County annual report · FIPS 36045
2020 Jefferson County, NY Power Outage Report
In 2020, customers in Jefferson County, NY went without power for an average of 2.4 hours, a total of 151K customer-hours (New York average 10.4 hours). That ranks 49th worst of 62 New York counties and 2079th of 3,019 nationally.
Compared with NY, the US and 2019
Coverage line is EAGLE-I's share of New York customers tracked each year.
Biggest outages in Jefferson 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 | May 6, 2020 22:45 | May 7, 2020 02:15 | 3h 30m | 9,343 | 14K |
| 2 | May 25, 2020 09:30 | May 25, 2020 18:15 | 8h 45m | 2,835 | 7,392 |
| 3 | May 18, 2020 06:30 | May 18, 2020 17:30 | 11h | 2,727 | 8,994 |
| 4 | June 11, 2020 06:45 | June 11, 2020 08:30 | 1h 45m | 2,594 | 4,540 |
| 5 | November 2, 2020 09:15 | November 2, 2020 18:00 | 8h 45m | 2,529 | 4,979 |
| 6 | April 29, 2020 13:30 | April 30, 2020 08:45 | 19h 15m | 2,518 | 5,818 |
| 7 | February 27, 2020 12:00 | February 28, 2020 08:00 | 20h | 2,477 | 12K |
| 8 | August 16, 2020 16:00 | August 16, 2020 23:30 | 7h 30m | 2,297 | 5,595 |
| 9 | April 27, 2020 00:15 | April 27, 2020 17:15 | 17h | 2,258 | 2,926 |
| 10 | October 28, 2020 18:15 | October 29, 2020 01:45 | 7h 30m | 2,239 | 1,265 |
Outage episodes by size in 2020: 77 reached 100+ customers, 21 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 Jefferson 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 |
|---|---|---|---|---|---|
| Niagara Mohawk Power Corp. | 2020 | 7.6 hrs | 1.50 | 2.4 hrs | 1.09 |
| Village of Philadelphia - (NY) | - | - | - | - | - |
| Village of Theresa - (NY) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of New York's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 62,240 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. Jefferson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson County, NY 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/new-york/jefferson-county