County annual report · FIPS 22109
2020 Terrebonne Parish, LA Power Outage Report
In 2020, customers in Terrebonne Parish, LA went without power for an average of 38.6 hours, a total of 1.6M customer-hours (Louisiana average 72.6 hours). That ranks 38th worst of 64 Louisiana counties and 211th of 3,019 nationally.
Compared with LA, the US and 2019
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in Terrebonne Parish, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 28, 2020 20:15 | November 14, 2020 23:15 | 17d 3h | 17,885 | 1.3M |
| 2 | December 6, 2020 11:45 | December 6, 2020 19:15 | 7h 30m | 6,415 | 2,418 |
| 3 | June 22, 2020 10:00 | June 27, 2020 18:45 | 5d 8h | 6,356 | 19K |
| 4 | April 29, 2020 01:00 | May 5, 2020 00:00 | 5d 23h | 5,863 | 44K |
| 5 | January 29, 2020 14:15 | January 30, 2020 03:15 | 13h | 5,680 | 9,320 |
| 6 | August 8, 2020 12:45 | August 8, 2020 23:00 | 10h 15m | 4,639 | 1,294 |
| 7 | July 16, 2020 15:00 | July 17, 2020 07:15 | 16h 15m | 4,029 | 9,648 |
| 8 | September 10, 2020 22:30 | September 10, 2020 23:15 | 45m | 3,593 | 1,744 |
| 9 | November 16, 2020 14:15 | November 17, 2020 01:00 | 10h 45m | 2,774 | 1,444 |
| 10 | August 9, 2020 19:30 | August 10, 2020 01:15 | 5h 45m | 2,184 | 2,334 |
Outage episodes by size in 2020: 76 reached 100+ customers, 36 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 2020, 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 | 2020 | 93.2 hrs | 3.32 | 3.5 hrs | 1.44 |
| 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 90% of Louisiana's customers in 2020; 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, 2020, 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/2020/louisiana/terrebonne-parish