County annual report · FIPS 17017
2019 Cass County, IL Power Outage Report
In 2019, customers in Cass County, IL went without power for an average of 0.9 hours, a total of 5,251 customer-hours (Illinois average 1.8 hours). That ranks 93rd worst of 102 Illinois counties and 2549th of 2,945 nationally.
Compared with IL, the US and 2018
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Cass County, 2019
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 5, 2019 20:15 | June 6, 2019 07:15 | 11h | 1,258 | 1,044 |
| 2 | March 14, 2019 16:30 | March 14, 2019 18:15 | 1h 45m | 337 | 422 |
| 3 | March 15, 2019 00:45 | March 15, 2019 03:15 | 2h 30m | 336 | 512 |
| 4 | March 14, 2019 21:30 | March 14, 2019 22:15 | 45m | 335 | 227 |
| 5 | October 22, 2019 14:15 | October 22, 2019 19:00 | 4h 45m | 274 | 145 |
| 6 | January 29, 2019 05:45 | January 29, 2019 09:00 | 3h 15m | 237 | 314 |
| 7 | June 26, 2019 02:15 | June 26, 2019 09:00 | 6h 45m | 115 | 71 |
| 8 | June 14, 2019 13:15 | June 14, 2019 14:15 | 1h | 105 | 54 |
| 9 | May 23, 2019 04:45 | May 25, 2019 00:15 | 1d 19h | 78 | 933 |
| 10 | August 2, 2019 06:45 | August 2, 2019 09:45 | 3h | 67 | 201 |
Outage episodes by size in 2019: 8 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 Cass County reported on EIA Form 861 for 2019, 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 |
| Menard Electric Coop | 2018 | 2.9 hrs | 1.75 | 2.9 hrs | 1.75 |
| 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 99% of Illinois's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 6,087 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. Cass County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cass County, IL annual power outage report, 2019, 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/2019/illinois/cass-county