County annual report · FIPS 17161
2021 Rock Island County, IL Power Outage Report
In 2021, customers in Rock Island County, IL went without power for an average of 1.8 hours, a total of 154K customer-hours (Illinois average 2.3 hours). That ranks 76th worst of 102 Illinois counties and 2301st 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 Rock Island 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 | August 11, 2021 12:15 | August 12, 2021 17:45 | 1d 5h | 7,764 | 21K |
| 2 | December 16, 2021 01:45 | December 17, 2021 03:00 | 1d 1h | 4,971 | 13K |
| 3 | September 1, 2021 12:30 | September 2, 2021 01:15 | 12h 45m | 4,062 | 2,240 |
| 4 | March 18, 2021 10:00 | March 19, 2021 00:30 | 14h 30m | 3,635 | 7,573 |
| 5 | October 16, 2021 22:00 | October 17, 2021 05:00 | 7h | 3,157 | 2,811 |
| 6 | October 24, 2021 22:00 | October 25, 2021 17:00 | 19h | 2,949 | 14K |
| 7 | September 20, 2021 22:30 | September 21, 2021 17:00 | 18h 30m | 2,515 | 6,277 |
| 8 | June 21, 2021 03:00 | June 21, 2021 06:15 | 3h 15m | 2,421 | 2,587 |
| 9 | January 4, 2021 04:45 | January 5, 2021 05:30 | 1d | 2,354 | 5,649 |
| 10 | April 7, 2021 18:30 | April 7, 2021 21:30 | 3h | 2,068 | 2,623 |
Outage episodes by size in 2021: 90 reached 100+ customers, 20 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 Rock Island 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 |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2021 | 1.9 hrs | 1.04 | 75 min | 0.74 |
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 ÷ 83,685 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. Rock Island County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Rock Island 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/rock-island-county