massoutage

County annual report · FIPS 50007

2019 Chittenden County, VT Power Outage Report

In 2019, customers in Chittenden County, VT went without power for an average of 1.2 hours, a total of 132K customer-hours (Vermont average 6.8 hours). That ranks 14th worst of 14 Vermont counties and 2427th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
1.2
113,089 customers
Customer-hours out
132K
Peak customers out
4,375
Outages ≥1,000 out
21
0 of 10,000+ · 849 total
Longest outage
2d 3h
began October 31, 2019
Rank in state
14th/14
2427th of 2,945 US

Compared with VT, the US and 2018

Chittenden County, VT average hours without power per customer compared with state and national averages, 2019Chittenden County 1.2 hours, Vermont average 6.8 hours, US average 4.7 hours, Chittenden County, 2018 1.5 hoursChittenden CountyChittenden County1.2hVermont averageVermont average6.8hUS averageUS average4.7hChittenden County, 2018Chittenden County, 2…1.5h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

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Chittenden County, VT customer-hours without power by month, 2019Jan 2,621, Feb 2,076, Mar 16K, Apr 13K, May 1,539, Jun 9,972, Jul 21K, Aug 13K, Sep 13K, Oct 7,957, Nov 28K, Dec 3,269010k20k30k2,621Jan2,076Feb16KMar13KApr1,539May9,972Jun21KJul13KAug13KSep7,957Oct28KNov3,269Dec
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Customer-hours; November was the worst month.

Chittenden County year over year

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Chittenden County, VT: average hours without power per customer by year2015: 0.8h; 2016: 1.1h; 2017: 6.8h; 2018: 1.5h, coverage 100%; 2019: 1.2h, coverage 100%; 2020: 1.2h, coverage 100%; 2021: 1.6h, coverage 100%; 2022: 4.5h, coverage 100%; 2023: 1.0h; 2024: 6.9h; 2025: 0.9h024680%50%100%0.8h20151.1h20166.8h20171.5h20181.2h20191.2h20201.6h20214.5h20221.0h20236.9h20240.9h2025
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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 Vermont customers tracked each year.

Biggest outages in Chittenden County, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 30, 2019 15:30July 31, 2019 09:0017h 30m4,37512K
2April 13, 2019 03:45April 13, 2019 07:153h 30m2,2995,175
3July 6, 2019 17:15July 6, 2019 22:455h 30m1,8935,718
4March 23, 2019 02:15March 24, 2019 05:151d 3h1,84312K
5August 9, 2019 10:30August 10, 2019 03:4517h 15m1,7501,807
6August 5, 2019 12:15August 5, 2019 15:303h 15m1,6334,490
7April 26, 2019 17:00April 27, 2019 01:458h 45m1,4812,129
8October 31, 2019 23:45November 3, 2019 03:302d 3h1,40419K
9September 14, 2019 03:00September 14, 2019 14:3011h 30m1,3652,301
10August 11, 2019 17:30August 11, 2019 19:452h 15m1,3252,978

Outage episodes by size in 2019: 93 reached 100+ customers, 21 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 Chittenden County reported on EIA Form 861 for 2019, 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, Inc201815.5 hrs3.396.0 hrs2.34
Green Mountain Power Corp-----
City of Burlington Electric - (VT)-----

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 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 113,089 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. Chittenden County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Chittenden County, VT annual power outage report, 2019, 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/2019/vermont/chittenden-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON