SOUTHINGTON
SubstationNew York · CONNECTICUT LIGHT & POWER CO
SOUTHINGTON is an electric transmission substation in New York, operated by CONNECTICUT LIGHT & POWER CO. It is classified as high-voltage (345 kv) and connects 14 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 |
|---|---|---|---|---|
| #23815 | 345 kV | CONNECTICUT LIGHT & POWER CO | IN SERVICE | 12.8 mi |
| #6905 | 345 kV | CONNECTICUT LIGHT & POWER CO | IN SERVICE | 12.0 mi |
| #3878 | 345 kV | CONNECTICUT LIGHT & POWER CO | IN SERVICE | 19.4 mi |
| #10819 | 115 kV | CONNECTICUT LIGHT & POWER CO | IN SERVICE | 18.3 mi |
| #10965 | 115 kV | CONNECTICUT LIGHT & POWER CO | IN SERVICE | 6.2 mi |
| #10979 | 115 kV | CONNECTICUT LIGHT & POWER CO | IN SERVICE | 6.0 mi |
| #10984 | 115 kV | CONNECTICUT LIGHT & POWER CO | IN SERVICE | 6.4 mi |
| #10985 | 115 kV | CONNECTICUT LIGHT & POWER CO | IN SERVICE | 6.6 mi |
| #10987 | 115 kV | CONNECTICUT LIGHT & POWER CO | IN SERVICE | 4.7 mi |
| #23073 | 115 kV | CONNECTICUT LIGHT & POWER CO | IN SERVICE | 5.4 mi |
| #49860 | 115 kV | CONNECTICUT LIGHT & POWER CO | IN SERVICE | 6.4 mi |
| #51073 | 115 kV | CONNECTICUT LIGHT & POWER CO | IN SERVICE | 10.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SOUTHINGTON, 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 |
|---|---|---|---|---|---|---|---|
| FROST BRIDGE | Substation-Adjacent | CT | Naugatuck Valley Planning Region | 345 kV | 600 MW | 3.5 yrs | 70.0 |
| NO. WALL | Substation-Adjacent | CT | South Central Connecticut Planning Region | 345 kV | 600 MW | 3.5 yrs | 70.0 |
| BRIDGEPORT RESCO | Substation-Adjacent | CT | Greater Bridgeport Planning Region | 345 kV | 600 MW | 3.5 yrs | 69.7 |
| UNKNOWN133278 | Substation-Adjacent | CT | South Central Connecticut Planning Region | 345 kV | 600 MW | 3.5 yrs | 69.4 |
| MANCHESTER | Substation-Adjacent | CT | Capitol Planning Region | 345 kV | 600 MW | 3.5 yrs | 69.1 |
| TAP136499 | Substation-Adjacent | CT | Capitol Planning Region | 345 kV | 600 MW | 3.5 yrs | 67.6 |
| NORTH BLOOMFIELD | Substation-Adjacent | CT | Capitol Planning Region | 345 kV | 600 MW | 3.5 yrs | 67.6 |
| BRIDGEPORT HARBOR | Substation-Adjacent | CT | Greater Bridgeport Planning Region | 345 kV | 600 MW | 3.5 yrs | 66.8 |
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
This page shows a public slice of the GridCensus dataset for SOUTHINGTON substation, New York. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.