FieldProspects

Mercer County, New Jersey

Mercer County, New Jersey has 119 MW of data centers on record, planned to operating, across 1 record, against 121.1 MW of generation operating inside the county. The queue adds 171.4 MW of planned generation across 2 projects. That is 14.7% of New Jersey's data center MW.

Data as of Grid region: PJM InterconnectionRefreshed monthly
119MW
data centers, planned to operating
1
data center records, not cancelled
14.7%
of New Jersey's data center MW
121.1MW
operating generation, 35 projects
171.4MW
planned generation, 2 projects
1
data center developers active here
Map

Mercer County and its neighbors

Counties shaded by data center MW on record, planned to operating. 5 of its 5 neighboring counties have pages of their own. The rest are in the member database.

Hunterdon 0 MW Somerset no data centers Middlesex 235.1 MW Burlington no data centers Mercer 119 MW Monmouth 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
98%

of the generation operating in the county is matched by data center MW on record: 119 MW of data centers against 121.1 MW of plants, with 171.4 MW more planned.

Data centers, planned to operating119 MW
Operating generation121.1 MW
Planned generation171.4 MW

Data centers by status

1 record, 119 MW

Operating119 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

1 record list a year online or expected, from 2014 to 2014. No record lists a year at or after the snapshot.

Figure 1

Data center MW by year online or expected

Records not cancelled, by listed year. 2026 onward is planned or under construction.

Through 20252026 and later
050100150 119 2014
View as table
YearRecordsMW
20141119
Source. FieldProspects database: ISO/RTO interconnection queues, EIA-860M and public data center filings, data as of October 8, 2026. 1 record with a year
Figure 2

Who is building in Mercer

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

QTS 119 MW 1 site
View as table
DeveloperSitesMW
QTS1119
Members see all 1 developer, each campus they own here, and the people who run their site selection and energy procurement.
Aggregates only. Campus names are for members.

Power generation in the county

35 plants operate inside Mercer County, 121.1 MW. The queue adds 171.4 MW across 2 projects.

Figure 3

Operating and planned generation by technology

MW in Mercer County

OperatingPlanned
Battery StorageOperating 1 MW 1 project
Battery StoragePlanned 170 MW 1 project
SolarOperating 77.3 MW 26 projects
SolarPlanned 1.4 MW 1 project
Natural GasOperating 41.6 MW 7 projects
OilOperating 1.2 MW 1 project
View as table
TechnologyStatusProjectsMW
Battery StorageOperating11
Battery StoragePlanned1170
SolarOperating2677.3
SolarPlanned11.4
Natural GasOperating741.6
OilOperating11.2
Operating: 121.1 MW. Planned: 171.4 MW. Even if every planned project is built, county generation would reach 292.5 MW against 119 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
050100150200 171 2027
View as table
YearPlanned projectsMW
20272171.4
No planned project is past its listed year

Mercer County against its neighbors

Middlesex County has the most data center MW among the neighbors, 235.1 MW, more than Mercer County. 5 of the 5 have more generation operating than data center MW on record.

CountyData center recordsData center MWOperating generation MWPlanned generation MWData center MW per MW operating
Middlesex County 5
235
3,067
16 0.08x
Mercer County this page 1
119
121
171 0.98x
Hunterdon County 1
0
614
40 0x
Burlington County 0
0
429
5 0x
Monmouth County 0
0
135
61 0x
Somerset County 0
0
67
3 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.

6 counties shown

What changed since June 4, 2026

1 project in Mercer County moved between the two snapshots. Counts and MW are below; the projects themselves are for members.

Open the change feed
1
added to a queue, 1.4 MW
0
came online, started construction or signed an interconnection agreement, 0 MW
0
cancelled, dropped or went inactive, 0 MW
0
slipped their in-service date, 0 MW

Every change in Mercer County

Project, what changed, technology, MW and the dates that moved, for all 1 change.

Members only
County: Mercer County, NJSince June 4, 2026 1 change
ProjectChangeTechnologyMWPrevious dateNew date
1 change 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 Mercer County

Campus or project name, developer, status, MW, year and the developer’s contacts, for all 38 records. Filter, sort and export to Excel.

Members only
County: Mercer County, NJStatus: all except cancelledSort: MW, largest first 38 records
Project or campusDeveloperStatusMWYearContacts
38 records and 411.5 MW behind this preview

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