ZION
SubstationMichigan · COMMONWEALTH EDISON CO
ZION is an electric transmission substation in Michigan, operated by COMMONWEALTH EDISON CO. 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #1800 | 345 kV | COMMONWEALTH EDISON CO | IN SERVICE | 6.0 mi |
| #6233 | 345 kV | COMMONWEALTH EDISON CO | IN SERVICE | 5.4 mi |
| #6416 | 345 kV | COMMONWEALTH EDISON CO | IN SERVICE | 18.7 mi |
| #35621 | 345 kV | COMMONWEALTH EDISON CO | IN SERVICE | 5.4 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of ZION, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN121936 | Substation-Adjacent | WI | Kenosha County | 345 kV | 600 MW | 1.4 yrs | 79.1 |
| PLEASANT PRAIRIE | Substation-Adjacent | WI | Kenosha County | 345 kV | 600 MW | 1.4 yrs | 76.9 |
| TAP137936 | Substation-Adjacent | IL | Kane County | 345 kV | 600 MW | 2.2 yrs | 76.1 |
| TOLLWAY | Substation-Adjacent | IL | Kane County | 345 kV | 600 MW | 2.2 yrs | 76.0 |
| RACINE | Substation-Adjacent | WI | Racine County | 345 kV | 600 MW | 1.4 yrs | 75.7 |
| COMMONWEALTH EDISON DES PLAINES (345KV) | Substation-Adjacent | IL | DuPage County | 345 kV | 600 MW | 2.2 yrs | 75.5 |
| TAP137895 | Substation-Adjacent | IL | Lake County | 345 kV | 600 MW | 2.2 yrs | 75.1 |
| PROSPECT HEIGHTS | Substation-Adjacent | IL | Lake County | 345 kV | 600 MW | 2.2 yrs | 74.8 |
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 ZION 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.