MILLBURY NO. 3
SubstationMassachusetts · FITCHBURG GAS AND ELECTRIC LIGHT COMPANY
MILLBURY NO. 3 is an electric transmission substation in Massachusetts, operated by FITCHBURG GAS AND ELECTRIC LIGHT COMPANY. It is classified as high-voltage (345 kv) and connects 4 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 & operation
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #198 | 345 kV | FITCHBURG GAS AND ELECTRIC LIGHT COMPANY | IN SERVICE | 12.7 mi |
| #35400 | 345 kV | FITCHBURG GAS AND ELECTRIC LIGHT COMPANY | IN SERVICE | 16.2 mi |
| #36351 | 345 kV | FITCHBURG GAS AND ELECTRIC LIGHT COMPANY | IN SERVICE | 16.1 mi |
| #36546 | 345 kV | FITCHBURG GAS AND ELECTRIC LIGHT COMPANY | IN SERVICE | 12.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of MILLBURY NO. 3, 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 |
|---|---|---|---|---|---|---|---|
| ANP BLACKSTONE ENERGY PROJECT | Substation-Adjacent | RI | Providence County | 345 kV | 600 MW | 3.5 yrs | 72.9 |
| ANP BELLINGHAM ENERGY PROJECT | Substation-Adjacent | MA | Norfolk County | 345 kV | 600 MW | 3.5 yrs | 72.9 |
| MILLBURY NO. 3 | Substation-Adjacent | MA | Worcester County | 345 kV | 600 MW | 3.5 yrs | 72.3 |
| OCEAN STATE | Substation-Adjacent | RI | Providence County | 345 kV | 600 MW | 3.5 yrs | 72.3 |
| UNKNOWN133682 | Substation-Adjacent | MA | Middlesex County | 450 kV | 600 MW | 3.5 yrs | 71.8 |
| WALTHAM | Substation-Adjacent | MA | Middlesex County | 230 kV | 300 MW | 3.5 yrs | 70.9 |
| BELLINGHAM COGENERATION FACILITY | Substation-Adjacent | RI | Providence County | 345 kV | 600 MW | 3.5 yrs | 70.6 |
| ANP BELLINGHAM ENERGY PROJECT | Substation-Adjacent | MA | Norfolk County | 345 kV | 600 MW | 3.5 yrs | 69.8 |
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 MILLBURY NO. 3 substation, Massachusetts. 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.