TAP166948
SubstationNew York · NIAGARA MOHAWK POWER CORP.
At a glance
TAP166948 is an electric transmission substation in New York, operated by NIAGARA MOHAWK POWER CORP.. It is classified as sub-transmission (115 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #167795 | 115 kV | NIAGARA MOHAWK POWER CORP. | IN SERVICE | 3.8 mi |
| #168141 | 115 kV | NIAGARA MOHAWK POWER CORP. | IN SERVICE | 1.1 mi |
| #174838 | 115 kV | NIAGARA MOHAWK POWER CORP. | IN SERVICE | 0.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP166948, 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 |
| 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 |
| SOMERSET | Substation-Adjacent | NY | Niagara County | 345 kV | 600 MW | 4.3 yrs | 63.7 |
Who owns the transmission lines at TAP166948?
The 3 connected lines listed above are owned by NIAGARA MOHAWK POWER CORP. Line voltages range from 115 kV to 115 kV. Their combined recorded length is about 5 miles.
How do candidate sites near TAP166948 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, Niagara County. 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 TAP166948 substation?
TAP166948 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 TAP166948 is at the national midpoint.
How many transmission lines connect to TAP166948 substation?
3 transmission lines terminate at or pass through TAP166948 in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 5 miles.
Who owns TAP166948 substation?
HIFLD lists NIAGARA MOHAWK POWER CORP. as the operator of TAP166948.
Where is TAP166948 substation located?
TAP166948 is in New York at 43.1162, -79.0063. The datacenter candidate sites closest to it are in Erie County, Erie, Niagara County.
Are there datacenter candidate sites near TAP166948 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP166948. The highest-scoring is ELM ST at 65/100. Across New York, the average DC Readiness score is 54.
More in New York
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, “TAP166948 substation, New York”, https://gridcensus.com/substations/new-york/tap166948-c01dfdb5 (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 TAP166948 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.