County annual report · FIPS 22103
2022 St. Tammany Parish, LA Power Outage Report
In 2022, customers in St. Tammany Parish, LA went without power for an average of 2.4 hours, a total of 388K customer-hours (Louisiana average 6.9 hours). That ranks 61st worst of 64 Louisiana counties and 2160th of 2,976 nationally.
Compared with LA, the US and 2021
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in St. Tammany Parish, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 15, 2022 22:00 | May 20, 2022 23:00 | 5d 1h | 6,642 | 9,496 |
| 2 | April 14, 2022 03:30 | April 15, 2022 01:30 | 22h | 5,701 | 13K |
| 3 | July 16, 2022 16:45 | July 19, 2022 00:45 | 2d 8h | 5,067 | 15K |
| 4 | February 16, 2022 16:00 | April 1, 2022 03:30 | 43d 11h | 4,652 | 47K |
| 5 | September 7, 2022 14:15 | September 18, 2022 03:45 | 10d 13h | 4,299 | 13K |
| 6 | December 7, 2022 14:30 | December 8, 2022 01:15 | 10h 45m | 4,237 | 5,360 |
| 7 | April 28, 2022 03:45 | April 28, 2022 09:15 | 5h 30m | 3,970 | 7,837 |
| 8 | June 7, 2022 18:15 | July 2, 2022 02:30 | 24d 8h | 3,749 | 43K |
| 9 | November 30, 2022 08:45 | December 1, 2022 00:30 | 15h 45m | 3,538 | 13K |
| 10 | April 30, 2022 22:30 | May 1, 2022 08:45 | 10h 15m | 3,370 | 3,668 |
Outage episodes by size in 2022: 145 reached 100+ customers, 31 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 St. Tammany Parish reported on EIA Form 861 for 2022, 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 |
|---|---|---|---|---|---|
| Entergy Louisiana LLC | 2022 | 4.5 hrs | 1.75 | 3.9 hrs | 1.66 |
| Washington-St Tammany E C, Inc | 2022 | 5.6 hrs | 3.43 | 5.4 hrs | 3.30 |
| Cleco Power LLC | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of Louisiana's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 164,188 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. Tammany Parish has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), St. Tammany Parish, LA annual power outage report, 2022, 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/2022/louisiana/st-tammany-parish