County annual report · FIPS 17153
2021 Pulaski County, IL Power Outage Report
In 2021, customers in Pulaski County, IL went without power for an average of 1.9 hours, a total of 6,129 customer-hours (Illinois average 2.3 hours). That ranks 72nd worst of 102 Illinois counties and 2257th 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 Pulaski 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 17, 2021 23:15 | March 18, 2021 00:45 | 1h 30m | 832 | 800 |
| 2 | May 9, 2021 12:00 | May 9, 2021 12:15 | 15m | 831 | 208 |
| 3 | April 18, 2021 23:15 | April 19, 2021 00:30 | 1h 15m | 830 | 216 |
| 4 | April 29, 2021 10:45 | April 29, 2021 11:15 | 30m | 830 | 415 |
| 5 | November 23, 2021 13:45 | November 23, 2021 14:30 | 45m | 794 | 392 |
| 6 | October 3, 2021 16:45 | October 3, 2021 18:15 | 1h 30m | 623 | 534 |
| 7 | June 2, 2021 00:00 | June 2, 2021 01:00 | 1h | 439 | 343 |
| 8 | July 28, 2021 13:00 | July 28, 2021 17:15 | 4h 15m | 223 | 860 |
| 9 | November 24, 2021 07:30 | November 24, 2021 09:15 | 1h 45m | 223 | 390 |
| 10 | April 27, 2021 00:45 | April 27, 2021 02:15 | 1h 30m | 207 | 147 |
Outage episodes by size in 2021: 12 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 Pulaski 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 |
| Southern Illinois Elec Coop | - | - | - | - | - |
| Cairo Public Utility Company | - | - | - | - | - |
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 ÷ 3,212 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. Pulaski County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Pulaski 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/pulaski-county