County annual report · FIPS 36069
2018 Ontario County, NY Power Outage Report
In 2018, customers in Ontario County, NY went without power for an average of 2.7 hours, a total of 208K customer-hours (New York average 7.4 hours). That ranks 56th worst of 60 New York counties and 1598th of 2,798 nationally.
Compared with NY, the US and 2017
Coverage line is EAGLE-I's share of New York customers tracked each year.
Biggest outages in Ontario County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 10, 2018 14:30 | July 11, 2018 00:00 | 9h 30m | 47,792 | 13K |
| 2 | April 23, 2018 02:30 | April 23, 2018 07:30 | 5h | 7,159 | 11K |
| 3 | January 16, 2018 16:00 | January 16, 2018 23:00 | 7h | 5,353 | 2,902 |
| 4 | April 4, 2018 14:15 | April 8, 2018 00:00 | 3d 9h | 4,587 | 68K |
| 5 | April 25, 2018 06:30 | April 25, 2018 06:45 | 15m | 4,154 | 1,039 |
| 6 | April 13, 2018 18:00 | April 13, 2018 22:30 | 4h 30m | 3,415 | 5,300 |
| 7 | May 29, 2018 12:15 | May 29, 2018 15:30 | 3h 15m | 3,112 | 2,341 |
| 8 | July 24, 2018 00:15 | July 24, 2018 07:30 | 7h 15m | 2,514 | 667 |
| 9 | July 25, 2018 07:00 | July 25, 2018 07:15 | 15m | 2,514 | 629 |
| 10 | November 13, 2018 07:15 | November 13, 2018 09:15 | 2h | 2,401 | 4,202 |
Outage episodes by size in 2018: 89 reached 100+ customers, 21 reached 1,000+ customers, 1 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 Ontario County reported on EIA Form 861 for 2018, 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. | 2018 | 6.6 hrs | 1.53 | 2.5 hrs | 1.06 |
| AVANGRID | - | - | - | - | - |
| Rochester Gas & Electric Corp | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 98% of New York's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 75,985 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. Ontario County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Ontario County, NY annual power outage report, 2018, 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/2018/new-york/ontario-county