SMITHFIELD
SubstationNew York · CENTRAL HUDSON GAS & ELEC CORP
At a glance
SMITHFIELD is an electric transmission substation in New York, on CENTRAL HUDSON GAS & ELEC CORP's transmission network. It is classified as sub-transmission (115 kv) and connects 5 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 |
|---|---|---|---|---|
| #100517 | 115 kV | — | IN SERVICE | 4.7 mi |
| #105149 | 115 kV | — | IN SERVICE | 6.5 mi |
| #136376 | 115 kV | CENTRAL HUDSON GAS & ELEC CORP | IN SERVICE | 11.5 mi |
| #130262 | — | CENTRAL HUDSON GAS & ELEC CORP | IN SERVICE | 5.6 mi |
| #130294 | — | CENTRAL HUDSON GAS & ELEC CORP | IN SERVICE | 4.9 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SMITHFIELD, 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 |
|---|---|---|---|---|---|---|---|
| LONG MOUNTAIN | Substation-Adjacent | CT | Dutchess County | 345 kV | 600 MW | 4.3 yrs | 66.8 |
| UNKNOWN129085 | Substation-Adjacent | NY | Putnam County | 345 kV | 600 MW | 4.3 yrs | 66.4 |
| E. FISHKILL | Substation-Adjacent | NY | Putnam County | 345 kV | 600 MW | 4.3 yrs | 66.4 |
| DANSKAMMER | Substation-Adjacent | NY | Putnam County | 345 kV | 600 MW | 4.3 yrs | 66.4 |
| ROSETON | Substation-Adjacent | NY | Putnam County | 345 kV | 600 MW | 4.3 yrs | 66.3 |
| UNKNOWN129084 | Substation-Adjacent | NY | Dutchess County | 345 kV | 600 MW | 4.3 yrs | 65.0 |
| ATHENS | Substation-Adjacent | NY | Columbia County | 345 kV | 600 MW | 4.3 yrs | 62.7 |
| Dennings Point Landfill Solar | Brownfield | NY | Dutchess | — | 2 MW | 4.3 yrs | 62.3 |
How does SMITHFIELD compare with other substations in New York?
New York has 2,777 substation records in HIFLD, of which 570 carry a station name; the rest are unnamed tap points, risers and line ends. 261 named substations in the state are in SMITHFIELD's 115–229 kV band (46% of named stations). 82 sit in a higher band. 56 named substations in New York operate at 345 kV or above. The highest voltage recorded in the state is 765 kV, and the state median is 115 kV.
Who owns the transmission lines at SMITHFIELD?
The 5 connected lines listed above are owned by CENTRAL HUDSON GAS & ELEC CORP. Line voltages range from 115 kV to 115 kV. Their combined recorded length is about 33.2 miles.
How do candidate sites near SMITHFIELD score?
The 8 highest-scoring candidate sites within about 25 miles range from 62 to 67 on the 0–100 DC Readiness scale. They fall in Dutchess County, Putnam County, Columbia County, Dutchess. The New York average across 2,980 scored sites is 54. 844 of those New York sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is SMITHFIELD substation?
SMITHFIELD has a maximum voltage of 115 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so SMITHFIELD is at the national midpoint.
How many transmission lines connect to SMITHFIELD substation?
5 transmission lines terminate at or pass through SMITHFIELD in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 33.2 miles.
Who owns SMITHFIELD substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at SMITHFIELD belong to CENTRAL HUDSON GAS & ELEC CORP. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is SMITHFIELD substation located?
SMITHFIELD is in New York at 41.8985, -73.5833. The datacenter candidate sites closest to it are in Dutchess County, Putnam County, Columbia County.
Are there datacenter candidate sites near SMITHFIELD substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of SMITHFIELD. The highest-scoring is LONG MOUNTAIN at 67/100. Across New York, the average DC Readiness score is 54.
Other 115 kV substations in New York
- MORTIMER· 16 lines
- LOCKPORT· 15 lines
- WESTOVER· 13 lines
- TEAL· 12 lines
- GREENBUSH· 11 lines
- SPIER FALLS· 11 lines
- ALCOA MASSENA OPERATIONS - WEST PLANT· 10 lines
- MOHICAN· 9 lines
- All named substations in New York· 570 stations
- Datacenter candidate sites in New York· 2,980 sites
- Brownfield and retired plant sites in New York
- 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, “SMITHFIELD substation, New York”, https://gridcensus.com/substations/new-york/smithfield-d675ebb6 (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 SMITHFIELD substation, New York 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.