Datacenter Sites in Union County, New Jersey

Union County has 82 scored datacenter candidate sites averaging 57.1/100 DC Readiness, with a catalogued aggregate of 4,613 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.

At a glance

Union County, New Jersey has 82 scored datacenter candidate sites averaging 57.1/100 DC Readiness, roughly in line with the New Jersey average of 55.2. It ranks 5th of 21 New Jersey counties by number of sites and 5th by average score. The top-scoring site is BAYWAY at 66.9/100.

82

Candidate sites

57.1/100

Avg DC Readiness

4,613 MW

Catalogued capacity

theoretical aggregate

Relatively Moderate

Hazard rating

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≥ 7560–7540–60≤ 40

Top 25 in Union County

Site-selection context for Union County

Yessales_tax_exemption

Datacenter tax incentive

9.78¢/kWh

Commercial electricity

7.18¢/kWh

Industrial electricity

Fiber providers

Low

Water stress

$105,823

Land price / acre

1,000

Cooling degree days

4,900

Heating degree days

53°F

Mean annual temp

Incentive detail: UEZ sales tax exemption (reduced rate); BEIP/Grow NJ incentives for job creation.

How does Union County compare with other counties in New Jersey?

By number of scored sites, Union County ranks 5th of the 21 New Jersey counties with a county page, holding 7.8% of the state's 1,055 sites. Its average DC Readiness of 57.1/100 ranks 5th in the state and is roughly in line with the national average of 53.0. Nationally it has the 422nd-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 31 score 55 or higher.

What types of datacenter sites are in Union County?

Industrial sites are the most common (49, 60% of the county's inventory), followed by substation-adjacent (15) and greenfield (11). Site type reflects how the parcel was identified — next to a substation, on a former mine or brownfield, on industrial or federal excess land — and is scored on the same 14 factors either way.

What are power cost, hazard, water and fiber conditions in Union County?

Industrial electricity averages 7.18¢/kWh and commercial 9.78¢/kWh. FEMA's National Risk Index rates the county "Relatively Moderate" (28). WRI water stress is low. 7 fiber providers report service in the county. The climate runs 1,000 cooling degree days a year with a mean temperature of 53°F. Land is valued around $105,823 an acre.

By site type

Top datacenter sites in Union County

Top datacenter sites in Union County
Site	Type	Voltage	Capacity	Queue wait	Score
BAYWAY	Substation-Adjacent	345 kV	600 MW	2.7 yrs	66.9
Jersey Gardens Mall Solar #1	Brownfield	—	2 MW	2.7 yrs	66.1
LAFAYETTE ROAD STATION	Substation-Adjacent	230 kV	300 MW	2.7 yrs	65.1
UNKNOWN133139	Substation-Adjacent	230 kV	300 MW	2.7 yrs	65.1
UNKNOWN133141	Substation-Adjacent	230 kV	300 MW	2.7 yrs	65.0
WOODBRIDGE	Substation-Adjacent	230 kV	300 MW	2.7 yrs	64.9
ALDENE	Substation-Adjacent	230 kV	300 MW	2.7 yrs	64.7
Linden Solar Farm	Brownfield	—	3 MW	2.7 yrs	64.6
UNKNOWN132617	Substation-Adjacent	230 kV	300 MW	2.7 yrs	64.6
Drew University (GSHP)	Brownfield	—	—	2.7 yrs	64.3
NEW DOVER	Substation-Adjacent	230 kV	300 MW	2.7 yrs	64.0
FANWOOD	Substation-Adjacent	230 kV	300 MW	2.7 yrs	63.9
STANLEY TERRACE	Substation-Adjacent	230 kV	300 MW	2.7 yrs	63.9
SUMMIT	Substation-Adjacent	230 kV	300 MW	2.7 yrs	63.8
TRAYNOR	Substation-Adjacent	230 kV	300 MW	2.7 yrs	63.8
GILLETTE	Substation-Adjacent	230 kV	300 MW	2.7 yrs	63.7
Injectron Corporation Solar	Brownfield	—	1 MW	2.7 yrs	63.4
EC Near PSEG Linden Generating Station	Greenfield	—	—	2.7 yrs	63.3
TAP140866	Substation-Adjacent	230 kV	300 MW	2.7 yrs	63.1
OZ Union	Greenfield	—	—	2.7 yrs	62.2
Merck Rahway Power Plant	Brownfield	—	4 MW	2.7 yrs	60.6
EC Near PSEG Linden Generating Station	Greenfield	—	—	2.7 yrs	60.2
DOREMUS PLACE	Substation-Adjacent	138 kV	100 MW	2.7 yrs	60.2
EC Near Merck Rahway Power Plant	Greenfield	—	—	2.7 yrs	59.9
OZ Union	Greenfield	—	—	2.7 yrs	59.4

Every scored site in Union County

All 82 sites, best first.

