County annual report · FIPS 22091
2021 St. Helena Parish, LA Power Outage Report
In 2021, customers in St. Helena Parish, LA went without power for an average of 681.9 hours, a total of 2.8M customer-hours (Louisiana average 99.7 hours). That ranks 1st worst of 64 Louisiana counties and 7th of 2,974 nationally.
Compared with LA, the US and 2020
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in St. Helena Parish, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 29, 2021 15:30 | September 22, 2021 00:30 | 23d 9h | 8,648 | 2.5M |
| 2 | February 15, 2021 08:45 | February 21, 2021 04:00 | 5d 19h | 6,146 | 248K |
| 3 | May 18, 2021 04:30 | May 19, 2021 03:15 | 22h 45m | 2,981 | 24K |
| 4 | April 13, 2021 15:30 | April 14, 2021 21:15 | 1d 5h | 2,042 | 7,307 |
| 5 | March 17, 2021 19:45 | March 18, 2021 23:45 | 1d 4h | 1,433 | 3,096 |
| 6 | May 4, 2021 21:15 | May 5, 2021 06:45 | 9h 30m | 889 | 2,163 |
| 7 | July 11, 2021 15:45 | July 12, 2021 04:30 | 12h 45m | 854 | 887 |
| 8 | December 28, 2021 16:45 | December 28, 2021 19:45 | 3h | 769 | 368 |
| 9 | October 4, 2021 14:30 | October 4, 2021 20:00 | 5h 30m | 695 | 924 |
| 10 | October 4, 2021 21:30 | October 5, 2021 07:30 | 10h | 678 | 1,679 |
Outage episodes by size in 2021: 79 reached 100+ customers, 5 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 St. Helena Parish reported on EIA Form 861 for 2021, 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 | 2021 | 111.5 hrs | 3.16 | 4.1 hrs | 1.62 |
| Dixie Electric Membership Corp - (LA) | 2021 | 129.7 hrs | 6.65 | 4.0 hrs | 2.89 |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,162 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. St. Helena Parish has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), St. Helena Parish, LA annual power outage report, 2021, 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/2021/louisiana/st-helena-parish