County annual report · FIPS 17065
2018 Hamilton County, IL Power Outage Report
In 2018, customers in Hamilton County, IL went without power for an average of 1.5 hours, a total of 6,973 customer-hours (Illinois average 2.5 hours). That ranks 74th worst of 102 Illinois counties and 2086th 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 Hamilton 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 | June 24, 2018 08:15 | June 24, 2018 09:30 | 1h 15m | 565 | 142 |
| 2 | June 24, 2018 10:15 | June 24, 2018 10:30 | 15m | 565 | 141 |
| 3 | June 24, 2018 11:15 | June 24, 2018 11:30 | 15m | 565 | 141 |
| 4 | June 24, 2018 12:30 | June 24, 2018 12:45 | 15m | 565 | 141 |
| 5 | June 24, 2018 14:45 | June 24, 2018 16:00 | 1h 15m | 565 | 565 |
| 6 | June 24, 2018 17:00 | June 24, 2018 17:15 | 15m | 565 | 141 |
| 7 | June 24, 2018 18:15 | June 24, 2018 20:45 | 2h 30m | 565 | 706 |
| 8 | June 24, 2018 21:45 | June 24, 2018 22:00 | 15m | 565 | 141 |
| 9 | June 24, 2018 22:45 | June 25, 2018 00:00 | 1h 15m | 565 | 565 |
| 10 | August 20, 2018 21:00 | August 21, 2018 05:30 | 8h 30m | 386 | 980 |
Outage episodes by size in 2018: 16 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 Hamilton 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 |
|---|---|---|---|---|---|
| Southeastern IL Elec Coop, Inc | 2018 | 10.8 hrs | 2.74 | 2.2 hrs | 1.43 |
| Tri-County Electric Coop, Inc (IL) | 2018 | 4.7 hrs | 1.74 | 83 min | 0.81 |
| Wayne-White Counties Elec Coop | - | - | - | - | - |
| City of McLeansboro - (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 ÷ 4,619 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. Hamilton County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Hamilton 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/hamilton-county