County annual report · FIPS 17009
2018 Brown County, IL Power Outage Report
In 2018, customers in Brown County, IL went without power for an average of 0.3 hours, a total of 977 customer-hours (Illinois average 2.5 hours). That ranks 100th worst of 102 Illinois counties and 2581st 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 Brown 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 | May 20, 2018 17:00 | May 20, 2018 17:30 | 30m | 56 | 28 |
| 2 | June 28, 2018 21:15 | June 29, 2018 11:00 | 13h 45m | 45 | 409 |
| 3 | October 10, 2018 19:45 | October 10, 2018 23:45 | 4h | 28 | 11 |
| 4 | October 4, 2018 02:30 | October 4, 2018 07:30 | 5h | 26 | 64 |
| 5 | September 21, 2018 15:45 | September 21, 2018 19:00 | 3h 15m | 23 | 66 |
| 6 | June 25, 2018 23:30 | June 26, 2018 06:15 | 6h 45m | 21 | 54 |
| 7 | June 28, 2018 00:15 | June 28, 2018 04:30 | 4h 15m | 20 | 22 |
| 8 | September 28, 2018 17:00 | September 28, 2018 18:45 | 1h 45m | 17 | 30 |
| 9 | April 26, 2018 15:45 | April 26, 2018 16:30 | 45m | 13 | 7 |
| 10 | July 17, 2018 20:45 | July 17, 2018 23:45 | 3h | 12 | 33 |
Outage episodes by size in 2018: 0 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 Brown 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 |
| 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 92% of Illinois's customers in 2018; 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, 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/brown-county