County annual report · FIPS 22051
2021 Jefferson Parish, LA Power Outage Report
In 2021, customers in Jefferson Parish, LA went without power for an average of 211.8 hours, a total of 48.9M customer-hours (Louisiana average 99.7 hours). That ranks 11th worst of 64 Louisiana counties and 24th 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 Jefferson 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 19:00 | October 21, 2021 02:00 | 53d 7h | 204,888 | 47.5M |
| 2 | October 21, 2021 05:16 | December 31, 2021 00:15 | 70d 18h | 23,566 | 733K |
| 3 | May 4, 2021 13:15 | May 7, 2021 04:30 | 2d 15h | 11,188 | 29K |
| 4 | April 12, 2021 14:15 | April 13, 2021 21:30 | 1d 7h | 10,773 | 25K |
| 5 | January 26, 2021 13:15 | January 27, 2021 09:30 | 20h 15m | 8,474 | 9,590 |
| 6 | August 16, 2021 07:30 | August 17, 2021 07:30 | 1d | 8,209 | 24K |
| 7 | February 13, 2021 13:30 | February 19, 2021 22:15 | 6d 8h | 6,943 | 61K |
| 8 | May 3, 2021 11:45 | May 4, 2021 06:15 | 18h 30m | 5,868 | 25K |
| 9 | May 11, 2021 09:45 | May 15, 2021 07:15 | 3d 21h | 5,057 | 37K |
| 10 | June 13, 2021 17:00 | June 14, 2021 21:45 | 1d 4h | 4,144 | 43K |
Outage episodes by size in 2021: 131 reached 100+ customers, 58 reached 1,000+ customers, 4 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 Jefferson 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 |
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 ÷ 230,746 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. Jefferson Parish has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson 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/jefferson-parish