County annual report · FIPS 22057
2021 Lafourche Parish, LA Power Outage Report
In 2021, customers in Lafourche Parish, LA went without power for an average of 555.6 hours, a total of 19.8M customer-hours (Louisiana average 99.7 hours). That ranks 2nd worst of 64 Louisiana counties and 9th of 2,974 nationally.
Compared with LA, the US and 2020
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in Lafourche Parish, 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 | August 28, 2021 17:15 | October 21, 2021 02:00 | 53d 8h | 44,233 | 19.4M |
| 2 | October 21, 2021 05:16 | December 31, 2021 00:15 | 70d 18h | 11,248 | 273K |
| 3 | July 18, 2021 18:30 | July 19, 2021 00:15 | 5h 45m | 9,444 | 20K |
| 4 | May 12, 2021 06:00 | May 13, 2021 19:30 | 1d 13h | 5,000 | 11K |
| 5 | January 25, 2021 13:30 | January 25, 2021 23:30 | 10h | 4,633 | 1,173 |
| 6 | July 26, 2021 00:45 | July 26, 2021 07:00 | 6h 15m | 3,995 | 2,590 |
| 7 | April 12, 2021 10:45 | April 12, 2021 14:30 | 3h 45m | 3,977 | 4,973 |
| 8 | February 18, 2021 22:00 | March 21, 2021 11:15 | 30d 13h | 3,594 | 9,255 |
| 9 | April 13, 2021 16:30 | April 13, 2021 21:30 | 5h | 3,526 | 3,518 |
| 10 | July 31, 2021 13:00 | August 1, 2021 07:30 | 18h 30m | 3,048 | 2,895 |
Outage episodes by size in 2021: 82 reached 100+ customers, 26 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 Lafourche Parish 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 |
|---|---|---|---|---|---|
| Entergy Louisiana LLC | 2021 | 111.5 hrs | 3.16 | 4.1 hrs | 1.62 |
| South Louisiana Elec Coop Assn | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 90% of Louisiana's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 35,705 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. Lafourche Parish has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lafourche Parish, LA 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2021/louisiana/lafourche-parish