massoutage

County annual report · FIPS 50007

2015 Chittenden County, VT Power Outage Report

In 2015, customers in Chittenden County, VT went without power for an average of 0.8 hours, a total of 87K customer-hours (Vermont average 2.6 hours). That ranks 14th worst of 14 Vermont counties and 1891st of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
0.8
113,089 customers
Customer-hours out
87K
Peak customers out
4,886
Outages ≥1,000 out
14
0 of 10,000+ · 817 total
Longest outage
21h
began June 22, 2015
Rank in state
14th/14
1891st of 2,484 US

Compared with VT, the US

Chittenden County, VT average hours without power per customer compared with state and national averages, 2015Chittenden County 0.8 hours, Vermont average 2.6 hours, US average 2.9 hoursChittenden CountyChittenden County0.8hVermont averageVermont average2.6hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Chittenden County, VT customer-hours without power by month, 2015Jan 7,998, Feb 634, Mar 4,304, Apr 14K, May 5,556, Jun 15K, Jul 7,084, Aug 6,366, Sep 4,696, Oct 13K, Nov 6,293, Dec 1,90605k10k15k20k7,998Jan634Feb4,304Mar14KApr5,556May15KJun7,084Jul6,366Aug4,696Sep13KOct6,293Nov1,906Dec
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Customer-hours; June 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, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 4, 2015 16:30August 4, 2015 17:451h 15m4,8861,335
2April 13, 2015 16:00April 13, 2015 19:453h 45m4,8428,177
3September 9, 2015 14:00September 9, 2015 17:153h 15m2,1971,649
4November 4, 2015 21:00November 5, 2015 01:004h2,1413,304
5June 24, 2015 04:30June 24, 2015 06:302h1,9182,650
6May 11, 2015 19:45May 11, 2015 22:002h 15m1,676468
7August 21, 2015 14:30August 21, 2015 15:1545m1,646477
8July 29, 2015 16:15July 30, 2015 04:4512h 30m1,5133,024
9March 26, 2015 19:15March 26, 2015 22:153h1,4881,121
10August 1, 2015 02:15August 1, 2015 05:153h1,3532,340

Outage episodes by size in 2015: 89 reached 100+ customers, 14 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 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Vermont Electric Cooperative, Inc20153.5 hrs1.883.5 hrs1.88
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 n/a of Vermont's customers in 2015; 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, 2015, 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/2015/vermont/chittenden-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON