ARSENE
SubstationMassachusetts · NSTAR ELECTRIC COMPANY
At a glance
ARSENE is an electric transmission substation in Massachusetts, on NSTAR ELECTRIC COMPANY's transmission network. It is classified as sub-transmission (115 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
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 |
|---|---|---|---|---|
| #121146 | 115 kV | NSTAR ELECTRIC COMPANY | IN SERVICE | 4.1 mi |
| #172648 | — | NSTAR ELECTRIC COMPANY | IN SERVICE | 4.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of ARSENE, 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 |
|---|---|---|---|---|---|---|---|
| BRIDGEWATER | Substation-Adjacent | MA | Plymouth County | 345 kV | 600 MW | 4.3 yrs | 65.6 |
| CARVER | Substation-Adjacent | MA | Plymouth County | 345 kV | 600 MW | 4.3 yrs | 63.8 |
| FALL RIVER | Substation-Adjacent | MA | Bristol County | 345 kV | 600 MW | 4.3 yrs | 63.7 |
| UNKNOWN133429 | Substation-Adjacent | MA | Plymouth County | 345 kV | 600 MW | 4.3 yrs | 63.6 |
| UNKNOWN133428 | Substation-Adjacent | MA | Plymouth County | 345 kV | 600 MW | 4.3 yrs | 63.6 |
| UNKNOWN133427 | Substation-Adjacent | MA | Plymouth County | 345 kV | 600 MW | 4.3 yrs | 63.4 |
| CANAL | Substation-Adjacent | MA | Barnstable County | 345 kV | 600 MW | 4.3 yrs | 63.1 |
| TAP135424 | Substation-Adjacent | MA | Plymouth County | 345 kV | 600 MW | 4.3 yrs | 62.2 |
How does ARSENE compare with other substations in Massachusetts?
Massachusetts has 612 substation records in HIFLD, of which 229 carry a station name; the rest are unnamed tap points, risers and line ends. 144 named substations in the state are in ARSENE's 115–229 kV band (63% of named stations). 39 sit in a higher band. 31 named substations in Massachusetts operate at 345 kV or above. The highest voltage recorded in the state is 345 kV, and the state median is 115 kV.
Who owns the transmission lines at ARSENE?
The 2 connected lines listed above are owned by NSTAR ELECTRIC COMPANY. Line voltages range from 115 kV to 115 kV. Their combined recorded length is about 8.1 miles.
How do candidate sites near ARSENE score?
The 8 highest-scoring candidate sites within about 25 miles range from 62 to 66 on the 0–100 DC Readiness scale. They fall in Plymouth County, Bristol County, Barnstable County. 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 ARSENE substation?
ARSENE 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 ARSENE is at the national midpoint.
How many transmission lines connect to ARSENE substation?
2 transmission lines terminate at or pass through ARSENE in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 8.1 miles.
Who owns ARSENE substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at ARSENE belong to NSTAR ELECTRIC COMPANY. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is ARSENE substation located?
ARSENE is in Massachusetts at 41.6399, -70.8752. The datacenter candidate sites closest to it are in Plymouth County, Bristol County, Barnstable County.
Are there datacenter candidate sites near ARSENE substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of ARSENE. The highest-scoring is BRIDGEWATER at 66/100. Across Massachusetts, the average DC Readiness score is 54.2.
Other 115 kV substations in Massachusetts
- MILLBURY NO.2· 13 lines
- SOMERSET· 10 lines
- DOREEN· 8 lines
- BAKER STREET· 7 lines
- BRIGHTON· 7 lines
- FITCHBURG· 7 lines
- AYER· 6 lines
- BLACKSTONE JUNCTION· 6 lines
- All named substations in Massachusetts· 229 stations
- Datacenter candidate sites in Massachusetts· 1,861 sites
- Brownfield and retired plant sites in Massachusetts
- 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, “ARSENE substation, Massachusetts”, https://gridcensus.com/substations/massachusetts/arsene-24b7b712 (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 ARSENE 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.