County annual report · FIPS 22101
2023 St. Mary Parish, LA Power Outage Report
In 2023, customers in St. Mary Parish, LA went without power for an average of 3.1 hours, a total of 87K customer-hours (Louisiana average 12.8 hours). That ranks 57th worst of 64 Louisiana counties and 1911th of 2,977 nationally.
Compared with LA, the US and 2022
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in St. Mary Parish, 2023
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 21, 2023 12:15 | May 21, 2023 15:15 | 3h | 4,316 | 8,637 |
| 2 | March 28, 2023 11:30 | March 29, 2023 16:45 | 1d 5h | 3,227 | 5,641 |
| 3 | April 16, 2023 06:45 | April 17, 2023 19:30 | 1d 12h | 3,180 | 11K |
| 4 | May 15, 2023 20:30 | May 16, 2023 14:45 | 18h 15m | 1,976 | 4,654 |
| 5 | June 6, 2023 20:45 | June 6, 2023 23:15 | 2h 30m | 1,731 | 2,602 |
| 6 | May 14, 2023 06:15 | May 14, 2023 07:30 | 1h 15m | 1,287 | 1,418 |
| 7 | August 15, 2023 14:00 | August 15, 2023 23:45 | 9h 45m | 1,135 | 1,046 |
| 8 | October 1, 2023 21:15 | October 2, 2023 13:00 | 15h 45m | 1,113 | 1,128 |
| 9 | January 24, 2023 23:30 | January 25, 2023 17:00 | 17h 30m | 985 | 1,743 |
| 10 | January 10, 2023 13:15 | January 10, 2023 16:30 | 3h 15m | 859 | 685 |
Outage episodes by size in 2023: 57 reached 100+ customers, 8 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. Mary Parish reported on EIA Form 861 for 2023, 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 |
|---|---|---|---|---|---|
| Cleco Power LLC | - | - | - | - | - |
| Colquitt Electric Membership Corp | - | - | - | - | - |
| South Louisiana Elec Coop Assn | - | - | - | - | - |
| Morgan City - (LA) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Louisiana's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 27,709 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. Mary Parish has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), St. Mary Parish, LA annual power outage report, 2023, 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/2023/louisiana/st-mary-parish