County annual report · FIPS 22109
2025 Terrebonne Parish, LA Power Outage Report
In 2025, customers in Terrebonne Parish, LA went without power for an average of 2.4 hours, a total of 99K customer-hours (Louisiana average 6.2 hours). That ranks 60th worst of 64 Louisiana counties and 2254th of 3,000 nationally.
Compared with LA, the US and 2024
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in Terrebonne Parish, 2025
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 2, 2025 16:15 | April 3, 2025 09:15 | 17h | 3,774 | 3,378 |
| 2 | June 10, 2025 12:45 | June 11, 2025 03:15 | 14h 30m | 3,691 | 1,600 |
| 3 | December 14, 2025 05:30 | December 14, 2025 12:15 | 6h 45m | 3,215 | 950 |
| 4 | November 25, 2025 14:00 | November 25, 2025 17:45 | 3h 45m | 1,934 | 823 |
| 5 | December 4, 2025 15:00 | December 4, 2025 21:30 | 6h 30m | 1,872 | 1,592 |
| 6 | December 15, 2025 11:30 | December 15, 2025 19:45 | 8h 15m | 1,867 | 5,124 |
| 7 | September 25, 2025 01:00 | September 25, 2025 03:30 | 2h 30m | 1,848 | 2,040 |
| 8 | November 24, 2025 14:30 | November 24, 2025 16:15 | 1h 45m | 1,832 | 459 |
| 9 | June 11, 2025 18:00 | June 12, 2025 03:15 | 9h 15m | 1,419 | 476 |
| 10 | December 25, 2025 17:00 | December 25, 2025 18:15 | 1h 15m | 1,233 | 1,234 |
Outage episodes by size in 2025: 68 reached 100+ customers, 16 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 2025, 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 | 2024 | 10.2 hrs | 2.04 | 3.6 hrs | 1.55 |
| 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 2025; 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, 2025, 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/2025/louisiana/terrebonne-parish