County annual report · FIPS 22055
2021 Lafayette Parish, LA Power Outage Report
In 2021, customers in Lafayette Parish, LA went without power for an average of 1.3 hours, a total of 175K customer-hours (Louisiana average 99.7 hours). That ranks 64th worst of 64 Louisiana counties and 2561st 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 Lafayette 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 | April 24, 2021 05:45 | April 25, 2021 04:00 | 22h 15m | 5,395 | 9,816 |
| 2 | December 18, 2021 21:30 | December 19, 2021 03:45 | 6h 15m | 5,134 | 5,122 |
| 3 | April 20, 2021 12:45 | April 20, 2021 18:45 | 6h | 4,968 | 5,143 |
| 4 | May 11, 2021 13:45 | May 11, 2021 19:15 | 5h 30m | 2,858 | 1,880 |
| 5 | February 15, 2021 05:30 | February 17, 2021 13:30 | 2d 8h | 2,386 | 11K |
| 6 | May 17, 2021 20:00 | May 18, 2021 19:45 | 23h 45m | 1,947 | 8,442 |
| 7 | May 2, 2021 13:00 | May 2, 2021 15:45 | 2h 45m | 1,915 | 1,612 |
| 8 | November 3, 2021 13:15 | November 3, 2021 16:00 | 2h 45m | 1,876 | 1,100 |
| 9 | October 28, 2021 12:45 | October 28, 2021 23:00 | 10h 15m | 1,719 | 2,120 |
| 10 | July 21, 2021 17:15 | July 21, 2021 21:15 | 4h | 1,680 | 2,286 |
Outage episodes by size in 2021: 131 reached 100+ customers, 29 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 Lafayette 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 |
| City of Lafayette - (LA) | 2021 | 37 min | 0.86 | 21 min | 0.66 |
| 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 90% of Louisiana's customers in 2021; 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, 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/lafayette-parish