County annual report · FIPS 01115
2021 St. Clair County, AL Power Outage Report
In 2021, customers in St. Clair County, AL went without power for an average of 7.9 hours, a total of 325K customer-hours (Alabama average 4.6 hours). That ranks 21st worst of 65 Alabama counties and 952nd of 2,974 nationally.
Compared with AL, the US and 2020
Coverage line is EAGLE-I's share of Alabama customers tracked each year.
Biggest outages in St. Clair 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 | February 6, 2021 19:45 | February 6, 2021 21:30 | 1h 45m | 14,017 | 3,671 |
| 2 | February 4, 2021 13:45 | February 5, 2021 13:45 | 1d | 7,569 | 2,124 |
| 3 | March 25, 2021 15:00 | March 28, 2021 06:00 | 2d 15h | 6,103 | 63K |
| 4 | April 24, 2021 22:30 | April 26, 2021 01:00 | 1d 2h | 3,197 | 39K |
| 5 | June 19, 2021 15:45 | June 21, 2021 12:15 | 1d 20h | 2,263 | 13K |
| 6 | July 20, 2021 22:15 | July 21, 2021 05:30 | 7h 15m | 1,793 | 6,592 |
| 7 | June 8, 2021 00:45 | June 8, 2021 20:00 | 19h 15m | 1,767 | 9,732 |
| 8 | September 27, 2021 21:45 | September 27, 2021 22:00 | 15m | 1,745 | 436 |
| 9 | September 27, 2021 15:15 | September 27, 2021 20:30 | 5h 15m | 1,741 | 457 |
| 10 | September 28, 2021 13:00 | September 28, 2021 13:15 | 15m | 1,741 | 435 |
Outage episodes by size in 2021: 133 reached 100+ customers, 23 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 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 |
|---|---|---|---|---|---|
| Coosa Valley Electric Coop Inc | 2021 | 5.1 hrs | 1.95 | 2.2 hrs | 1.58 |
| 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 81% of Alabama's customers in 2021; 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, 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/alabama/st-clair-county