FieldProspects

Ontario County, New York

Ontario County, New York has 35 power projects in the FieldProspects database: 34 operating plants totaling 80.8 MW and 1 planned project totaling 20 MW. No data center record lists the county. Solar leads with 86.2 MW across 22 projects.

Data as of Grid region: New York ISO (NYISO)Refreshed monthly
35
power projects, planned and operating
20MW
planned generation, 1 project
80.8MW
operating generation, 34 projects
0
planned projects past their listed in-service date
Map

Ontario County and its neighbors

Counties shaded by data center MW on record, planned to operating. 6 of its 6 neighboring counties have pages of their own. The rest are in the member database.

Seneca no data centers Wayne no data centers Monroe no data centers Livingston no data centers Steuben no data centers Yates 200 MW Ontario no data centers
no data center MWunder 100 MW100 to 1,000 MW1,000 to 5,000 MW5,000 to 15,000 MW15,000 MW or more no page yet

Data center records planned, under construction and operating, data as of October 8, 2026.Hover a county for its numbers

Headline finding
25%

of the county's operating generation is in the queue as new capacity: 20 MW planned across 1 project against 80.8 MW operating.

Operating generation80.8 MW
Planned generation20 MW

Technology mix

35 projects, 100.8 MW planned and operating

Solar86.2 MW22 projects, 86%
Landfill Gas11.2 MW11 projects, 11%
Wind3.4 MW2 projects, 3%
Which companies own these 35 projects?Project names, developers and contacts are for members.See what members get

Power generation in the county

34 plants operate inside Ontario County, 80.8 MW. The queue adds 20 MW across 1 project.

Figure 1

Operating and planned generation by technology

MW in Ontario County

OperatingPlanned
SolarOperating 66.2 MW 21 projects
SolarPlanned 20 MW 1 project
Landfill GasOperating 11.2 MW 11 projects
WindOperating 3.4 MW 2 projects
View as table
TechnologyStatusProjectsMW
SolarOperating2166.2
SolarPlanned120
Landfill GasOperating1111.2
WindOperating23.4
Operating: 80.8 MW. Planned: 20 MW. If every planned project is built, county generation would reach 100.8 MW.
Source. FieldProspects database: ISO/RTO interconnection queues, EIA-860M and public data center filings, data as of October 8, 2026.
Figure 2

Planned generation by listed in-service year

MW. Years before 2026 are past due.

Past dueDue 2026 or later
05101520 20 2027
View as table
YearPlanned projectsMW
2027120
No planned project is past its listed year

Ontario County against its neighbors

Yates County has the most data center MW among the neighbors, 200 MW. 5 of the 6 have more generation operating than data center MW on record.

CountyData center recordsData center MWOperating generation MWPlanned generation MWData center MW per MW operating
Yates County 1
200
136
0 1.5x
Wayne County 0
0
635
5 0x
Steuben County 0
0
568
1,040 0x
Monroe County 0
0
371
104 0x
Livingston County 0
0
218
572 0x
Ontario County this page 0
0
81
20 0x
Seneca County 0
0
40
290 0x

Data center MW counts records planned, under construction and operating. Generation is inside the county only. Neighbors without a page have fewer than three projects on record.

7 counties shown

What changed since June 4, 2026

2 projects in Ontario County moved between the two snapshots. Counts and MW are below; the projects themselves are for members.

Open the change feed
0
added to a queue, 0 MW
2
came online, started construction or signed an interconnection agreement, 10 MW
0
cancelled, dropped or went inactive, 0 MW
0
slipped their in-service date, 0 MW

Every change in Ontario County

Project, what changed, technology, MW and the dates that moved, for all 2 changes.

Members only
County: Ontario County, NYSince June 4, 2026 2 changes
ProjectChangeTechnologyMWPrevious dateNew date
2 changes behind this preview

Rows are hidden on public pages. Members see the project behind each change, its developer and the dates that moved.

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Every record in Ontario County

Project name, developer, status, MW, in-service year and the developer’s contacts, for all 35 records. Filter, sort and export to Excel.

Members only
County: Ontario County, NYStatus: all except cancelledSort: MW, largest first 35 records
Project or campusDeveloperStatusMWYearContacts
35 records and 100.8 MW behind this preview

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