TAP140743
SubstationMassachusetts · WESTERN MASSACHUSETTS ELEC CO
At a glance
TAP140743 is an electric transmission substation in Massachusetts, on WESTERN MASSACHUSETTS ELEC CO's transmission network. It is classified as distribution (69–115 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
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 |
|---|---|---|---|---|
| #102195 | 69 kV | WESTERN MASSACHUSETTS ELEC CO | IN SERVICE | 7.5 mi |
| #107255 | 69 kV | WESTERN MASSACHUSETTS ELECTRIC COMPANY | IN SERVICE | 0.1 mi |
| #117885 | 69 kV | WESTERN MASSACHUSETTS ELEC CO | IN SERVICE | 29.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP140743, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN133485 | Substation-Adjacent | MA | Hampden County | 345 kV | 600 MW | 4.3 yrs | 68.5 |
| AGAWAM | Substation-Adjacent | MA | Hampden County | 345 kV | 600 MW | 4.3 yrs | 66.2 |
| LUDLOW | Substation-Adjacent | MA | Hampden County | 345 kV | 600 MW | 4.3 yrs | 64.6 |
| CARPENTER HILL | Substation-Adjacent | MA | Worcester County | 345 kV | 600 MW | 4.3 yrs | 64.4 |
| SCITICO | Substation-Adjacent | CT | Capitol Planning Region | 115 kV | 100 MW | 4.3 yrs | 61.8 |
| WINDSOR LOCKS | Substation-Adjacent | CT | Capitol Planning Region | 115 kV | 100 MW | 4.3 yrs | 61.7 |
| Indian Orchard Solar Facility | Brownfield | MA | Hampden | — | 2 MW | 4.3 yrs | 61.6 |
| TAP173620 | Substation-Adjacent | CT | Capitol Planning Region | 115 kV | 100 MW | 4.3 yrs | 61.6 |
Who owns the transmission lines at TAP140743?
The 3 connected lines listed above are owned by WESTERN MASSACHUSETTS ELEC CO, WESTERN MASSACHUSETTS ELECTRIC COMPANY. Line voltages range from 69 kV to 69 kV. Their combined recorded length is about 36.6 miles.
How do candidate sites near TAP140743 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 Hampden County, Worcester County, Capitol Planning Region, Hampden. The Massachusetts average across 1,861 scored sites is 54.2. 305 of those Massachusetts sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP140743 substation?
TAP140743 has a maximum voltage of 69 kV. That places it in the 69–114 kV band. The median named US substation in this dataset is 115 kV, so TAP140743 is below the national midpoint.
How many transmission lines connect to TAP140743 substation?
3 transmission lines terminate at or pass through TAP140743 in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 36.6 miles.
Who owns TAP140743 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP140743 belong to WESTERN MASSACHUSETTS ELEC CO, and others to WESTERN MASSACHUSETTS ELECTRIC COMPANY. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP140743 substation located?
TAP140743 is in Massachusetts at 42.2813, -72.3554. The datacenter candidate sites closest to it are in Hampden County, Worcester County, Capitol Planning Region.
Are there datacenter candidate sites near TAP140743 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP140743. The highest-scoring is UNKNOWN133485 at 69/100. Across Massachusetts, the average DC Readiness score is 54.2.
More in Massachusetts
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, “TAP140743 substation, Massachusetts”, https://gridcensus.com/substations/massachusetts/tap140743-ae0d1bd3 (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 TAP140743 substation, Massachusetts 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.