COUNTY LINE
SubstationIndiana · INDIANA MICHIGAN POWER CO
COUNTY LINE is an electric transmission substation in Indiana, operated by INDIANA MICHIGAN POWER CO. It is classified as sub-transmission (138 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #15219 | 138 kV | INDIANA MICHIGAN POWER CO | IN SERVICE | 7.4 mi |
| #15220 | 138 kV | INDIANA MICHIGAN POWER CO | IN SERVICE | 8.4 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of COUNTY LINE, 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 |
|---|---|---|---|---|---|---|---|
| SORENSON | Substation-Adjacent | IN | Huntington County | 765 kV | 1,000 MW | 3.0 yrs | 74.2 |
| R.P.MONE | Substation-Adjacent | OH | Van Wert County | 345 kV | 600 MW | 3.2 yrs | 73.9 |
| SOUTH BUTLER | Substation-Adjacent | IN | DeKalb County | 345 kV | 600 MW | 3.0 yrs | 73.8 |
| R.P.MONE | Substation-Adjacent | IN | Allen County | 345 kV | 600 MW | 3.0 yrs | 73.8 |
| ILLINOIS ROAD | Substation-Adjacent | IN | Allen County | 345 kV | 600 MW | 3.0 yrs | 72.1 |
| COLLINGWOOD | Substation-Adjacent | IN | Noble County | 345 kV | 600 MW | 3.0 yrs | 71.6 |
| UNKNOWN123161 | Substation-Adjacent | IN | Allen County | 138 kV | 100 MW | 3.0 yrs | 69.1 |
| UNKNOWN122670 | Substation-Adjacent | IN | Allen County | 138 kV | 100 MW | 3.0 yrs | 69.0 |
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 COUNTY LINE substation, Indiana. 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.