County annual report · FIPS 17127
2015 Massac County, IL Power Outage Report
In 2015, customers in Massac County, IL went without power for an average of 0.2 hours, a total of 1,839 customer-hours (Illinois average 2.3 hours). That ranks 97th worst of 100 Illinois counties and 2238th of 2,484 nationally.
Compared with IL, the US
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Massac County, 2015
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 12, 2015 02:45 | June 12, 2015 04:15 | 1h 30m | 787 | 787 |
| 2 | May 6, 2015 07:15 | May 6, 2015 07:45 | 30m | 777 | 196 |
| 3 | December 14, 2015 09:00 | December 14, 2015 19:00 | 10h | 310 | 488 |
| 4 | June 10, 2015 00:00 | June 10, 2015 04:30 | 4h 30m | 59 | 104 |
| 5 | November 27, 2015 14:30 | November 27, 2015 15:00 | 30m | 43 | 19 |
| 6 | July 9, 2015 04:45 | July 9, 2015 08:30 | 3h 45m | 12 | 37 |
| 7 | April 16, 2015 18:00 | April 16, 2015 20:30 | 2h 30m | 9 | 22 |
| 8 | April 17, 2015 14:00 | April 17, 2015 15:30 | 1h 30m | 7 | 11 |
| 9 | November 3, 2015 21:15 | November 3, 2015 22:00 | 45m | 6 | 5 |
| 10 | April 20, 2015 15:30 | April 20, 2015 17:00 | 1h 30m | 5 | 8 |
Outage episodes by size in 2015: 3 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 2015, 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 | 2015 | 5.9 hrs | 1.39 | 2.2 hrs | 1.04 |
| Southeastern IL Elec Coop, Inc | 2015 | 2.9 hrs | 1.58 | 2.7 hrs | 1.51 |
| 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 n/a of Illinois's customers in 2015; 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, 2015, 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/2015/illinois/massac-county