County annual report · FIPS 22007
2018 Assumption Parish, LA Power Outage Report
In 2018, customers in Assumption Parish, LA went without power for an average of 9.0 hours, a total of 60K customer-hours (Louisiana average 5.1 hours). That ranks 16th worst of 64 Louisiana counties and 629th of 2,798 nationally.
Compared with LA, the US and 2017
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in Assumption Parish, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 10, 2018 22:45 | September 10, 2018 23:00 | 15m | 3,429 | 857 |
| 2 | December 7, 2018 13:30 | December 7, 2018 13:45 | 15m | 3,420 | 855 |
| 3 | July 9, 2018 19:30 | July 9, 2018 23:15 | 3h 45m | 3,382 | 5,813 |
| 4 | July 22, 2018 07:15 | July 22, 2018 14:15 | 7h | 3,365 | 858 |
| 5 | March 22, 2018 07:00 | March 22, 2018 08:00 | 1h | 3,346 | 2,525 |
| 6 | August 23, 2018 18:15 | August 23, 2018 18:45 | 30m | 3,268 | 818 |
| 7 | August 30, 2018 17:00 | August 30, 2018 20:00 | 3h | 1,731 | 471 |
| 8 | February 15, 2018 15:00 | February 15, 2018 20:45 | 5h 45m | 1,573 | 3,910 |
| 9 | February 21, 2018 19:15 | February 21, 2018 20:45 | 1h 30m | 1,527 | 2,291 |
| 10 | January 16, 2018 21:15 | January 16, 2018 23:15 | 2h | 1,375 | 2,739 |
Outage episodes by size in 2018: 31 reached 100+ customers, 13 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 Assumption Parish reported on EIA Form 861 for 2018, 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 |
| Cleco Power LLC | - | - | - | - | - |
| South Louisiana Elec Coop Assn | - | - | - | - | - |
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 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 6,738 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. Assumption Parish has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Assumption Parish, LA annual power outage report, 2018, 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/2018/louisiana/assumption-parish