massoutage

County annual report · FIPS 22095

2021 St. John the Baptist Parish, LA Power Outage Report

In 2021, customers in St. John the Baptist Parish, LA went without power for an average of 338.9 hours, a total of 7.5M customer-hours (Louisiana average 99.7 hours). That ranks 3rd worst of 64 Louisiana counties and 13th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
338.9
22,092 customers
Customer-hours out
7.5M
Peak customers out
19,726
Outages ≥1,000 out
16
2 of 10,000+ · 437 total
Longest outage
53d 20h
began August 28, 2021
Rank in state
3rd/64
13th of 2,974 US

Compared with LA, the US and 2020

St. John the Baptist Parish, LA average hours without power per customer compared with state and national averages, 2021St. John the Baptist Parish 338.9 hours, Louisiana average 99.7 hours, US average 8.9 hours, St. John the Baptist Parish, 2020 14.1 hoursSt. John the Baptist ParishSt. John the Baptist…338.9hLouisiana averageLouisiana average99.7hUS averageUS average8.9hSt. John the Baptist Parish, 2020St. John the Baptist…14.1h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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St. John the Baptist Parish, LA customer-hours without power by month, 2021Jan 3,215, Feb 20K, Mar 11K, Apr 14K, May 12K, Jun 22K, Jul 15K, Aug 1.0M, Sep 6.3M, Oct 83K, Nov 35K, Dec 15K02M4M6M8M3,215Jan20KFeb11KMar14KApr12KMay22KJun15KJul1.0MAug6.3MSep83KOct35KNov15KDec
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Customer-hours; September was the worst month.

St. John the Baptist Parish year over year

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St. John the Baptist Parish, LA: average hours without power per customer by year2015: 5.2h; 2016: 23.6h; 2017: 3.0h; 2018: 6.4h, coverage 89%; 2019: 8.6h, coverage 89%; 2020: 14.1h, coverage 90%; 2021: 338.9h, coverage 90%; 2022: 9.2h, coverage 91%; 2023: 9.7h; 2024: 25.6h; 2025: 6.9h01002003004000%50%100%5.2h201523.6h20163.0h20176.4h20188.6h201914.1h2020338.9h20219.2h20229.7h202325.6h20246.9h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Louisiana customers tracked each year.

Biggest outages in St. John the Baptist Parish, 2021

The 10 outage episodes with the most customers out at once. Times are UTC.

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 28, 2021 05:15October 21, 2021 02:0053d 20h19,7267.3M
2October 21, 2021 05:16December 6, 2021 07:1546d 1h13,79468K
3January 15, 2021 13:45January 15, 2021 23:159h 30m3,9262,085
4March 13, 2021 16:00March 13, 2021 16:4545m3,9221,961
5April 13, 2021 17:15April 13, 2021 21:304h 15m3,3786,133
6December 6, 2021 16:45December 18, 2021 19:1512d 2h2,80611K
7May 18, 2021 06:45May 18, 2021 14:307h 45m2,7975,093
8June 6, 2021 06:00June 7, 2021 01:3019h 30m2,7818,808
9July 9, 2021 14:45July 10, 2021 02:3011h 45m2,7746,341
10August 26, 2021 23:00August 27, 2021 00:451h 45m2,7573,855

Outage episodes by size in 2021: 56 reached 100+ customers, 16 reached 1,000+ customers, 2 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. John the Baptist Parish reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Entergy Louisiana LLC2021111.5 hrs3.164.1 hrs1.62

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 ÷ 22,092 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. John the Baptist Parish has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), St. John the Baptist 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-john-the-baptist-parish

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON