County annual report · FIPS 22055
2020 Lafayette Parish, LA Power Outage Report
In 2020, customers in Lafayette Parish, LA went without power for an average of 21.7 hours, a total of 3.0M customer-hours (Louisiana average 72.6 hours). That ranks 47th worst of 64 Louisiana counties and 396th of 3,019 nationally.
Compared with LA, the US and 2019
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in Lafayette Parish, 2020
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 9, 2020 16:30 | October 17, 2020 22:45 | 8d 6h | 50,670 | 2.2M |
| 2 | August 27, 2020 02:45 | August 31, 2020 01:45 | 3d 23h | 42,398 | 600K |
| 3 | January 11, 2020 05:30 | January 12, 2020 01:00 | 19h 30m | 7,691 | 27K |
| 4 | April 29, 2020 09:45 | April 29, 2020 21:30 | 11h 45m | 5,905 | 22K |
| 5 | August 16, 2020 00:15 | August 16, 2020 07:45 | 7h 30m | 2,892 | 2,259 |
| 6 | June 4, 2020 13:30 | June 4, 2020 20:00 | 6h 30m | 2,461 | 2,607 |
| 7 | February 20, 2020 12:45 | February 20, 2020 14:00 | 1h 15m | 2,456 | 1,844 |
| 8 | September 12, 2020 18:45 | September 13, 2020 02:30 | 7h 45m | 2,238 | 2,886 |
| 9 | June 24, 2020 18:15 | June 24, 2020 20:15 | 2h | 2,213 | 1,928 |
| 10 | May 28, 2020 01:00 | May 28, 2020 03:30 | 2h 30m | 2,070 | 4,646 |
Outage episodes by size in 2020: 101 reached 100+ customers, 30 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 Lafayette Parish reported on EIA Form 861 for 2020, 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 | 2020 | 93.2 hrs | 3.32 | 3.5 hrs | 1.44 |
| City of Lafayette - (LA) | 2020 | 17.6 hrs | 1.83 | 27 min | 0.65 |
| 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 2020; 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, 2020, 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/2020/louisiana/lafayette-parish