County annual report · FIPS 36023
2021 Cortland County, NY Power Outage Report
In 2021, customers in Cortland County, NY went without power for an average of 3.5 hours, a total of 83K customer-hours (New York average 2.7 hours). That ranks 41st worst of 62 New York counties and 1685th 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 Cortland 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 | August 19, 2021 03:30 | August 19, 2021 17:30 | 14h | 3,000 | 3,664 |
| 2 | July 17, 2021 22:15 | July 18, 2021 23:00 | 1d | 1,693 | 15K |
| 3 | March 26, 2021 14:45 | March 27, 2021 23:00 | 1d 8h | 1,362 | 2,975 |
| 4 | March 2, 2021 00:45 | March 3, 2021 00:00 | 23h 15m | 1,296 | 12K |
| 5 | June 10, 2021 10:00 | June 10, 2021 17:30 | 7h 30m | 1,255 | 688 |
| 6 | July 27, 2021 19:30 | July 27, 2021 20:15 | 45m | 1,242 | 932 |
| 7 | March 30, 2021 13:45 | March 30, 2021 17:00 | 3h 15m | 1,235 | 944 |
| 8 | September 22, 2021 20:45 | September 23, 2021 00:00 | 3h 15m | 1,220 | 2,312 |
| 9 | June 17, 2021 14:00 | June 17, 2021 14:15 | 15m | 1,215 | 304 |
| 10 | July 14, 2021 02:45 | July 14, 2021 23:45 | 21h | 1,193 | 5,513 |
Outage episodes by size in 2021: 41 reached 100+ customers, 11 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 Cortland 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 | - | - | - | - | - |
| Village of Marathon - (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 ÷ 23,943 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. Cortland County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cortland 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/cortland-county