TAP135932
SubstationNew York · LONG ISLAND POWER AUTHORITY
At a glance
TAP135932 is an electric transmission substation in New York, on LONG ISLAND POWER AUTHORITY's transmission network. It is classified as unclassified 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 |
|---|---|---|---|---|
| #108881 | — | LONG ISLAND POWER AUTHORITY | IN SERVICE | 5.6 mi |
| #109089 | — | LONG ISLAND POWER AUTHORITY | IN SERVICE | 0.5 mi |
| #114900 | — | LONG ISLAND POWER AUTHORITY | IN SERVICE | 9.5 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP135932, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN135915 | Substation-Adjacent | CT | Southeastern Connecticut Planning Region | 345 kV | 600 MW | 4.3 yrs | 68.6 |
| MONTVILLE | Substation-Adjacent | CT | Southeastern Connecticut Planning Region | 345 kV | 600 MW | 4.3 yrs | 68.4 |
| NO. WALL | Substation-Adjacent | CT | Lower Connecticut River Valley Planning Region | 345 kV | 600 MW | 4.3 yrs | 68.2 |
| HADDAM NECK | Substation-Adjacent | CT | Lower Connecticut River Valley Planning Region | 345 kV | 600 MW | 4.3 yrs | 66.1 |
| HADDAM | Substation-Adjacent | CT | Lower Connecticut River Valley Planning Region | 345 kV | 600 MW | 4.3 yrs | 65.9 |
| WILLIAMS ST | Substation-Adjacent | CT | Southeastern Connecticut Planning Region | 115 kV | 100 MW | 4.3 yrs | 63.4 |
| BUDDINGTON | Substation-Adjacent | CT | Southeastern Connecticut Planning Region | 115 kV | 100 MW | 4.3 yrs | 62.3 |
| TAP136504 | Substation-Adjacent | CT | Southeastern Connecticut Planning Region | 115 kV | 100 MW | 4.3 yrs | 62.2 |
Who owns the transmission lines at TAP135932?
The 3 connected lines listed above are owned by LONG ISLAND POWER AUTHORITY. Their combined recorded length is about 15.6 miles.
How do candidate sites near TAP135932 score?
The 8 highest-scoring candidate sites within about 25 miles range from 62 to 69 on the 0–100 DC Readiness scale. They fall in Southeastern Connecticut Planning Region, Lower Connecticut River Valley Planning Region. 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
How many transmission lines connect to TAP135932 substation?
3 transmission lines terminate at or pass through TAP135932 in the HIFLD line data. Together the listed lines cover about 15.6 miles.
Who owns TAP135932 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP135932 belong to LONG ISLAND POWER AUTHORITY. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP135932 substation located?
TAP135932 is in New York at 41.0988, -72.3902. The datacenter candidate sites closest to it are in Southeastern Connecticut Planning Region, Lower Connecticut River Valley Planning Region.
Are there datacenter candidate sites near TAP135932 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP135932. The highest-scoring is UNKNOWN135915 at 69/100. 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, “TAP135932 substation, New York”, https://gridcensus.com/substations/new-york/tap135932-6f2536b9 (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 TAP135932 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.