County annual report · FIPS 17073
2018 Henry County, IL Power Outage Report
In 2018, customers in Henry County, IL went without power for an average of 0.5 hours, a total of 22K customer-hours (Illinois average 2.5 hours). That ranks 95th worst of 102 Illinois counties and 2485th of 2,798 nationally.
Compared with IL, the US and 2017
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Henry County, 2018
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 14, 2018 02:00 | July 14, 2018 12:15 | 10h 15m | 1,243 | 1,310 |
| 2 | March 24, 2018 14:00 | March 24, 2018 22:30 | 8h 30m | 575 | 1,436 |
| 3 | November 25, 2018 18:15 | November 27, 2018 01:45 | 1d 7h | 560 | 8,169 |
| 4 | February 22, 2018 12:15 | February 22, 2018 19:30 | 7h 15m | 387 | 546 |
| 5 | September 25, 2018 19:15 | September 26, 2018 09:00 | 13h 45m | 365 | 412 |
| 6 | October 20, 2018 17:00 | October 21, 2018 05:45 | 12h 45m | 359 | 1,213 |
| 7 | April 14, 2018 14:00 | April 14, 2018 23:15 | 9h 15m | 260 | 643 |
| 8 | August 28, 2018 18:15 | August 30, 2018 02:30 | 1d 8h | 167 | 899 |
| 9 | October 15, 2018 01:15 | October 15, 2018 05:45 | 4h 30m | 154 | 285 |
| 10 | March 22, 2018 15:00 | March 22, 2018 17:15 | 2h 15m | 143 | 196 |
Outage episodes by size in 2018: 14 reached 100+ customers, 1 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 2018, 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 | 2018 | 3.5 hrs | 1.06 | 1.8 hrs | 0.90 |
| MidAmerican Energy Co | 2018 | 1.9 hrs | 1.18 | 75 min | 0.96 |
| Commonwealth Edison Co | 2018 | 2.0 hrs | 0.82 | 58 min | 0.70 |
| Corn Belt Energy Corporation | 2018 | 6.9 hrs | 4.02 | 3.3 hrs | 3.75 |
| Jo-Carroll Energy, Inc | 2018 | 78 min | 0.51 | 59 min | 0.40 |
| 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 92% of Illinois's customers in 2018; 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, 2018, 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/2018/illinois/henry-county