County annual report · FIPS 22109
2017 Terrebonne Parish, LA Power Outage Report
In 2017, customers in Terrebonne Parish, LA went without power for an average of 6.0 hours, a total of 245K customer-hours (Louisiana average 7.2 hours). That ranks 38th worst of 64 Louisiana counties and 853rd of 2,786 nationally.
Compared with LA, the US and 2016
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in Terrebonne Parish, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 12, 2017 14:15 | December 12, 2017 21:00 | 6h 45m | 12,450 | 24K |
| 2 | December 12, 2017 06:30 | December 12, 2017 10:45 | 4h 15m | 9,725 | 36K |
| 3 | October 22, 2017 17:00 | October 23, 2017 09:30 | 16h 30m | 7,720 | 17K |
| 4 | May 3, 2017 18:30 | May 6, 2017 00:00 | 2d 5h | 5,888 | 60K |
| 5 | January 5, 2017 14:15 | January 5, 2017 15:30 | 1h 15m | 3,599 | 2,740 |
| 6 | July 2, 2017 22:00 | July 3, 2017 06:30 | 8h 30m | 3,577 | 2,463 |
| 7 | December 6, 2017 01:00 | December 6, 2017 07:00 | 6h | 2,864 | 5,486 |
| 8 | April 30, 2017 06:15 | May 1, 2017 20:30 | 1d 14h | 2,115 | 17K |
| 9 | October 29, 2017 08:00 | October 29, 2017 15:00 | 7h | 2,114 | 7,459 |
| 10 | January 12, 2017 05:45 | January 12, 2017 08:45 | 3h | 1,917 | 5,740 |
Outage episodes by size in 2017: 61 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 2017, 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 | 2017 | 6.5 hrs | 2.10 | 2.9 hrs | 1.48 |
| 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 2017; 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, 2017, 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/2017/louisiana/terrebonne-parish