County annual report · FIPS 50007
2025 Chittenden County, VT Power Outage Report
In 2025, customers in Chittenden County, VT went without power for an average of 0.9 hours, a total of 100K customer-hours (Vermont average 4.1 hours). That ranks 14th worst of 14 Vermont counties and 2790th of 3,000 nationally.
Compared with VT, the US and 2024
Coverage line is EAGLE-I's share of Vermont customers tracked each year.
Biggest outages in Chittenden County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 17, 2025 11:15 | November 17, 2025 14:45 | 3h 30m | 4,109 | 1,229 |
| 2 | April 11, 2025 04:30 | April 11, 2025 09:00 | 4h 30m | 2,789 | 4,350 |
| 3 | September 7, 2025 10:15 | September 7, 2025 12:45 | 2h 30m | 2,527 | 5,052 |
| 4 | March 16, 2025 17:45 | March 17, 2025 07:15 | 13h 30m | 2,018 | 8,227 |
| 5 | December 2, 2025 13:45 | December 2, 2025 17:00 | 3h 15m | 1,853 | 5,421 |
| 6 | March 11, 2025 17:15 | March 11, 2025 20:15 | 3h | 1,801 | 2,702 |
| 7 | December 29, 2025 22:00 | December 30, 2025 01:15 | 3h 15m | 1,752 | 3,505 |
| 8 | September 24, 2025 20:45 | September 25, 2025 02:30 | 5h 45m | 1,626 | 1,501 |
| 9 | July 3, 2025 12:30 | July 4, 2025 04:00 | 15h 30m | 1,540 | 3,010 |
| 10 | October 31, 2025 09:00 | October 31, 2025 14:15 | 5h 15m | 1,432 | 3,954 |
Outage episodes by size in 2025: 78 reached 100+ customers, 13 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 2025, 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 | 2024 | 14.9 hrs | 3.34 | 3.9 hrs | 1.40 |
| 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 2025; 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, 2025, 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/2025/vermont/chittenden-county