County annual report · FIPS 01115
2018 St. Clair County, AL Power Outage Report
In 2018, customers in St. Clair County, AL went without power for an average of 7.3 hours, a total of 303K customer-hours (Alabama average 4.9 hours). That ranks 20th worst of 65 Alabama counties and 743rd 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 St. Clair 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 | September 24, 2018 15:00 | September 25, 2018 14:45 | 23h 45m | 13,900 | 21K |
| 2 | June 27, 2018 14:30 | July 1, 2018 00:30 | 3d 10h | 7,612 | 72K |
| 3 | March 26, 2018 13:30 | March 26, 2018 22:45 | 9h 15m | 3,727 | 2,221 |
| 4 | December 8, 2018 13:00 | December 11, 2018 11:30 | 2d 22h | 2,038 | 31K |
| 5 | September 26, 2018 12:30 | September 28, 2018 20:15 | 2d 7h | 1,997 | 4,286 |
| 6 | March 19, 2018 21:45 | March 23, 2018 01:30 | 3d 3h | 1,791 | 36K |
| 7 | March 11, 2018 07:30 | March 11, 2018 17:15 | 9h 45m | 1,646 | 2,971 |
| 8 | January 1, 2018 12:30 | January 1, 2018 19:45 | 7h 15m | 1,453 | 903 |
| 9 | July 4, 2018 07:15 | July 4, 2018 23:45 | 16h 30m | 1,451 | 6,096 |
| 10 | April 14, 2018 21:45 | April 15, 2018 08:30 | 10h 45m | 1,277 | 2,172 |
Outage episodes by size in 2018: 121 reached 100+ customers, 15 reached 1,000+ customers, 1 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 St. Clair 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 ÷ 41,320 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. St. Clair County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), St. Clair 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/st-clair-county