County annual report · FIPS 01117
2018 Shelby County, AL Power Outage Report
In 2018, customers in Shelby County, AL went without power for an average of 5.0 hours, a total of 559K customer-hours (Alabama average 4.9 hours). That ranks 34th worst of 65 Alabama counties and 1047th of 2,798 nationally.
Compared with AL, the US and 2017
Coverage line is EAGLE-I's share of Alabama customers tracked each year.
Biggest outages in Shelby 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 | June 27, 2018 13:45 | July 4, 2018 10:00 | 6d 20h | 17,930 | 203K |
| 2 | May 28, 2018 11:15 | May 31, 2018 11:00 | 2d 23h | 10,544 | 73K |
| 3 | June 22, 2018 07:15 | June 24, 2018 00:30 | 1d 17h | 6,439 | 4,571 |
| 4 | December 8, 2018 04:00 | December 12, 2018 05:45 | 4d 1h | 6,340 | 38K |
| 5 | September 24, 2018 13:30 | September 28, 2018 20:15 | 4d 6h | 4,409 | 9,010 |
| 6 | October 16, 2018 07:00 | October 16, 2018 19:45 | 12h 45m | 3,601 | 4,966 |
| 7 | October 23, 2018 13:30 | October 24, 2018 00:45 | 11h 15m | 2,974 | 889 |
| 8 | June 25, 2018 00:30 | June 27, 2018 04:45 | 2d 4h | 2,688 | 5,293 |
| 9 | November 6, 2018 05:00 | November 6, 2018 23:30 | 18h 30m | 2,424 | 8,228 |
| 10 | May 25, 2018 10:30 | May 27, 2018 03:15 | 1d 16h | 2,252 | 5,321 |
Outage episodes by size in 2018: 132 reached 100+ customers, 28 reached 1,000+ customers, 2 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 Shelby 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 |
|---|---|---|---|---|---|
| Coosa Valley Electric Coop Inc | 2018 | 3.9 hrs | 1.76 | 1.8 hrs | 1.01 |
| Alabama Power Co | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 79% of Alabama's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 111,917 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. Shelby County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Shelby County, AL 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/alabama/shelby-county