County annual report · FIPS 17017
2016 Cass County, IL Power Outage Report
In 2016, customers in Cass County, IL went without power for an average of 1.3 hours, a total of 7,962 customer-hours (Illinois average 1.5 hours). That ranks 66th worst of 100 Illinois counties and 1625th of 2,391 nationally.
Compared with IL, the US and 2015
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Cass County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 28, 2016 04:00 | November 28, 2016 06:30 | 2h 30m | 1,930 | 2,967 |
| 2 | March 16, 2016 01:15 | March 16, 2016 07:00 | 5h 45m | 346 | 1,353 |
| 3 | October 14, 2016 15:15 | October 14, 2016 16:30 | 1h 15m | 336 | 196 |
| 4 | April 17, 2016 21:30 | April 17, 2016 22:30 | 1h | 263 | 263 |
| 5 | March 17, 2016 03:15 | March 17, 2016 09:00 | 5h 45m | 256 | 1,350 |
| 6 | January 22, 2016 00:00 | January 22, 2016 00:30 | 30m | 222 | 111 |
| 7 | May 24, 2016 13:15 | May 24, 2016 18:00 | 4h 45m | 39 | 90 |
| 8 | November 14, 2016 17:45 | November 14, 2016 19:00 | 1h 15m | 32 | 40 |
| 9 | October 7, 2016 18:00 | October 7, 2016 19:30 | 1h 30m | 26 | 20 |
| 10 | May 14, 2016 00:30 | May 14, 2016 04:30 | 4h | 21 | 24 |
Outage episodes by size in 2016: 6 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 2016, 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 | 2016 | 4.0 hrs | 1.36 | 2.1 hrs | 1.04 |
| Ameren | - | - | - | - | - |
| Illinois Rural Electric Coop | - | - | - | - | - |
| Menard 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 2016; 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, 2016, 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/2016/illinois/cass-county