County annual report · FIPS 22103
2016 St. Tammany Parish, LA Power Outage Report
In 2016, customers in St. Tammany Parish, LA went without power for an average of 1.7 hours, a total of 284K customer-hours (Louisiana average 6.8 hours). That ranks 63rd worst of 64 Louisiana counties and 1438th of 2,391 nationally.
Compared with LA, the US and 2015
Coverage line is EAGLE-I's share of Louisiana customers tracked each year.
Biggest outages in St. Tammany Parish, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 20, 2016 04:00 | May 24, 2016 18:45 | 4d 14h | 7,622 | 27K |
| 2 | June 29, 2016 11:30 | June 30, 2016 05:00 | 17h 30m | 4,853 | 2,661 |
| 3 | September 1, 2016 02:30 | September 1, 2016 04:00 | 1h 30m | 4,612 | 4,923 |
| 4 | August 4, 2016 18:45 | August 6, 2016 01:30 | 1d 6h | 4,473 | 5,801 |
| 5 | February 15, 2016 18:30 | February 16, 2016 05:15 | 10h 45m | 3,776 | 6,066 |
| 6 | April 18, 2016 13:45 | May 2, 2016 18:30 | 14d 4h | 3,732 | 12K |
| 7 | August 25, 2016 02:30 | August 25, 2016 05:30 | 3h | 3,126 | 1,238 |
| 8 | October 28, 2016 08:00 | October 28, 2016 19:30 | 11h 30m | 2,959 | 2,327 |
| 9 | June 28, 2016 00:00 | June 28, 2016 06:30 | 6h 30m | 2,833 | 2,985 |
| 10 | March 28, 2016 12:30 | March 28, 2016 22:00 | 9h 30m | 2,821 | 836 |
Outage episodes by size in 2016: 188 reached 100+ customers, 36 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. Tammany Parish reported on EIA Form 861 for 2016, 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 | 2016 | 6.7 hrs | 1.75 | 2.8 hrs | 1.47 |
| Washington-St Tammany E C, Inc | 2016 | 5.9 hrs | 3.21 | 4.5 hrs | 2.95 |
| Cleco Power LLC | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Louisiana's customers in 2016; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 164,188 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. Tammany Parish has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), St. Tammany Parish, LA annual power outage report, 2016, 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/2016/louisiana/st-tammany-parish