County annual report · FIPS 22089
2021 St. Charles Parish, LA Power Outage Report
In 2021, customers in St. Charles Parish, LA went without power for an average of 296.2 hours, a total of 9.0M customer-hours (Louisiana average 99.7 hours). That ranks 6th worst of 64 Louisiana counties and 16th 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. Charles 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 11:45 | October 21, 2021 02:00 | 52d 14h | 22,708 | 8.7M |
| 2 | March 10, 2021 05:15 | March 10, 2021 08:00 | 2h 45m | 6,488 | 16K |
| 3 | October 21, 2021 05:16 | December 22, 2021 21:15 | 62d 15h | 3,287 | 93K |
| 4 | April 9, 2021 18:15 | April 10, 2021 00:45 | 6h 30m | 2,909 | 2,926 |
| 5 | April 8, 2021 09:00 | April 8, 2021 19:00 | 10h | 2,228 | 8,442 |
| 6 | July 31, 2021 18:15 | August 6, 2021 20:15 | 6d 2h | 1,798 | 12K |
| 7 | June 20, 2021 20:45 | June 21, 2021 00:15 | 3h 30m | 1,783 | 4,865 |
| 8 | July 19, 2021 17:00 | July 19, 2021 21:30 | 4h 30m | 1,773 | 3,320 |
| 9 | April 13, 2021 17:45 | April 13, 2021 21:30 | 3h 45m | 1,762 | 3,032 |
| 10 | March 17, 2021 14:00 | March 19, 2021 02:15 | 1d 12h | 1,592 | 9,368 |
Outage episodes by size in 2021: 49 reached 100+ customers, 15 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 St. Charles 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 |
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 ÷ 30,265 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. Charles Parish has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), St. Charles 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-charles-parish