County annual report · FIPS 17125
2022 Mason County, IL Power Outage Report
In 2022, customers in Mason County, IL went without power for an average of 2.5 hours, a total of 12K customer-hours (Illinois average 1.6 hours). That ranks 46th worst of 102 Illinois counties and 2102nd 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 Mason 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 | October 25, 2022 16:45 | October 26, 2022 16:30 | 23h 45m | 793 | 1,900 |
| 2 | June 28, 2022 05:45 | June 28, 2022 08:30 | 2h 45m | 437 | 1,097 |
| 3 | June 15, 2022 04:00 | June 15, 2022 06:45 | 2h 45m | 436 | 1,104 |
| 4 | June 17, 2022 09:15 | June 17, 2022 21:15 | 12h | 436 | 1,960 |
| 5 | June 24, 2022 08:30 | June 24, 2022 10:00 | 1h 30m | 436 | 535 |
| 6 | May 21, 2022 08:00 | May 21, 2022 11:15 | 3h 15m | 311 | 854 |
| 7 | May 21, 2022 04:45 | May 21, 2022 05:45 | 1h | 251 | 202 |
| 8 | November 27, 2022 12:45 | November 27, 2022 17:15 | 4h 30m | 213 | 760 |
| 9 | August 2, 2022 13:45 | August 2, 2022 20:15 | 6h 30m | 201 | 170 |
| 10 | May 11, 2022 14:45 | May 12, 2022 00:15 | 9h 30m | 196 | 276 |
Outage episodes by size in 2022: 13 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 Mason 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 |
| Menard Electric Coop | 2022 | 2.0 hrs | 1.39 | 2.0 hrs | 1.39 |
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 ÷ 4,847 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. Mason County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mason 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/mason-county