County annual report · FIPS 50025
2021 Windham County, VT Power Outage Report
In 2021, customers in Windham County, VT went without power for an average of 21.2 hours, a total of 320K customer-hours (Vermont average 4.3 hours). That ranks 1st worst of 14 Vermont counties and 410th 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 Windham 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 | January 16, 2021 14:15 | January 19, 2021 00:30 | 2d 10h | 11,839 | 112K |
| 2 | March 1, 2021 21:45 | March 2, 2021 23:45 | 1d 2h | 4,746 | 19K |
| 3 | April 16, 2021 01:00 | April 16, 2021 04:00 | 3h | 4,070 | 8,958 |
| 4 | March 13, 2021 01:00 | March 13, 2021 14:00 | 13h | 3,719 | 15K |
| 5 | February 27, 2021 18:45 | February 27, 2021 21:45 | 3h | 3,383 | 4,031 |
| 6 | March 26, 2021 21:30 | March 27, 2021 16:15 | 18h 45m | 2,841 | 10K |
| 7 | June 30, 2021 20:00 | July 1, 2021 08:30 | 12h 30m | 2,787 | 11K |
| 8 | May 26, 2021 15:30 | May 28, 2021 00:00 | 1d 8h | 2,349 | 8,250 |
| 9 | May 6, 2021 11:45 | May 6, 2021 19:30 | 7h 45m | 2,221 | 1,639 |
| 10 | December 12, 2021 03:30 | December 12, 2021 21:00 | 17h 30m | 2,081 | 8,497 |
Outage episodes by size in 2021: 121 reached 100+ customers, 25 reached 1,000+ customers, 1 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 Windham 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 Jacksonville - (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 ÷ 15,121 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. Windham County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Windham 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/windham-county