massoutage

County annual report · FIPS 22091

2017 St. Helena Parish, LA Power Outage Report

In 2017, customers in St. Helena Parish, LA went without power for an average of 36.5 hours, a total of 152K customer-hours (Louisiana average 7.2 hours). That ranks 3rd worst of 64 Louisiana counties and 131st of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
36.5
4,162 customers
Customer-hours out
152K
Peak customers out
4,702
Outages ≥1,000 out
6
0 of 10,000+ · 662 total
Longest outage
3d 14h
began December 8, 2017
Rank in state
3rd/64
131st of 2,786 US

Compared with LA, the US and 2016

St. Helena Parish, LA average hours without power per customer compared with state and national averages, 2017St. Helena Parish 36.5 hours, Louisiana average 7.2 hours, US average 7.4 hours, St. Helena Parish, 2016 19.8 hoursSt. Helena ParishSt. Helena Parish36.5hLouisiana averageLouisiana average7.2hUS averageUS average7.4hSt. Helena Parish, 2016St. Helena Parish, 2…19.8h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

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St. Helena Parish, LA customer-hours without power by month, 2017Jan 13K, Feb 4,024, Mar 492, Apr 7,113, May 6,821, Jun 3,671, Jul 1,474, Aug 4,138, Sep 1,794, Oct 3,561, Nov 1,208, Dec 105K050k100k150k13KJan4,024Feb492Mar7,113Apr6,821May3,671Jun1,474Jul4,138Aug1,794Sep3,561Oct1,208Nov105KDec
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Customer-hours; December was the worst month.

St. Helena Parish year over year

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St. Helena Parish, LA: average hours without power per customer by year2015: 7.2h; 2016: 19.8h; 2017: 36.5h; 2018: 20.6h, coverage 89%; 2019: 19.1h, coverage 89%; 2020: 54.1h, coverage 90%; 2021: 681.9h, coverage 90%; 2022: 15.3h, coverage 91%; 2023: 18.7h; 2024: 42.0h; 2025: 24.9h02004006008000%50%100%7.2h201519.8h201636.5h201720.6h201819.1h201954.1h2020681.9h202115.3h202218.7h202342.0h202424.9h2025
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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. Helena Parish, 2017

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
1January 2, 2017 18:30January 4, 2017 06:301d 12h4,70211K
2December 8, 2017 10:00December 12, 2017 00:003d 14h3,720103K
3February 7, 2017 14:00February 7, 2017 22:308h 30m1,6092,067
4April 3, 2017 07:15April 3, 2017 22:4515h 30m1,1653,640
5May 29, 2017 04:30May 29, 2017 09:154h 45m1,1582,273
6May 7, 2017 18:45May 7, 2017 20:151h 30m1,0991,649
7June 20, 2017 23:30June 21, 2017 14:3015h9991,822
8August 9, 2017 15:45August 9, 2017 16:3045m897673
9December 22, 2017 21:00December 23, 2017 01:154h 15m543447
10May 20, 2017 18:15May 21, 2017 04:1510h515849

Outage episodes by size in 2017: 53 reached 100+ customers, 6 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 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Entergy Louisiana LLC20176.5 hrs2.102.9 hrs1.48
Dixie Electric Membership Corp - (LA)20179.7 hrs3.874.1 hrs2.97

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 2017; 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, 2017, 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/2017/louisiana/st-helena-parish

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON