County annual report · FIPS 22055
2018 Lafayette Parish, LA Power Outage Report
In 2018, customers in Lafayette Parish, LA went without power for an average of 0.9 hours, a total of 120K customer-hours (Louisiana average 5.1 hours). That ranks 64th worst of 64 Louisiana counties and 2357th 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 Lafayette 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 | December 28, 2018 21:00 | December 28, 2018 22:45 | 1h 45m | 12,638 | 3,161 |
| 2 | October 1, 2018 08:15 | October 1, 2018 09:45 | 1h 30m | 9,710 | 3,313 |
| 3 | April 14, 2018 11:30 | April 15, 2018 00:00 | 12h 30m | 3,879 | 10K |
| 4 | June 4, 2018 22:00 | June 5, 2018 08:30 | 10h 30m | 3,401 | 7,083 |
| 5 | February 20, 2018 16:30 | February 20, 2018 21:45 | 5h 15m | 2,981 | 12K |
| 6 | March 29, 2018 04:15 | March 29, 2018 09:30 | 5h 15m | 2,276 | 3,588 |
| 7 | November 1, 2018 06:15 | November 2, 2018 02:30 | 20h 15m | 1,888 | 5,885 |
| 8 | March 29, 2018 10:45 | March 29, 2018 22:45 | 12h | 1,832 | 4,657 |
| 9 | December 27, 2018 13:45 | December 27, 2018 20:45 | 7h | 1,745 | 1,319 |
| 10 | November 9, 2018 20:30 | November 10, 2018 01:15 | 4h 45m | 1,506 | 411 |
Outage episodes by size in 2018: 100 reached 100+ customers, 19 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 Lafayette 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 |
| City of Lafayette - (LA) | 2018 | 32 min | 0.71 | 17 min | 0.49 |
| Southwest Louisiana E M C | - | - | - | - | - |
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 ÷ 137,688 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. Lafayette Parish has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lafayette 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/lafayette-parish