FieldProspects

Onondaga County, New York

Onondaga County, New York has 300 MW of data centers on record, planned to operating, across 1 record, against 397.7 MW of generation operating inside the county. The queue adds 587.3 MW of planned generation across 10 projects. That is 3% of New York's data center MW.

Data as of Grid region: New York ISO (NYISO)Refreshed monthly
300MW
data centers, planned to operating
1
data center records, not cancelled
3%
of New York's data center MW
397.7MW
operating generation, 40 projects
587.3MW
planned generation, 10 projects
1
data center developers active here
Map

Onondaga County and its neighbors

Counties shaded by data center MW on record, planned to operating. 4 of its 4 neighboring counties have pages of their own. The rest are in the member database.

Oswego no data centers Onondaga 300 MW Cayuga no data centers Cortland no data centers Madison 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
75%

of the generation operating in the county is matched by data center MW on record: 300 MW of data centers against 397.7 MW of plants, with 587.3 MW more planned.

Data centers, planned to operating300 MW
Operating generation397.7 MW
Planned generation587.3 MW

Data centers by status

1 record, 300 MW

Planned300 MW1 record, 100%
Who owns each of the 1 records?Campus names, developers and contacts are for members.See what members get

The data center pipeline

None of the 1 record lists a year online or expected, so the pipeline is shown by developer only.

Figure 1

Who is building in Onondaga

Data center developers by MW on record. Top 1 of 1.

Ranalli Super DC LLC 300 MW 1 site
View as table
DeveloperSitesMW
Ranalli Super DC LLC1300
Members see all 1 developer, each campus they own here, and the people who run their site selection and energy procurement.
Source. FieldProspects database: ISO/RTO interconnection queues, EIA-860M and public data center filings, data as of October 8, 2026. Aggregates only. Campus names are for members.

Power generation in the county

40 plants operate inside Onondaga County, 397.7 MW. The queue adds 587.3 MW across 10 projects.

Figure 3

Operating and planned generation by technology

MW in Onondaga County

OperatingPlanned
Battery StorageOperating 11 MW 3 projects
Battery StoragePlanned 400 MW 2 projects
Natural GasOperating 225.3 MW 5 projects
WindPlanned 162 MW 1 project
SolarOperating 121.9 MW 31 projects
SolarPlanned 25.3 MW 7 projects
Municipal Solid WasteOperating 39.5 MW 1 project
View as table
TechnologyStatusProjectsMW
Battery StorageOperating311
Battery StoragePlanned2400
Natural GasOperating5225.3
WindPlanned1162
SolarOperating31121.9
SolarPlanned725.3
Municipal Solid WasteOperating139.5
Operating: 397.7 MW. Planned: 587.3 MW. Even if every planned project is built, county generation would reach 985 MW against 300 MW of data centers.
Source: ISO queues and EIA-860M, via FieldProspects
Figure 4

Planned generation by listed in-service year

MW. Years before 2026 are past due.

Past dueDue 2026 or later
0100200300400 Snapshot year 18 2026 7 2027 162 2028 2029 400 2030
View as table
YearPlanned projectsMW
2026518.3
202727
20281162
202900
20302400
No planned project is past its listed year

Onondaga County against its neighbors

None of the 4 neighboring counties with a page lists a data center record. Oswego County has the most operating generation among them, 6 GW.

CountyData center recordsData center MWOperating generation MWPlanned generation MWData center MW per MW operating
Onondaga County this page 1
300
398
587 0.75x
Oswego County 0
0
5,959
59 0x
Madison County 0
0
118
424 0x
Cortland County 0
0
65
185 0x
Cayuga County 0
0
51
472 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.

5 counties shown

What changed since June 4, 2026

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

Open the change feed
3
added to a queue, 405 MW
0
came online, started construction or signed an interconnection agreement, 0 MW
5
cancelled, dropped or went inactive, 1.4 GW
5
slipped their in-service date, 15.3 MW

Every change in Onondaga County

Project, what changed, technology, MW and the dates that moved, for all 13 changes.

Members only
County: Onondaga County, NYSince June 4, 2026 13 changes
ProjectChangeTechnologyMWPrevious dateNew date
13 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 Onondaga County

Campus or project name, developer, status, MW, year and the developer’s contacts, for all 51 records. Filter, sort and export to Excel.

Members only
County: Onondaga County, NYStatus: all except cancelledSort: MW, largest first 51 records
Project or campusDeveloperStatusMWYearContacts
51 records and 1.3 GW behind this preview

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