TAP139899
SubstationMichigan · CONSUMERS ENERGY CO
TAP139899 is an electric transmission substation in Michigan, operated by CONSUMERS ENERGY CO. It is classified as sub-transmission (138 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #648 | 138 kV | CONSUMERS ENERGY CO | IN SERVICE | 2.0 mi |
| #11948 | 138 kV | CONSUMERS ENERGY CO | IN SERVICE | 0.0 mi |
| #11986 | 138 kV | CONSUMERS ENERGY CO | IN SERVICE | 9.8 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP139899, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN128569 | Substation-Adjacent | MI | Gratiot County | 345 kV | 600 MW | 2.2 yrs | 74.9 |
| TITTABAWASSEE | Substation-Adjacent | MI | Midland County | 345 kV | 600 MW | 2.2 yrs | 72.6 |
| TAP145748 | Substation-Adjacent | MI | Gratiot County | 138 kV | 100 MW | 2.2 yrs | 69.5 |
| TAP145655 | Substation-Adjacent | MI | Gratiot County | 138 kV | 100 MW | 2.2 yrs | 69.0 |
| UNKNOWN128625 | Substation-Adjacent | MI | Saginaw County | 345 kV | 600 MW | 2.2 yrs | 67.6 |
| UNKNOWN128546 | Substation-Adjacent | MI | Gratiot County | 138 kV | 100 MW | 2.2 yrs | 67.2 |
| UNKNOWN128559 | Substation-Adjacent | MI | Saginaw County | 138 kV | 100 MW | 2.2 yrs | 67.2 |
| UNKNOWN128561 | Substation-Adjacent | MI | Saginaw County | 138 kV | 100 MW | 2.2 yrs | 67.1 |
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 TAP139899 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.