SOUTH HAVEN
SubstationMichigan · AEP
At a glance
SOUTH HAVEN is an electric transmission substation in Michigan, on AEP's transmission network. It is classified as unclassified and connects 0 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 |
|---|---|---|---|---|
| #400242 | 69 kV | AEP | IN SERVICE | 2.9 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SOUTH HAVEN, 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 |
|---|---|---|---|---|---|---|---|
| BENTON HARBOR | Substation-Adjacent | MI | Van Buren County | 345 kV | 600 MW | 2.2 yrs | 66.1 |
| UNKNOWN173428 | Substation-Adjacent | MI | Van Buren County | 345 kV | 600 MW | 2.2 yrs | 64.8 |
| PALISADES | Substation-Adjacent | MI | Van Buren County | 345 kV | 600 MW | 2.2 yrs | 64.7 |
| EC Near Claude Vandyke | Greenfield | MI | Allegan | — | — | 2.2 yrs | 63.6 |
| TAP145860 | Substation-Adjacent | MI | Cass County | 138 kV | 100 MW | 2.2 yrs | 62.9 |
| VALLEY | Substation-Adjacent | MI | Cass County | 138 kV | 100 MW | 2.2 yrs | 62.4 |
| OZ Berrien | Greenfield | MI | Berrien | — | — | 2.2 yrs | 61.6 |
| EC Near Autumn Hills Generating Facility | Greenfield | MI | Ottawa | — | — | 2.2 yrs | 61.0 |
Who owns the transmission lines at SOUTH HAVEN?
The 1 connected line listed above is owned by AEP. Line voltages range from 69 kV to 69 kV. Their combined recorded length is about 2.9 miles.
How do candidate sites near SOUTH HAVEN score?
The 8 highest-scoring candidate sites within about 25 miles range from 61 to 66 on the 0–100 DC Readiness scale. They fall in Van Buren County, Allegan, Cass County, Berrien. The Michigan average across 5,157 scored sites is 55.2. 768 of those Michigan sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
How many transmission lines connect to SOUTH HAVEN substation?
0 transmission lines terminate at or pass through SOUTH HAVEN in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 2.9 miles.
Who owns SOUTH HAVEN substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at SOUTH HAVEN belong to AEP. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is SOUTH HAVEN substation located?
SOUTH HAVEN is in Michigan at 42.3818, -86.2789. The datacenter candidate sites closest to it are in Van Buren County, Allegan, Cass County.
Are there datacenter candidate sites near SOUTH HAVEN substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of SOUTH HAVEN. The highest-scoring is BENTON HARBOR at 66/100. Across Michigan, the average DC Readiness score is 55.2.
More in Michigan
About this data
Source: HIFLD Electric Substations and Transmission Lines (U.S. Department of Homeland Security), as published June 29, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “SOUTH HAVEN substation, Michigan”, https://gridcensus.com/substations/michigan/south-haven-29056c39 (data as of June 29, 2026).
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
Every site and score for SOUTH HAVEN substation, Michigan is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.