County annual report · FIPS 17117
2021 Macoupin County, IL Power Outage Report
In 2021, customers in Macoupin County, IL went without power for an average of 3.7 hours, a total of 58K customer-hours (Illinois average 2.3 hours). That ranks 33rd worst of 102 Illinois counties and 1608th of 2,974 nationally.
Compared with IL, the US and 2020
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Macoupin County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 16, 2021 16:45 | December 17, 2021 05:15 | 12h 30m | 4,102 | 18K |
| 2 | April 10, 2021 15:00 | April 10, 2021 17:15 | 2h 15m | 2,089 | 2,211 |
| 3 | July 5, 2021 18:00 | July 6, 2021 17:00 | 23h | 1,636 | 9,449 |
| 4 | January 14, 2021 21:15 | January 14, 2021 23:00 | 1h 45m | 748 | 543 |
| 5 | October 24, 2021 06:30 | October 25, 2021 17:00 | 1d 10h | 705 | 3,071 |
| 6 | June 1, 2021 15:30 | June 1, 2021 17:15 | 1h 45m | 392 | 233 |
| 7 | April 27, 2021 00:30 | April 27, 2021 05:45 | 5h 15m | 385 | 1,329 |
| 8 | April 22, 2021 19:15 | April 23, 2021 01:45 | 6h 30m | 374 | 1,361 |
| 9 | May 17, 2021 01:15 | May 17, 2021 11:30 | 10h 15m | 365 | 1,387 |
| 10 | March 8, 2021 21:00 | March 9, 2021 00:45 | 3h 45m | 253 | 327 |
Outage episodes by size in 2021: 28 reached 100+ customers, 3 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 Macoupin County reported on EIA Form 861 for 2021, 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 | 2021 | 3.2 hrs | 1.11 | 2.0 hrs | 0.88 |
| Southwestern Electric Coop Inc - (IL) | 2021 | 3.9 hrs | 2.53 | 3.8 hrs | 2.48 |
| Rural Electric Conven Coop | 2018 | 4.0 hrs | 1.91 | 2.0 hrs | 1.84 |
| Ameren | - | - | - | - | - |
| Illinois Rural Electric Coop | - | - | - | - | - |
| M J M Electric Cooperative Inc | - | - | - | - | - |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 15,453 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. Macoupin County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Macoupin County, IL annual power outage report, 2021, 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/2021/illinois/macoupin-county