County annual report · FIPS 17155
2018 Putnam County, IL Power Outage Report
In 2018, customers in Putnam County, IL went without power for an average of 4.4 hours, a total of 11K customer-hours (Illinois average 2.5 hours). That ranks 23rd worst of 102 Illinois counties and 1149th of 2,798 nationally.
Compared with IL, the US and 2017
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Putnam County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 13, 2018 21:00 | May 13, 2018 23:30 | 2h 30m | 816 | 1,225 |
| 2 | November 26, 2018 00:15 | November 27, 2018 16:45 | 1d 16h | 270 | 3,846 |
| 3 | December 2, 2018 09:45 | December 2, 2018 12:30 | 2h 45m | 162 | 446 |
| 4 | July 26, 2018 17:45 | July 26, 2018 19:00 | 1h 15m | 129 | 65 |
| 5 | September 20, 2018 23:15 | September 24, 2018 02:45 | 3d 3h | 107 | 1,554 |
| 6 | November 25, 2018 17:30 | November 25, 2018 22:15 | 4h 45m | 105 | 499 |
| 7 | October 30, 2018 13:30 | October 30, 2018 14:45 | 1h 15m | 104 | 125 |
| 8 | October 21, 2018 22:30 | October 21, 2018 23:45 | 1h 15m | 92 | 115 |
| 9 | October 28, 2018 16:15 | October 28, 2018 19:45 | 3h 30m | 79 | 238 |
| 10 | November 11, 2018 09:15 | November 11, 2018 21:45 | 12h 30m | 72 | 696 |
Outage episodes by size in 2018: 7 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 Putnam County reported on EIA Form 861 for 2018, 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 | 2018 | 3.5 hrs | 1.06 | 1.8 hrs | 0.90 |
| Corn Belt Energy Corporation | 2018 | 6.9 hrs | 4.02 | 3.3 hrs | 3.75 |
| 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 92% of Illinois's customers in 2018; 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, 2018, 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/2018/illinois/putnam-county