County annual report · FIPS 17065
2020 Hamilton County, IL Power Outage Report
In 2020, customers in Hamilton County, IL went without power for an average of 5.6 hours, a total of 26K customer-hours (Illinois average 5.9 hours). That ranks 33rd worst of 102 Illinois counties and 1306th of 3,019 nationally.
Compared with IL, the US and 2019
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Hamilton County, 2020
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 11, 2020 00:45 | August 12, 2020 13:15 | 1d 12h | 779 | 8,983 |
| 2 | August 22, 2020 09:00 | August 24, 2020 12:15 | 2d 3h | 405 | 11K |
| 3 | January 28, 2020 02:00 | January 28, 2020 03:00 | 1h | 328 | 178 |
| 4 | July 10, 2020 09:30 | July 16, 2020 13:30 | 6d 4h | 280 | 918 |
| 5 | June 20, 2020 17:15 | June 20, 2020 19:30 | 2h 15m | 279 | 560 |
| 6 | January 13, 2020 00:15 | January 13, 2020 04:00 | 3h 45m | 275 | 646 |
| 7 | July 5, 2020 21:00 | July 5, 2020 23:00 | 2h | 129 | 81 |
| 8 | March 24, 2020 18:00 | March 24, 2020 19:45 | 1h 45m | 121 | 128 |
| 9 | October 3, 2020 16:45 | October 3, 2020 17:45 | 1h | 117 | 65 |
| 10 | September 10, 2020 18:00 | September 10, 2020 21:45 | 3h 45m | 99 | 341 |
Outage episodes by size in 2020: 9 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 2020, 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 | 2020 | 2.8 hrs | 1.23 | 1.5 hrs | 0.99 |
| Tri-County Electric Coop, Inc (IL) | 2020 | 2.7 hrs | 1.14 | 83 min | 0.85 |
| 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 94% of Illinois's customers in 2020; 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, 2020, 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/2020/illinois/hamilton-county