massoutage

County annual report · FIPS 50013

2020 Grand Isle County, VT Power Outage Report

In 2020, customers in Grand Isle County, VT went without power for an average of 2.3 hours, a total of 4,721 customer-hours (Vermont average 3.8 hours). That ranks 10th worst of 14 Vermont counties and 2123rd of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
2.3
2,040 customers
Customer-hours out
4,721
Peak customers out
1,102
Outages ≥1,000 out
1
0 of 10,000+ · 201 total
Longest outage
9h 15m
began October 11, 2020
Rank in state
10th/14
2123rd of 3,019 US

Compared with VT, the US and 2019

Grand Isle County, VT average hours without power per customer compared with state and national averages, 2020Grand Isle County 2.3 hours, Vermont average 3.8 hours, US average 8.7 hours, Grand Isle County, 2019 5.7 hoursGrand Isle CountyGrand Isle County2.3hVermont averageVermont average3.8hUS averageUS average8.7hGrand Isle County, 2019Grand Isle County, 2…5.7h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Grand Isle County, VT customer-hours without power by month, 2020Jan 838, Feb 103, Mar 358, Apr 291, May 1,433, Jun 262, Jul 659, Aug 150, Sep 341, Oct 97, Nov 70, Dec 11905001k1.5k838Jan103Feb358Mar291Apr1,433May262Jun659Jul150Aug341Sep97Oct70Nov119Dec
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Customer-hours; May was the worst month.

Grand Isle County year over year

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Grand Isle County, VT: average hours without power per customer by year2015: 5.0h; 2016: 4.1h; 2017: 15.7h; 2018: 10.4h, coverage 100%; 2019: 5.7h, coverage 100%; 2020: 2.3h, coverage 100%; 2021: 4.3h, coverage 100%; 2022: 26.2h, coverage 100%; 2023: 2.6h; 2024: 17.1h; 2025: 7.6h01020300%50%100%5.0h20154.1h201615.7h201710.4h20185.7h20192.3h20204.3h202126.2h20222.6h202317.1h20247.6h2025
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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 Vermont customers tracked each year.

Biggest outages in Grand Isle County, 2020

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
1May 11, 2020 10:30May 11, 2020 11:451h 15m1,1021,377
2March 14, 2020 02:45March 14, 2020 03:0015m20451
3January 10, 2020 01:15January 10, 2020 04:002h 45m201361
4July 1, 2020 17:00July 1, 2020 18:451h 45m146183
5January 12, 2020 11:45January 12, 2020 16:154h 30m136428
6June 26, 2020 12:30June 26, 2020 14:452h 15m11591
7April 28, 2020 12:45April 28, 2020 13:3045m10075
8March 19, 2020 11:00March 19, 2020 12:301h 30m87130
9March 20, 2020 21:45March 20, 2020 23:001h 15m8694
10July 17, 2020 05:45July 17, 2020 14:008h 15m82146

Outage episodes by size in 2020: 7 reached 100+ customers, 1 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 Grand Isle County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Vermont Electric Cooperative, Inc20202.6 hrs1.632.6 hrs1.63

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 100% of Vermont's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 2,040 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. Grand Isle County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Grand Isle County, VT annual power outage report, 2020, 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/2020/vermont/grand-isle-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON