County annual report · FIPS 22109
2023 Terrebonne Parish, LA Power Outage Report
In 2023, customers in Terrebonne Parish, LA went without power for an average of 3.1 hours, a total of 126K customer-hours (Louisiana average 12.8 hours). That ranks 58th worst of 64 Louisiana counties and 1918th of 2,977 nationally.
Compared with LA, the US and 2022
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in Terrebonne Parish, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 7, 2023 21:45 | September 9, 2023 23:00 | 2d 1h | 6,062 | 26K |
| 2 | April 16, 2023 07:15 | April 17, 2023 06:30 | 23h 15m | 4,979 | 22K |
| 3 | November 29, 2023 03:45 | November 29, 2023 04:00 | 15m | 4,435 | 1,109 |
| 4 | June 8, 2023 18:00 | June 8, 2023 23:45 | 5h 45m | 2,255 | 1,768 |
| 5 | March 17, 2023 15:45 | March 18, 2023 02:45 | 11h | 2,179 | 1,769 |
| 6 | March 18, 2023 05:30 | March 18, 2023 05:45 | 15m | 2,146 | 537 |
| 7 | September 23, 2023 21:15 | September 23, 2023 23:15 | 2h | 2,071 | 2,076 |
| 8 | June 22, 2023 18:45 | June 23, 2023 00:45 | 6h | 1,731 | 933 |
| 9 | November 10, 2023 04:45 | November 11, 2023 22:15 | 1d 17h | 1,349 | 5,070 |
| 10 | April 25, 2023 12:00 | April 26, 2023 17:30 | 1d 5h | 1,319 | 1,267 |
Outage episodes by size in 2023: 51 reached 100+ customers, 12 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 Terrebonne Parish reported on EIA Form 861 for 2023, 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 | 2023 | 3.8 hrs | 1.39 | 3.0 hrs | 1.26 |
| South Louisiana Elec Coop Assn | - | - | - | - | - |
| Terrebonne Parish Consol Gov't | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Louisiana's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 40,577 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. Terrebonne Parish has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Terrebonne Parish, LA annual power outage report, 2023, 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/2023/louisiana/terrebonne-parish