County annual report · FIPS 17127
2022 Massac County, IL Power Outage Report
In 2022, customers in Massac County, IL went without power for an average of 0.2 hours, a total of 1,793 customer-hours (Illinois average 1.6 hours). That ranks 102nd worst of 102 Illinois counties and 2901st of 2,976 nationally.
Compared with IL, the US and 2021
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Massac County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 21, 2022 20:45 | September 21, 2022 21:30 | 45m | 729 | 365 |
| 2 | August 8, 2022 20:15 | August 8, 2022 22:00 | 1h 45m | 321 | 321 |
| 3 | May 5, 2022 07:15 | May 5, 2022 08:00 | 45m | 320 | 163 |
| 4 | April 6, 2022 09:45 | April 6, 2022 11:00 | 1h 15m | 319 | 399 |
| 5 | August 9, 2022 02:30 | August 9, 2022 02:45 | 15m | 319 | 80 |
| 6 | July 21, 2022 15:45 | July 21, 2022 20:00 | 4h 15m | 137 | 223 |
| 7 | July 29, 2022 07:45 | July 29, 2022 13:00 | 5h 15m | 29 | 84 |
| 8 | July 19, 2022 13:30 | July 19, 2022 16:30 | 3h | 8 | 24 |
| 9 | November 26, 2022 18:45 | November 26, 2022 20:45 | 2h | 6 | 10 |
| 10 | December 23, 2022 23:15 | December 24, 2022 01:45 | 2h 30m | 6 | 14 |
Outage episodes by size in 2022: 6 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 Massac County reported on EIA Form 861 for 2022, 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 | 2022 | 2.7 hrs | 1.02 | 1.9 hrs | 0.88 |
| Southeastern IL Elec Coop, Inc | 2022 | 2.9 hrs | 1.63 | 2.3 hrs | 1.34 |
| Southern Illinois Elec Coop | - | - | - | - | - |
| City of Metropolis - (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 98% of Illinois's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,175 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. Massac County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Massac County, IL annual power outage report, 2022, 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/2022/illinois/massac-county