County annual report · FIPS 36049
2021 Lewis County, NY Power Outage Report
In 2021, customers in Lewis County, NY went without power for an average of 15.6 hours, a total of 197K customer-hours (New York average 2.7 hours). That ranks 3rd worst of 62 New York counties and 553rd 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 Lewis 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 | December 11, 2021 23:30 | December 14, 2021 22:00 | 2d 22h | 6,974 | 147K |
| 2 | March 1, 2021 20:30 | March 2, 2021 22:15 | 1d 1h | 2,473 | 3,838 |
| 3 | July 13, 2021 14:15 | July 13, 2021 14:30 | 15m | 1,725 | 431 |
| 4 | June 21, 2021 12:15 | June 23, 2021 01:45 | 1d 13h | 1,546 | 9,331 |
| 5 | July 9, 2021 05:00 | July 9, 2021 07:30 | 2h 30m | 1,353 | 3,383 |
| 6 | December 18, 2021 15:00 | December 18, 2021 23:00 | 8h | 1,132 | 868 |
| 7 | July 30, 2021 10:15 | July 30, 2021 13:45 | 3h 30m | 1,129 | 286 |
| 8 | May 24, 2021 01:00 | May 24, 2021 01:30 | 30m | 1,124 | 562 |
| 9 | May 26, 2021 17:45 | May 27, 2021 23:00 | 1d 5h | 909 | 3,015 |
| 10 | February 28, 2021 06:00 | February 28, 2021 06:45 | 45m | 821 | 616 |
Outage episodes by size in 2021: 43 reached 100+ customers, 8 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 Lewis 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 |
| Village of Boonville - (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 ÷ 12,631 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. Lewis County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lewis 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/lewis-county