County annual report · FIPS 17037
2023 DeKalb County, IL Power Outage Report
In 2023, customers in DeKalb County, IL went without power for an average of 1.2 hours, a total of 97K customer-hours (Illinois average 4.0 hours). That ranks 92nd worst of 102 Illinois counties and 2586th 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 DeKalb 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 | February 22, 2023 20:15 | February 25, 2023 20:00 | 2d 23h | 2,900 | 33K |
| 2 | April 1, 2023 01:15 | April 2, 2023 22:00 | 1d 20h | 2,787 | 22K |
| 3 | July 29, 2023 03:45 | July 30, 2023 01:00 | 21h 15m | 1,672 | 10K |
| 4 | April 24, 2023 21:45 | April 25, 2023 05:00 | 7h 15m | 1,426 | 2,808 |
| 5 | April 20, 2023 22:45 | April 21, 2023 05:45 | 7h | 1,043 | 1,686 |
| 6 | April 4, 2023 02:45 | April 4, 2023 05:00 | 2h 15m | 780 | 1,698 |
| 7 | October 26, 2023 21:00 | October 26, 2023 23:30 | 2h 30m | 684 | 342 |
| 8 | May 8, 2023 02:30 | May 8, 2023 16:30 | 14h | 543 | 1,487 |
| 9 | August 23, 2023 04:45 | August 23, 2023 05:45 | 1h | 536 | 536 |
| 10 | December 30, 2023 21:30 | December 30, 2023 23:00 | 1h 30m | 526 | 789 |
Outage episodes by size in 2023: 39 reached 100+ customers, 5 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 DeKalb 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 |
|---|---|---|---|---|---|
| Commonwealth Edison Co | 2023 | 1.6 hrs | 0.61 | 35 min | 0.48 |
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 ÷ 79,682 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. DeKalb County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), DeKalb 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/dekalb-county