massoutage

County annual report · FIPS 37173

2017 Swain County, NC Power Outage Report

In 2017, customers in Swain County, NC went without power for an average of - hours, a total of 215K customer-hours (North Carolina average 10.0 hours).

Summary data CSVJSON
Avg hrs / customer
-
Customer-hours out
215K
Peak customers out
3,705
Outages ≥1,000 out
5
0 of 10,000+ · 407 total
Longest outage
4d 1h
began September 11, 2017
Rank in state
-

Compared with NC, the US and 2016

Swain County, NC average hours without power per customer compared with state and national averages, 2017North Carolina average 10.0 hours, US average 7.4 hoursNorth Carolina averageNorth Carolina avera…10.0hUS averageUS average7.4h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

CSVJSON
Swain County, NC customer-hours without power by month, 2017Jan 629, Feb 2,897, Mar 58K, Apr 8,466, May 68K, Jun 7,747, Jul 5,580, Aug 9,142, Sep 21K, Oct 4,390, Nov 113, Dec 29K020k40k60k80k629Jan2,897Feb58KMar8,466Apr68KMay7,747Jun5,580Jul9,142Aug21KSep4,390Oct113Nov29KDec
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Customer-hours; May was the worst month.

Swain County year over year

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Swain County, NC: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: no data, coverage 82%; 2019: no data, coverage 90%; 2020: no data, coverage 91%; 2021: no data, coverage 92%; 2022: no data, coverage 92%; 2023: no data; 2024: no data; 2025: no data00.30.50.810%50%100%n/a2015n/a2016n/a2017n/a2018n/a2019n/a2020n/a2021n/a2022n/a2023n/a2024n/a2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

No loaded years to plot yet.

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

Biggest outages in Swain County, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 22, 2017 01:30March 23, 2017 20:151d 18h3,70556K
2May 28, 2017 03:15May 30, 2017 00:301d 21h2,83956K
3December 8, 2017 15:45December 11, 2017 14:152d 22h2,26524K
4October 10, 2017 09:45October 10, 2017 20:4511h1,3821,448
5February 10, 2017 20:45February 10, 2017 21:1530m1,060530
6May 24, 2017 12:30May 25, 2017 03:0014h 30m8535,731
7April 22, 2017 02:45April 22, 2017 06:003h 15m6951,391
8April 27, 2017 14:00April 27, 2017 23:309h 30m6882,228
9May 4, 2017 12:15May 8, 2017 00:003d 11h6321,437
10June 24, 2017 15:30June 24, 2017 22:457h 15m6243,477

Outage episodes by size in 2017: 53 reached 100+ customers, 5 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 Swain County reported on EIA Form 861 for 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Carolinas, LLC20178.8 hrs1.523.1 hrs1.11
Duke Energy-----

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 North Carolina's customers in 2017; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ modeled 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. Swain County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Swain County, NC 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/north-carolina/swain-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON