County annual report · FIPS 17147
2021 Piatt County, IL Power Outage Report
In 2021, customers in Piatt County, IL went without power for an average of 6.6 hours, a total of 41K customer-hours (Illinois average 2.3 hours). That ranks 12th worst of 102 Illinois counties and 1073rd 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 Piatt 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 | March 18, 2021 10:00 | March 19, 2021 04:15 | 18h 15m | 5,305 | 23K |
| 2 | January 3, 2021 04:45 | January 5, 2021 05:30 | 2d | 1,124 | 5,401 |
| 3 | July 16, 2021 02:00 | July 16, 2021 04:15 | 2h 15m | 529 | 798 |
| 4 | August 26, 2021 19:15 | August 26, 2021 23:45 | 4h 30m | 336 | 764 |
| 5 | October 13, 2021 20:30 | October 13, 2021 21:15 | 45m | 328 | 192 |
| 6 | January 26, 2021 00:00 | January 26, 2021 03:15 | 3h 15m | 327 | 941 |
| 7 | October 21, 2021 16:30 | October 21, 2021 19:00 | 2h 30m | 307 | 426 |
| 8 | October 11, 2021 21:45 | October 12, 2021 01:15 | 3h 30m | 228 | 672 |
| 9 | November 15, 2021 15:00 | November 15, 2021 21:45 | 6h 45m | 227 | 417 |
| 10 | December 25, 2021 09:30 | December 25, 2021 13:45 | 4h 15m | 226 | 746 |
Outage episodes by size in 2021: 16 reached 100+ customers, 2 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 Piatt 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 |
| Corn Belt Energy Corporation | 2021 | 12.3 hrs | 6.64 | 3.7 hrs | 4.71 |
| Eastern Illinois Elec Coop | 2021 | 5.1 hrs | 2.37 | 2.2 hrs | 1.25 |
| Ameren | - | - | - | - | - |
| Coles-Moultrie Electric Coop | - | - | - | - | - |
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 ÷ 6,148 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. Piatt County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Piatt 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/piatt-county