753 |
Outage episodes by size in 2015: 21 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 2015, 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 | 2015 | 5.9 hrs | 1.39 | 2.2 hrs | 1.04 |
| MidAmerican Energy Co | 2015 | 2.2 hrs | 1.05 | 87 min | 0.88 |
| Commonwealth Edison Co | 2015 | 1.8 hrs | 0.97 | 72 min | 0.86 |
| Corn Belt Energy Corporation | 2015 | 10.7 hrs | 5.30 | 4.1 hrs | 4.20 |
| Ameren | - | - | - | - | - |
| Jo-Carroll Energy, Inc | - | - | - | - | - |
| 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 2015; 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, 2015, 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/2015/illinois/henry-county