County annual report · FIPS 17009
2024 Brown County, IL Power Outage Report
In 2024, customers in Brown County, IL went without power for an average of 3.3 hours, a total of 9,863 customer-hours (Illinois average 3.0 hours). That ranks 49th worst of 102 Illinois counties and 2026th of 2,990 nationally.
Compared with IL, the US and 2023
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Brown County, 2024
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 25, 2024 19:30 | June 26, 2024 23:45 | 1d 4h | 1,823 | 9,226 |
| 2 | June 28, 2024 01:45 | June 28, 2024 03:00 | 1h 15m | 102 | 63 |
| 3 | June 13, 2024 23:45 | June 14, 2024 08:45 | 9h | 22 | 144 |
| 4 | September 6, 2024 09:15 | September 6, 2024 11:15 | 2h | 14 | 28 |
| 5 | May 7, 2024 17:30 | May 7, 2024 18:00 | 30m | 11 | 6 |
| 6 | March 31, 2024 17:30 | March 31, 2024 22:15 | 4h 45m | 10 | 48 |
| 7 | December 11, 2024 15:00 | December 11, 2024 17:45 | 2h 45m | 10 | 28 |
| 8 | January 10, 2024 18:45 | January 10, 2024 20:15 | 1h 30m | 8 | 12 |
| 9 | October 19, 2024 15:30 | October 19, 2024 17:30 | 2h | 8 | 16 |
| 10 | December 16, 2024 16:15 | December 16, 2024 16:30 | 15m | 8 | 2 |
Outage episodes by size in 2024: 2 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 Brown County reported on EIA Form 861 for 2024, 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 | 2024 | 3.7 hrs | 1.13 | 2.0 hrs | 0.91 |
| Adams Electric Coop | 2018 | 2.2 hrs | 1.12 | 2.2 hrs | 1.12 |
| Ameren | - | - | - | - | - |
| Illinois Rural Electric 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 n/a of Illinois's customers in 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,007 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. Brown County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Brown County, IL annual power outage report, 2024, 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/2024/illinois/brown-county