COOK
SubstationMichigan · AMERICAN ELECTRIC POWER CO., INC
COOK is an electric transmission substation in Michigan, operated by AMERICAN ELECTRIC POWER CO., INC. It is classified as extra-high-voltage (765 kv+) and connects 11 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 |
|---|---|---|---|---|
| #558 | 765 kV | INDIANA MICHIGAN POWER CO | IN SERVICE | 35.9 mi |
| #22707 | 345 kV | AMERICAN ELECTRIC POWER CO., INC | IN SERVICE | 0.3 mi |
| #25761 | 345 kV | AMERICAN ELECTRIC POWER CO., INC | IN SERVICE | 21.9 mi |
| #30743 | 345 kV | AMERICAN ELECTRIC POWER CO., INC | IN SERVICE | 0.3 mi |
| #33566 | 345 kV | AMERICAN ELECTRIC POWER CO., INC | IN SERVICE | 21.9 mi |
| #36865 | 345 kV | INDIANA MICHIGAN POWER CO | IN SERVICE | 42.0 mi |
| #38566 | 345 kV | AMERICAN ELECTRIC POWER CO., INC | IN SERVICE | 22.2 mi |
| #48084 | 345 kV | INDIANA MICHIGAN POWER CO | IN SERVICE | 23.6 mi |
| #51007 | 345 kV | AMERICAN ELECTRIC POWER CO., INC | IN SERVICE | 31.5 mi |
| #64213 | 345 kV | INDIANA MICHIGAN POWER CO | — | 0.6 mi |
| #64670 | 345 kV | INDIANA MICHIGAN POWER CO | — | 0.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of COOK, 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 |
|---|---|---|---|---|---|---|---|
| ST. JOHN | Substation-Adjacent | IN | St. Joseph County | 345 kV | 600 MW | 2.2 yrs | 80.3 |
| KENZIE CREEK | Substation-Adjacent | MI | Cass County | 345 kV | 600 MW | 2.2 yrs | 77.2 |
| COOK | Substation-Adjacent | MI | Berrien County | 765 kV | 1,000 MW | 2.2 yrs | 75.5 |
| JACKSON ROAD | Substation-Adjacent | IN | St. Joseph County | 345 kV | 600 MW | 3.0 yrs | 73.7 |
| Greenfield (KENZIE CREEK - COOK) | Greenfield | MI | Cass County | 345 kV | 600 MW | 2.2 yrs | 73.4 |
| UNKNOWN123072 | Substation-Adjacent | IN | St. Joseph County | 138 kV | 100 MW | 2.2 yrs | 72.5 |
| Greenfield (COOK - DUMONT) | Greenfield | MI | Berrien County | 765 kV | 1,000 MW | 2.2 yrs | 72.4 |
| TWIN BRANCH (138 KV) | Substation-Adjacent | IN | St. Joseph County | 138 kV | 100 MW | 2.2 yrs | 72.2 |
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 COOK substation, Michigan. 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.