County annual report · FIPS 17055
2021 Franklin County, IL Power Outage Report
In 2021, customers in Franklin County, IL went without power for an average of 3.5 hours, a total of 68K customer-hours (Illinois average 2.3 hours). That ranks 38th worst of 102 Illinois counties and 1676th 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 Franklin 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 | November 3, 2021 16:45 | November 3, 2021 17:45 | 1h | 5,786 | 1,454 |
| 2 | October 23, 2021 19:00 | October 23, 2021 23:15 | 4h 15m | 3,901 | 5,318 |
| 3 | December 6, 2021 04:45 | December 7, 2021 15:30 | 1d 10h | 1,801 | 15K |
| 4 | October 15, 2021 22:45 | October 16, 2021 12:30 | 13h 45m | 1,253 | 6,590 |
| 5 | July 15, 2021 20:00 | July 16, 2021 01:30 | 5h 30m | 912 | 1,441 |
| 6 | February 28, 2021 20:45 | March 1, 2021 06:30 | 9h 45m | 746 | 5,949 |
| 7 | March 29, 2021 13:15 | March 29, 2021 22:15 | 9h | 636 | 3,526 |
| 8 | May 3, 2021 12:45 | May 3, 2021 13:30 | 45m | 619 | 271 |
| 9 | September 11, 2021 10:00 | September 13, 2021 12:15 | 2d 2h | 609 | 786 |
| 10 | May 9, 2021 12:45 | May 9, 2021 23:30 | 10h 45m | 452 | 1,102 |
Outage episodes by size in 2021: 33 reached 100+ customers, 4 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 Franklin 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 |
| Southeastern IL Elec Coop, Inc | 2021 | 2.2 hrs | 1.32 | 2.0 hrs | 1.25 |
| Tri-County Electric Coop, Inc (IL) | 2021 | 3.5 hrs | 1.86 | 63 min | 1.09 |
| Ameren | - | - | - | - | - |
| Wayne-White Counties Elec Coop | - | - | - | - | - |
| Egyptian Electric Coop Assn | - | - | - | - | - |
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 ÷ 19,260 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. Franklin County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Franklin 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/franklin-county