BAYWAY · 66.9
Jersey Gardens Mall Solar #1 · 66.1
Substation-Adjacent site · ff7d23dc · 65.1
LAFAYETTE ROAD STATION · 65.1
Substation-Adjacent site · cd8302db · 65.0
WOODBRIDGE · 64.9
ALDENE · 64.7
Substation-Adjacent site · 8d5baf33 · 64.6
Linden Solar Farm · 64.6
Drew University (GSHP) · 64.3
NEW DOVER · 64.0
FANWOOD · 63.9
STANLEY TERRACE · 63.9
SUMMIT · 63.8
TRAYNOR · 63.8
GILLETTE · 63.7
Injectron Corporation Solar · 63.4
EC Near PSEG Linden Generating Station · c6f8b86a · 63.3
Substation-Adjacent site · 19478aaa · 63.1
OZ Union · 3428f219 · 62.2
Merck Rahway Power Plant · 60.6
DOREMUS PLACE · 60.2
EC Near PSEG Linden Generating Station · 2991166f · 60.2
EC Near Merck Rahway Power Plant · 59.9
OZ Union · 9813754c · 59.4
EC Near PSEG Linden Generating Station · d9473242 · 57.7
OZ Union · 035cd56b · 57.6
Overlook Medical Center · 57.4
EC Near Overlook Medical Center · c5e9ff35 · 57.0
EC Near Overlook Medical Center · 78ecfaa7 · 56.6
EC Near Overlook Medical Center · f917062c · 56.2
200 South Second St. · 54.7
Exact Anodizing · 54.7
Johnson Machinery · 54.7
Iron Oxide Site · 54.7
FORMER EXACT ANODIZING COMPANY · 54.7
American Chrome · 54.7
Kull Property · 54.7
Livingston Street Property · 54.7
EC Near Overlook Medical Center · cb4d1810 · 54.6
UNITED PAINT & VARNISH, CO. · 54.6
Former Police Firing Range · 54.6
OEM Property (Former 1201 Frank Street) · 54.5
Agf · 53.9
Lee Place · 53.9
Grimmauld Place · 53.8
Fourth & Cleveland Parking Lot - Lot 15 · 53.8
Plainfield Bilingual Daycare Center · 53.8
Fourth & Cleveland Parking Lot - Lot 16 · 53.8
Parking Lot No. 10 · 53.8
Superior Poly Bags · 53.8
PLAINFIELD SITE NO. P-3 · 53.8
E. 2nd Street Parking Lot · 53.8
North Avenue/Gavett Place · 53.8
South 2nd Street #2 · 53.8
South 2nd Street #1 · 53.8
Parking Lot No.9 · 53.8
Gavett Place Lot 5 Former Service Station · 53.8
Marina Village Project · 53.8
Gavett Place Lot 1 · 53.8
South 2nd Street #3 · 53.8
PLAINFIELD-P2-PARKING LOT NO. 8&8A · 53.8
South 2nd Street #4 · 53.8
South 2nd Street #5A · 53.8
MUNICIPAL PARKING LOT NO. 7 · 53.8
Westport Homes Project · 53.8
Nj Transit Bus Garage · 53.8
EMCO Graphics · 53.8
PLAINFIELD SITE NO. P-4 · 53.8
Coachworks Property · 53.8
Disco Aluminum 524-532 South Avenue · 53.7
PARKING LOT 1 · 53.7
Disco Aluminum Lot 8 · 53.7
South 2nd Street #5B · 53.7
Park Madison · 53.7
Disco Aluminum 535 East 6th Street · 53.7
Disco Aluminum 539 East 6th Street · 53.7
Disco Aluminum · 53.7
Disco Aluminum 529 East 6th Street · 53.7
Roy Stange Site · 53.6
Leland Ave. Assemblage · 53.6
NEWARK RW-22L MALSR/ALS · 28541198 · 53.5

Union County datacenter FAQ

How many datacenter sites are in Union County?

82 scored datacenter candidate sites, averaging 57.1/100 DC Readiness. That is the 5th-most of 21 New Jersey counties with five or more sites.

What is the highest-scoring datacenter site in Union County?

BAYWAY scores 66.9/100 DC Readiness, the highest of the 82 scored sites in Union County (a substation-adjacent site).

Does Union County offer datacenter tax incentives?

UEZ sales tax exemption (reduced rate); BEIP/Grow NJ incentives for job creation.

What is the natural-hazard risk in Union County?

FEMA's National Risk Index rates Union County as "Relatively Moderate" (score 28).

What are industrial electricity rates in Union County?

Average industrial electricity is 7.18¢/kWh and commercial is 9.78¢/kWh in Union County.

About this data

Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: GridCensus, “Datacenter candidate sites in Union County, New Jersey”, https://gridcensus.com/datacenter-sites/new-jersey/union-county (data as of November 12, 2026).

Dataset updated November 2026. Screening estimates derived from public data sources.

Go deeper than the public screen

Every site and score for Union County, New Jersey is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.

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