County annual report · FIPS 22051
2018 Jefferson Parish, LA Power Outage Report
In 2018, customers in Jefferson Parish, LA went without power for an average of 3.0 hours, a total of 684K customer-hours (Louisiana average 5.1 hours). That ranks 56th worst of 64 Louisiana counties and 1523rd of 2,798 nationally.
Compared with LA, the US and 2017
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in Jefferson Parish, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 18, 2018 21:45 | October 19, 2018 04:15 | 6h 30m | 12,553 | 22K |
| 2 | June 29, 2018 11:45 | July 12, 2018 20:30 | 13d 8h | 10,766 | 60K |
| 3 | March 22, 2018 15:45 | March 24, 2018 03:30 | 1d 11h | 10,476 | 4,914 |
| 4 | May 18, 2018 11:30 | May 20, 2018 05:15 | 1d 17h | 9,148 | 24K |
| 5 | March 6, 2018 12:15 | March 7, 2018 05:30 | 17h 15m | 8,363 | 18K |
| 6 | April 13, 2018 23:00 | April 15, 2018 07:00 | 1d 8h | 6,503 | 14K |
| 7 | January 12, 2018 23:45 | January 13, 2018 06:00 | 6h 15m | 6,302 | 4,865 |
| 8 | December 1, 2018 05:45 | December 1, 2018 10:45 | 5h | 5,258 | 4,361 |
| 9 | August 6, 2018 11:30 | August 7, 2018 09:45 | 22h 15m | 5,035 | 16K |
| 10 | February 13, 2018 23:45 | February 14, 2018 05:15 | 5h 30m | 4,926 | 7,655 |
Outage episodes by size in 2018: 233 reached 100+ customers, 67 reached 1,000+ customers, 3 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 2018, 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 | 2018 | 4.6 hrs | 1.84 | 3.5 hrs | 1.63 |
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 2018; 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, 2018, 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/2018/louisiana/jefferson-parish