BROWN (345 KV)
SubstationIllinois · SOUTHERN INDIANA GAS & ELEC CO
BROWN (345 KV) is an electric transmission substation in Illinois, operated by SOUTHERN INDIANA GAS & ELEC CO. It is classified as high-voltage (345 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 & 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 |
|---|---|---|---|---|
| #2686 | 345 kV | SOUTHERN INDIANA GAS & ELEC CO | IN SERVICE | 26.0 mi |
| #48733 | 345 kV | — | IN SERVICE | 38.0 mi |
| #19599 | 138 kV | SOUTHERN INDIANA GAS & ELEC CO | IN SERVICE | 0.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of BROWN (345 KV), 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 |
|---|---|---|---|---|---|---|---|
| A B Brown | Brownfield | IN | Posey | — | 530 MW | — | 74.4 |
| UNKNOWN127880 | Substation-Adjacent | IN | Vanderburgh County | 138 kV | 100 MW | 4.6 yrs | 73.2 |
| NORTHEAST | Substation-Adjacent | IN | Vanderburgh County | 138 kV | 100 MW | 4.6 yrs | 72.8 |
| BROWN (345 KV) | Substation-Adjacent | IN | Posey County | 345 kV | 600 MW | 4.6 yrs | 72.4 |
| UNKNOWN127557 | Substation-Adjacent | IN | Vanderburgh County | 138 kV | 100 MW | 4.6 yrs | 71.8 |
| PIGEON CREEK TRANS | Substation-Adjacent | IN | Vanderburgh County | 138 kV | 100 MW | 4.6 yrs | 71.4 |
| UNKNOWN127569 | Substation-Adjacent | IN | Vanderburgh County | 138 kV | 100 MW | 4.6 yrs | 71.4 |
| FRANCISCO | Substation-Adjacent | IN | Gibson County | 345 kV | 600 MW | 4.6 yrs | 71.2 |
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 BROWN (345 KV) substation, Illinois. 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.