County annual report · FIPS 22101
2019 St. Mary Parish, LA Power Outage Report
In 2019, customers in St. Mary Parish, LA went without power for an average of 33.2 hours, a total of 919K customer-hours (Louisiana average 10.2 hours). That ranks 7th worst of 64 Louisiana counties and 98th of 2,945 nationally.
Compared with LA, the US and 2018
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in St. Mary Parish, 2019
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 12, 2019 21:15 | July 18, 2019 20:15 | 5d 23h | 17,613 | 827K |
| 2 | March 11, 2019 14:30 | April 7, 2019 10:00 | 26d 19h | 2,084 | 18K |
| 3 | October 12, 2019 00:30 | October 12, 2019 19:45 | 19h 15m | 1,276 | 3,573 |
| 4 | May 19, 2019 14:15 | May 22, 2019 13:00 | 2d 22h | 939 | 1,771 |
| 5 | April 7, 2019 11:45 | May 1, 2019 17:30 | 24d 5h | 859 | 17K |
| 6 | March 9, 2019 18:00 | March 9, 2019 21:15 | 3h 15m | 783 | 1,377 |
| 7 | July 18, 2019 21:30 | July 27, 2019 18:15 | 8d 20h | 775 | 4,256 |
| 8 | December 11, 2019 19:15 | December 11, 2019 19:45 | 30m | 698 | 349 |
| 9 | June 6, 2019 01:45 | June 6, 2019 18:15 | 16h 30m | 626 | 3,656 |
| 10 | January 12, 2019 16:45 | January 16, 2019 22:00 | 4d 5h | 602 | 3,690 |
Outage episodes by size in 2019: 40 reached 100+ customers, 3 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. Mary Parish reported on EIA Form 861 for 2019, 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 89% of Louisiana's customers in 2019; 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, 2019, 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/2019/louisiana/st-mary-parish