County annual report · FIPS 22101
2017 St. Mary Parish, LA Power Outage Report
In 2017, customers in St. Mary Parish, LA went without power for an average of 3.2 hours, a total of 90K customer-hours (Louisiana average 7.2 hours). That ranks 56th worst of 64 Louisiana counties and 1270th of 2,786 nationally.
Compared with LA, the US and 2016
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in St. Mary Parish, 2017
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 27, 2017 00:45 | July 27, 2017 03:45 | 3h | 7,936 | 4,268 |
| 2 | October 22, 2017 15:30 | October 24, 2017 06:45 | 1d 15h | 5,388 | 13K |
| 3 | June 20, 2017 22:30 | June 21, 2017 01:15 | 2h 45m | 4,481 | 2,632 |
| 4 | July 14, 2017 14:45 | July 14, 2017 16:30 | 1h 45m | 4,155 | 1,058 |
| 5 | December 8, 2017 12:30 | December 9, 2017 08:00 | 19h 30m | 2,501 | 10K |
| 6 | April 29, 2017 16:45 | May 10, 2017 22:30 | 11d 5h | 1,650 | 12K |
| 7 | July 10, 2017 19:15 | July 10, 2017 21:30 | 2h 15m | 1,599 | 2,545 |
| 8 | August 12, 2017 21:00 | August 14, 2017 13:45 | 1d 16h | 1,420 | 2,328 |
| 9 | August 20, 2017 22:15 | August 21, 2017 03:00 | 4h 45m | 1,363 | 2,073 |
| 10 | July 21, 2017 19:00 | July 21, 2017 23:45 | 4h 45m | 1,044 | 1,136 |
Outage episodes by size in 2017: 63 reached 100+ customers, 10 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 2017, 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 2017; 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, 2017, 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/2017/louisiana/st-mary-parish