County annual report · FIPS 50007
2020 Chittenden County, VT Power Outage Report
In 2020, customers in Chittenden County, VT went without power for an average of 1.2 hours, a total of 139K customer-hours (Vermont average 3.8 hours). That ranks 14th worst of 14 Vermont counties and 2574th of 3,019 nationally.
Compared with VT, the US and 2019
Coverage line is EAGLE-I's share of Vermont customers tracked each year.
Biggest outages in Chittenden County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 11, 2020 23:15 | August 13, 2020 15:45 | 1d 16h | 6,433 | 16K |
| 2 | July 8, 2020 20:45 | July 9, 2020 20:00 | 23h 15m | 5,420 | 23K |
| 3 | October 5, 2020 15:30 | October 5, 2020 17:00 | 1h 30m | 3,807 | 970 |
| 4 | September 7, 2020 11:45 | September 7, 2020 23:45 | 12h | 2,512 | 5,155 |
| 5 | July 26, 2020 02:15 | July 26, 2020 09:30 | 7h 15m | 2,420 | 4,043 |
| 6 | February 8, 2020 04:30 | February 8, 2020 11:45 | 7h 15m | 2,412 | 14K |
| 7 | October 24, 2020 03:45 | October 24, 2020 05:30 | 1h 45m | 1,716 | 3,003 |
| 8 | March 13, 2020 23:15 | March 14, 2020 13:15 | 14h | 1,678 | 3,838 |
| 9 | August 4, 2020 22:45 | August 5, 2020 06:15 | 7h 30m | 1,598 | 5,852 |
| 10 | December 24, 2020 09:15 | December 24, 2020 11:30 | 2h 15m | 1,488 | 811 |
Outage episodes by size in 2020: 98 reached 100+ customers, 15 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 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Vermont Electric Cooperative, Inc | 2020 | 2.6 hrs | 1.63 | 2.6 hrs | 1.63 |
| 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 2020; 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, 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/chittenden-county