County annual report · FIPS 22109
2019 Terrebonne Parish, LA Power Outage Report
In 2019, customers in Terrebonne Parish, LA went without power for an average of 26.8 hours, a total of 1.1M customer-hours (Louisiana average 10.2 hours). That ranks 10th worst of 64 Louisiana counties and 139th of 2,945 nationally.
Compared with LA, the US and 2018
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in Terrebonne Parish, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 12, 2019 13:15 | July 30, 2019 14:30 | 18d 1h | 25,602 | 861K |
| 2 | January 29, 2019 05:30 | January 29, 2019 08:00 | 2h 30m | 4,295 | 9,260 |
| 3 | October 26, 2019 06:30 | October 29, 2019 23:00 | 3d 16h | 3,695 | 45K |
| 4 | June 27, 2019 13:30 | June 28, 2019 20:30 | 1d 7h | 2,437 | 14K |
| 5 | March 5, 2019 22:45 | March 6, 2019 00:15 | 1h 30m | 2,413 | 3,019 |
| 6 | August 8, 2019 13:15 | August 8, 2019 16:15 | 3h | 2,360 | 676 |
| 7 | April 8, 2019 00:30 | April 9, 2019 06:15 | 1d 5h | 2,237 | 17K |
| 8 | November 15, 2019 14:45 | November 15, 2019 17:30 | 2h 45m | 2,088 | 2,618 |
| 9 | September 1, 2019 16:15 | September 14, 2019 00:45 | 12d 8h | 2,084 | 9,314 |
| 10 | July 30, 2019 16:30 | July 30, 2019 22:30 | 6h | 1,910 | 3,916 |
Outage episodes by size in 2019: 64 reached 100+ customers, 23 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 Terrebonne Parish reported on EIA Form 861 for 2019, 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 |
| 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 89% of Louisiana's customers in 2019; 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, 2019, 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/2019/louisiana/terrebonne-parish