County annual report · FIPS 01089
2021 Madison County, AL Power Outage Report
In 2021, customers in Madison County, AL went without power for an average of 1.4 hours, a total of 276K customer-hours (Alabama average 4.6 hours). That ranks 54th worst of 65 Alabama counties and 2511th 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 Madison 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 | July 11, 2021 20:00 | July 12, 2021 22:00 | 1d 2h | 32,123 | 52K |
| 2 | February 20, 2021 08:15 | February 20, 2021 22:45 | 14h 30m | 19,947 | 57K |
| 3 | August 4, 2021 19:30 | August 4, 2021 20:15 | 45m | 4,227 | 1,057 |
| 4 | March 27, 2021 23:00 | March 29, 2021 17:00 | 1d 18h | 4,072 | 19K |
| 5 | December 11, 2021 11:15 | December 12, 2021 03:30 | 16h 15m | 3,287 | 6,272 |
| 6 | August 24, 2021 21:00 | August 24, 2021 22:45 | 1h 45m | 3,112 | 3,776 |
| 7 | March 2, 2021 14:45 | March 2, 2021 16:00 | 1h 15m | 2,732 | 685 |
| 8 | August 1, 2021 07:00 | August 1, 2021 17:30 | 10h 30m | 2,598 | 663 |
| 9 | May 19, 2021 15:00 | May 20, 2021 03:00 | 12h | 2,572 | 2,613 |
| 10 | August 15, 2021 18:15 | August 17, 2021 01:00 | 1d 6h | 2,354 | 9,029 |
Outage episodes by size in 2021: 68 reached 100+ customers, 34 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 Madison 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 |
|---|---|---|---|---|---|
| City of Huntsville - (AL) | - | - | - | - | - |
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 ÷ 198,793 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. Madison County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Madison 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/). https://massoutage.com/reports/2021/alabama/madison-county