County annual report · FIPS 22109
2015 Terrebonne Parish, LA Power Outage Report
In 2015, customers in Terrebonne Parish, LA went without power for an average of 3.6 hours, a total of 145K customer-hours (Louisiana average 5.8 hours). That ranks 49th worst of 64 Louisiana counties and 787th of 2,484 nationally.
Compared with LA, the US
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in Terrebonne Parish, 2015
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 27, 2015 11:45 | April 29, 2015 23:15 | 2d 11h | 5,497 | 16K |
| 2 | October 25, 2015 21:00 | October 27, 2015 04:30 | 1d 7h | 3,845 | 34K |
| 3 | August 10, 2015 18:45 | August 10, 2015 22:00 | 3h 15m | 3,703 | 5,597 |
| 4 | September 9, 2015 18:15 | September 9, 2015 18:30 | 15m | 3,589 | 897 |
| 5 | May 28, 2015 20:00 | May 28, 2015 22:00 | 2h | 3,095 | 4,801 |
| 6 | July 30, 2015 22:00 | July 31, 2015 03:30 | 5h 30m | 2,687 | 3,225 |
| 7 | April 25, 2015 18:30 | April 25, 2015 22:30 | 4h | 2,269 | 2,860 |
| 8 | June 2, 2015 08:00 | June 2, 2015 08:30 | 30m | 2,268 | 571 |
| 9 | August 19, 2015 00:30 | August 19, 2015 05:30 | 5h | 2,253 | 5,423 |
| 10 | May 25, 2015 03:15 | May 25, 2015 04:45 | 1h 30m | 2,105 | 3,158 |
Outage episodes by size in 2015: 73 reached 100+ customers, 29 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 2015, 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 | 2015 | 6.2 hrs | 2.08 | 2.9 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 n/a of Louisiana's customers in 2015; 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, 2015, 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/2015/louisiana/terrebonne-parish