County annual report · FIPS 36045
2023 Jefferson County, NY Power Outage Report
In 2023, customers in Jefferson County, NY went without power for an average of 1.4 hours, a total of 88K customer-hours (New York average 2.2 hours). That ranks 54th worst of 62 New York counties and 2520th of 2,977 nationally.
Compared with NY, the US and 2022
Coverage line is EAGLE-I's share of New York customers tracked each year.
Biggest outages in Jefferson County, 2023
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 28, 2023 18:15 | November 28, 2023 19:15 | 1h | 5,660 | 1,420 |
| 2 | June 6, 2023 05:30 | June 6, 2023 07:45 | 2h 15m | 3,080 | 3,084 |
| 3 | July 24, 2023 11:30 | July 24, 2023 20:00 | 8h 30m | 2,994 | 1,340 |
| 4 | June 11, 2023 13:45 | June 11, 2023 23:30 | 9h 45m | 2,431 | 7,563 |
| 5 | September 1, 2023 21:00 | September 2, 2023 03:00 | 6h | 1,999 | 632 |
| 6 | July 29, 2023 12:30 | July 30, 2023 05:30 | 17h | 1,288 | 1,413 |
| 7 | March 17, 2023 20:15 | March 18, 2023 04:00 | 7h 45m | 1,241 | 2,299 |
| 8 | August 4, 2023 10:45 | August 5, 2023 03:15 | 16h 30m | 1,172 | 6,057 |
| 9 | May 16, 2023 21:00 | May 17, 2023 10:45 | 13h 45m | 1,159 | 7,168 |
| 10 | January 22, 2023 16:00 | January 22, 2023 20:30 | 4h 30m | 1,111 | 2,070 |
Outage episodes by size in 2023: 60 reached 100+ customers, 12 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 2023, 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. | 2023 | 3.5 hrs | 1.14 | 2.2 hrs | 0.98 |
| 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 n/a of New York's customers in 2023; 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, 2023, 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/2023/new-york/jefferson-county