UNIOIN STATION
SubstationNew Jersey · ATLANTIC CITY ELECTRIC CO
At a glance
UNIOIN STATION is an electric transmission substation in New Jersey, on ATLANTIC CITY ELECTRIC CO's transmission network. It is classified as sub-transmission (138 kv) and connects 3 transmission lines. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.
Voltage & classification
Ownership
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #158198 | 138 kV | ATLANTIC CITY ELECTRIC CO | IN SERVICE | 1.3 mi |
| #158199 | 138 kV | ATLANTIC CITY ELECTRIC CO | IN SERVICE | 5.2 mi |
| #158200 | 138 kV | ATLANTIC CITY ELECTRIC CO | IN SERVICE | 17.5 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of UNIOIN STATION, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| NEW FREEDOM | Substation-Adjacent | NJ | Camden County | 500 kV | 1,000 MW | 2.7 yrs | 66.7 |
| ORCHARD STATION | Substation-Adjacent | NJ | Salem County | 500 kV | 1,000 MW | 2.7 yrs | 63.4 |
| SICKLER | Substation-Adjacent | NJ | Camden County | 230 kV | 300 MW | 2.7 yrs | 62.3 |
| MONROE | Substation-Adjacent | NJ | Gloucester County | 230 kV | 300 MW | 2.7 yrs | 61.4 |
| EC Coal Gloucester County | Greenfield | NJ | Gloucester County | — | — | 2.7 yrs | 60.1 |
| Greenfield (EAST WINDSOR - NEW FREEDOM) | Greenfield | NJ | Camden County | 500 kV | 1,000 MW | 2.7 yrs | 59.3 |
| EC Coal Gloucester County | Greenfield | NJ | Gloucester County | — | — | 2.7 yrs | 59.1 |
| OZ Gloucester | Greenfield | NJ | Gloucester | — | — | 2.7 yrs | 58.8 |
How does UNIOIN STATION compare with other substations in New Jersey?
New Jersey has 487 substation records in HIFLD, of which 163 carry a station name; the rest are unnamed tap points, risers and line ends. 17 named substations in the state are in UNIOIN STATION's 115–229 kV band (10% of named stations). 109 sit in a higher band. 18 named substations in New Jersey operate at 345 kV or above. The highest voltage recorded in the state is 500 kV, and the state median is 230 kV.
Who owns the transmission lines at UNIOIN STATION?
The 3 connected lines listed above are owned by ATLANTIC CITY ELECTRIC CO. Line voltages range from 138 kV to 138 kV. Their combined recorded length is about 24 miles.
How do candidate sites near UNIOIN STATION score?
The 8 highest-scoring candidate sites within about 25 miles range from 59 to 67 on the 0–100 DC Readiness scale. They fall in Camden County, Salem County, Gloucester County, Gloucester. The New Jersey average across 1,055 scored sites is 55.2. 160 of those New Jersey sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is UNIOIN STATION substation?
UNIOIN STATION has a maximum voltage of 138 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so UNIOIN STATION is above the national midpoint.
How many transmission lines connect to UNIOIN STATION substation?
3 transmission lines terminate at or pass through UNIOIN STATION in the HIFLD line data. The connected lines listed here run at 138 kV. Together the listed lines cover about 24 miles.
Who owns UNIOIN STATION substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at UNIOIN STATION belong to ATLANTIC CITY ELECTRIC CO. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is UNIOIN STATION substation located?
UNIOIN STATION is in New Jersey at 39.3781, -74.9484. The datacenter candidate sites closest to it are in Camden County, Salem County, Gloucester County.
Are there datacenter candidate sites near UNIOIN STATION substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of UNIOIN STATION. The highest-scoring is NEW FREEDOM at 67/100. Across New Jersey, the average DC Readiness score is 55.2.
Other 138 kV substations in New Jersey
- CORSON STATION· 9 lines
- DEEPWATER· 9 lines
- LEWIS· 6 lines
- BL ENGLAND STATION· 5 lines
- EDISON· 5 lines
- MILL· 5 lines
- BUSTLETON· 4 lines
- LANDIS STATION· 4 lines
- All named substations in New Jersey· 163 stations
- Datacenter candidate sites in New Jersey· 1,055 sites
- Brownfield and retired plant sites in New Jersey
- Substations by state
About this data
Source: HIFLD Electric Substations and Transmission Lines (U.S. Department of Homeland Security), as published June 29, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “UNIOIN STATION substation, New Jersey”, https://gridcensus.com/substations/new-jersey/unioin-station-4e5ee551 (data as of June 29, 2026).
Dataset updated . Screening estimates derived from public data sources.
Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.
Go deeper than the public screen
Every site and score for UNIOIN STATION substation, 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.