County annual report · FIPS 22105
2021 Tangipahoa Parish, LA Power Outage Report
In 2021, customers in Tangipahoa Parish, LA went without power for an average of 323.1 hours, a total of 17.6M customer-hours (Louisiana average 99.7 hours). That ranks 4th worst of 64 Louisiana counties and 14th 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 Tangipahoa 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 28, 2021 13:30 | October 21, 2021 02:00 | 53d 12h | 68,621 | 16.6M |
| 2 | June 1, 2021 13:00 | June 3, 2021 07:45 | 1d 18h | 14,001 | 24K |
| 3 | February 15, 2021 09:30 | February 22, 2021 04:15 | 6d 18h | 13,390 | 330K |
| 4 | March 31, 2021 13:30 | April 14, 2021 08:00 | 13d 18h | 8,245 | 37K |
| 5 | November 29, 2021 13:45 | December 15, 2021 03:30 | 15d 13h | 7,795 | 74K |
| 6 | May 15, 2021 12:15 | May 25, 2021 05:30 | 9d 17h | 6,460 | 18K |
| 7 | March 17, 2021 12:00 | March 19, 2021 04:45 | 1d 16h | 6,152 | 22K |
| 8 | April 19, 2021 15:00 | May 8, 2021 04:00 | 18d 13h | 5,213 | 51K |
| 9 | October 21, 2021 05:16 | November 25, 2021 01:15 | 34d 19h | 4,325 | 151K |
| 10 | August 17, 2021 13:30 | August 27, 2021 01:45 | 9d 12h | 4,309 | 37K |
Outage episodes by size in 2021: 92 reached 100+ customers, 26 reached 1,000+ customers, 3 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 Tangipahoa 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 |
| Washington-St Tammany E C, Inc | 2021 | 125.8 hrs | 5.79 | 10.2 hrs | 3.58 |
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 ÷ 54,543 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. Tangipahoa Parish has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Tangipahoa 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/tangipahoa-parish