County annual report · FIPS 36031
2021 Essex County, NY Power Outage Report
In 2021, customers in Essex County, NY went without power for an average of 9.8 hours, a total of 230K customer-hours (New York average 2.7 hours). That ranks 11th worst of 62 New York counties and 791st of 2,974 nationally.
Compared with NY, the US and 2020
Coverage line is EAGLE-I's share of New York customers tracked each year.
Biggest outages in Essex 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 | October 7, 2021 05:00 | October 7, 2021 20:15 | 15h 15m | 7,359 | 61K |
| 2 | December 12, 2021 01:15 | December 14, 2021 18:30 | 2d 17h | 3,977 | 70K |
| 3 | March 3, 2021 21:30 | March 4, 2021 01:15 | 3h 45m | 2,617 | 730 |
| 4 | May 26, 2021 18:30 | May 28, 2021 00:45 | 1d 6h | 2,285 | 20K |
| 5 | March 12, 2021 21:45 | March 12, 2021 23:30 | 1h 45m | 1,696 | 451 |
| 6 | June 21, 2021 17:15 | June 22, 2021 00:00 | 6h 45m | 1,655 | 1,907 |
| 7 | July 2, 2021 15:00 | July 2, 2021 15:45 | 45m | 1,452 | 1,089 |
| 8 | January 16, 2021 11:30 | January 17, 2021 19:15 | 1d 7h | 1,231 | 4,993 |
| 9 | April 15, 2021 20:30 | April 16, 2021 01:00 | 4h 30m | 1,177 | 1,508 |
| 10 | September 24, 2021 09:00 | September 24, 2021 19:45 | 10h 45m | 1,125 | 2,829 |
Outage episodes by size in 2021: 73 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 Essex 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 |
|---|---|---|---|---|---|
| New York State Elec & Gas Corp | 2016 | 4.5 hrs | 1.56 | 3.6 hrs | 1.47 |
| Niagara Mohawk Power Corp. | 2021 | 3.7 hrs | 1.32 | 2.2 hrs | 1.12 |
| AVANGRID | - | - | - | - | - |
| Lake Placid Village, Inc - (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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 23,389 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. Essex County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Essex County, NY 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2021/new-york/essex-county