ELM ST
SubstationNew York · NIAGARA MOHAWK POWER CORP.
At a glance
ELM ST is an electric transmission substation in New York, on NIAGARA MOHAWK POWER CORP.'s transmission network. It is classified as high-voltage (230 kv) and connects 2 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #164853 | 230 kV | NIAGARA MOHAWK POWER CORP. | IN SERVICE | 2.9 mi |
| #165718 | 230 kV | NIAGARA MOHAWK POWER CORP. | IN SERVICE | 7.8 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of ELM ST, 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 |
|---|---|---|---|---|---|---|---|
| ELM ST | Substation-Adjacent | NY | Erie County | 230 kV | 300 MW | 4.3 yrs | 65.1 |
| SENECA TERMINAL | Substation-Adjacent | NY | Erie County | 230 kV | 300 MW | 4.3 yrs | 65.0 |
| Tonawanda Landfill (Wales Avenue) | Brownfield | NY | Erie | — | 1 MW | 4.3 yrs | 64.8 |
| STOLLE ROAD | Substation-Adjacent | NY | Erie County | 345 kV | 600 MW | 4.3 yrs | 64.8 |
| TAP139843 | Substation-Adjacent | NY | Erie County | 230 kV | 300 MW | 4.3 yrs | 64.6 |
| GARDENVILLE | Substation-Adjacent | NY | Erie County | 230 kV | 300 MW | 4.3 yrs | 64.0 |
| HUNTLEY | Substation-Adjacent | NY | Erie County | 230 kV | 300 MW | 4.3 yrs | 63.9 |
| SAWYER AVE | Substation-Adjacent | NY | Erie County | 230 kV | 300 MW | 4.3 yrs | 63.9 |
How does ELM ST 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. 26 named substations in the state are in ELM ST's 230–344 kV band (5% of named stations). 56 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 ELM ST?
The 2 connected lines listed above are owned by NIAGARA MOHAWK POWER CORP. Line voltages range from 230 kV to 230 kV. Their combined recorded length is about 10.7 miles.
How do candidate sites near ELM ST score?
The 8 highest-scoring candidate sites within about 25 miles range from 64 to 65 on the 0–100 DC Readiness scale. They fall in Erie County, Erie. 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 ELM ST substation?
ELM ST has a maximum voltage of 230 kV. That places it in the 230–344 kV band. The median named US substation in this dataset is 115 kV, so ELM ST is above the national midpoint.
How many transmission lines connect to ELM ST substation?
2 transmission lines terminate at or pass through ELM ST in the HIFLD line data. The connected lines listed here run at 230 kV. Together the listed lines cover about 10.7 miles.
Who owns ELM ST substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at ELM ST belong to NIAGARA MOHAWK POWER CORP. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is ELM ST substation located?
ELM ST is in New York at 42.8839, -78.8691. The datacenter candidate sites closest to it are in Erie County, Erie.
Are there datacenter candidate sites near ELM ST substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of ELM ST. The highest-scoring is ELM ST at 65/100. Across New York, the average DC Readiness score is 54.
Other 230 kV substations in New York
- NEW GARDENVILLE· 21 lines
- PACKARD· 21 lines
- GARDENVILLE· 18 lines
- MOSES· 16 lines
- PORTER· 16 lines
- ROTTERDAM· 16 lines
- HUNTLEY· 15 lines
- DUNKIRK· 14 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, “ELM ST substation, New York”, https://gridcensus.com/substations/new-york/elm-st-25405fee (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 ELM ST 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.