County annual report · FIPS 50009
2021 Essex County, VT Power Outage Report
In 2021, customers in Essex County, VT went without power for an average of 14.3 hours, a total of 31K customer-hours (Vermont average 4.3 hours). That ranks 2nd worst of 14 Vermont counties and 590th of 2,974 nationally.
Compared with VT, the US and 2020
Coverage line is EAGLE-I's share of Vermont customers tracked each year.
Biggest outages in Essex County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 17, 2021 09:15 | December 17, 2021 23:15 | 14h | 963 | 5,107 |
| 2 | December 7, 2021 01:15 | December 7, 2021 17:30 | 16h 15m | 936 | 2,703 |
| 3 | August 23, 2021 17:00 | August 23, 2021 17:30 | 30m | 734 | 367 |
| 4 | August 7, 2021 22:00 | August 7, 2021 23:45 | 1h 45m | 730 | 1,104 |
| 5 | June 21, 2021 20:45 | June 22, 2021 19:45 | 23h | 606 | 5,215 |
| 6 | July 1, 2021 10:00 | July 1, 2021 13:00 | 3h | 586 | 149 |
| 7 | June 30, 2021 22:00 | June 30, 2021 22:15 | 15m | 585 | 146 |
| 8 | October 7, 2021 15:00 | October 7, 2021 23:00 | 8h | 585 | 891 |
| 9 | March 30, 2021 03:00 | March 30, 2021 03:15 | 15m | 584 | 146 |
| 10 | April 16, 2021 19:15 | April 16, 2021 19:30 | 15m | 583 | 146 |
Outage episodes by size in 2021: 33 reached 100+ customers, 0 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 Essex County reported on EIA Form 861 for 2021, 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 | 2021 | 3.6 hrs | 1.91 | 3.6 hrs | 1.91 |
| Green Mountain Power Corp | - | - | - | - | - |
| Village of Lyndonville - (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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,162 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. Essex County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Essex County, VT annual power outage report, 2021, 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/2021/vermont/essex-county