County annual report · FIPS 50027
2021 Windsor County, VT Power Outage Report
In 2021, customers in Windsor County, VT went without power for an average of 7.3 hours, a total of 278K customer-hours (Vermont average 4.3 hours). That ranks 3rd worst of 14 Vermont counties and 1004th 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 Windsor 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 | May 26, 2021 18:00 | May 28, 2021 04:15 | 1d 10h | 7,713 | 24K |
| 2 | January 16, 2021 14:15 | January 18, 2021 00:30 | 1d 10h | 7,227 | 50K |
| 3 | June 21, 2021 11:45 | June 22, 2021 08:45 | 21h | 3,934 | 4,416 |
| 4 | April 16, 2021 05:45 | April 17, 2021 04:00 | 22h 15m | 3,100 | 15K |
| 5 | June 30, 2021 16:00 | July 2, 2021 02:45 | 1d 10h | 2,742 | 20K |
| 6 | March 29, 2021 09:45 | March 30, 2021 03:15 | 17h 30m | 1,906 | 11K |
| 7 | September 8, 2021 17:45 | September 9, 2021 07:00 | 13h 15m | 1,711 | 5,300 |
| 8 | March 1, 2021 21:45 | March 3, 2021 02:30 | 1d 4h | 1,693 | 12K |
| 9 | December 6, 2021 23:00 | December 7, 2021 17:30 | 18h 30m | 1,572 | 6,790 |
| 10 | July 19, 2021 06:00 | July 19, 2021 16:45 | 10h 45m | 1,536 | 5,717 |
Outage episodes by size in 2021: 114 reached 100+ customers, 22 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 Windsor 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 |
|---|---|---|---|---|---|
| Green Mountain Power Corp | - | - | - | - | - |
| Village of Ludlow - (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 ÷ 38,107 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. Windsor County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Windsor 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/). https://massoutage.com/reports/2021/vermont/windsor-county