County annual report · FIPS 17071
2018 Henderson County, IL Power Outage Report
In 2018, customers in Henderson County, IL went without power for an average of 1.5 hours, a total of 5,096 customer-hours (Illinois average 2.5 hours). That ranks 75th worst of 102 Illinois counties and 2091st 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 Henderson 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 | January 7, 2018 19:30 | January 8, 2018 00:45 | 5h 15m | 227 | 509 |
| 2 | September 18, 2018 21:30 | September 19, 2018 01:00 | 3h 30m | 214 | 695 |
| 3 | September 7, 2018 16:30 | September 7, 2018 18:45 | 2h 15m | 203 | 166 |
| 4 | October 5, 2018 07:45 | October 5, 2018 11:15 | 3h 30m | 133 | 352 |
| 5 | August 29, 2018 02:30 | August 30, 2018 02:00 | 23h 30m | 129 | 837 |
| 6 | July 1, 2018 20:15 | July 2, 2018 13:15 | 17h | 97 | 698 |
| 7 | July 14, 2018 04:00 | July 14, 2018 13:45 | 9h 45m | 72 | 255 |
| 8 | March 27, 2018 04:45 | March 27, 2018 08:45 | 4h | 71 | 137 |
| 9 | January 4, 2018 08:00 | January 4, 2018 11:15 | 3h 15m | 60 | 152 |
| 10 | August 3, 2018 14:30 | August 3, 2018 15:00 | 30m | 37 | 19 |
Outage episodes by size in 2018: 5 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 Henderson 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 |
| 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 92% of Illinois's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,381 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. Henderson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Henderson 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/henderson-county