County annual report · FIPS 17155
2023 Putnam County, IL Power Outage Report
In 2023, customers in Putnam County, IL went without power for an average of 16.3 hours, a total of 41K customer-hours (Illinois average 4.0 hours). That ranks 21st worst of 102 Illinois counties and 529th of 2,977 nationally.
Compared with IL, the US and 2022
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Putnam County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 1, 2023 00:00 | April 1, 2023 06:00 | 6h | 2,932 | 5,499 |
| 2 | May 8, 2023 01:15 | May 9, 2023 17:15 | 1d 16h | 1,962 | 19K |
| 3 | February 9, 2023 11:00 | February 9, 2023 11:45 | 45m | 698 | 369 |
| 4 | November 28, 2023 14:45 | November 28, 2023 15:00 | 15m | 511 | 128 |
| 5 | October 31, 2023 18:30 | November 1, 2023 06:45 | 12h 15m | 508 | 3,936 |
| 6 | January 26, 2023 22:00 | January 27, 2023 05:00 | 7h | 272 | 1,076 |
| 7 | December 18, 2023 14:15 | December 18, 2023 18:30 | 4h 15m | 257 | 849 |
| 8 | December 22, 2023 23:00 | December 23, 2023 02:15 | 3h 15m | 227 | 605 |
| 9 | April 13, 2023 16:30 | April 14, 2023 00:00 | 7h 30m | 213 | 378 |
| 10 | July 29, 2023 03:30 | July 30, 2023 23:30 | 1d 20h | 210 | 2,667 |
Outage episodes by size in 2023: 13 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 Putnam County reported on EIA Form 861 for 2023, 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 | 2023 | 9.9 hrs | 1.33 | 1.9 hrs | 0.82 |
| Corn Belt Energy Corporation | 2023 | 6.5 hrs | 4.54 | 2.6 hrs | 3.88 |
| Ameren | - | - | - | - | - |
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 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,501 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. Putnam County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Putnam County, IL annual power outage report, 2023, 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/2023/illinois/putnam-county