PINCKNEYVILLE STATION
SubstationIllinois · AMEREN ILLINOIS COMPANY
At a glance
PINCKNEYVILLE STATION is an electric transmission substation in Illinois, on AMEREN ILLINOIS COMPANY's transmission network. It is classified as high-voltage (230 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 |
|---|---|---|---|---|
| #112137 | 230 kV | AMEREN ILLINOIS COMPANY | IN SERVICE | 0.1 mi |
| #127819 | 230 kV | AMEREN ILLINOIS COMPANY | IN SERVICE | 9.9 mi |
| #134372 | 230 kV | AMEREN ILLINOIS COMPANY | IN SERVICE | 0.3 mi |
| #148453 | 230 kV | AMEREN ILLINOIS COMPANY | IN SERVICE | 15.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of PINCKNEYVILLE STATION, 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 |
|---|---|---|---|---|---|---|---|
| PRAIRIE STATE STATION | Substation-Adjacent | IL | Washington County | 345 kV | 600 MW | 4.8 yrs | 61.3 |
| WEST MOUNT VERNON | Substation-Adjacent | IL | Jefferson County | 345 kV | 600 MW | 4.8 yrs | 61.0 |
| EC Coal Williamson County | Greenfield | IL | Williamson County | — | — | 4.8 yrs | 59.9 |
| PINCKNEYVILLE STATION | Substation-Adjacent | IL | Perry County | 230 kV | 300 MW | 4.8 yrs | 59.9 |
| EC Coal Williamson County | Greenfield | IL | Williamson County | — | — | 4.8 yrs | 59.5 |
| UNKNOWN122403 | Substation-Adjacent | IL | Washington County | 230 kV | 300 MW | 4.8 yrs | 59.3 |
| OZ Williamson | Greenfield | IL | Williamson | — | — | 4.8 yrs | 59.1 |
| UNKNOWN122131 | Substation-Adjacent | IL | Perry County | 230 kV | 300 MW | 4.8 yrs | 59.1 |
How does PINCKNEYVILLE STATION compare with other substations in Illinois?
Illinois has 1,986 substation records in HIFLD, of which 209 carry a station name; the rest are unnamed tap points, risers and line ends. 3 named substations in the state are in PINCKNEYVILLE STATION's 230–344 kV band (1% of named stations). 92 sit in a higher band. 92 named substations in Illinois operate at 345 kV or above. The highest voltage recorded in the state is 765 kV, and the state median is 161 kV.
Who owns the transmission lines at PINCKNEYVILLE STATION?
The 4 connected lines listed above are owned by AMEREN ILLINOIS COMPANY. Line voltages range from 230 kV to 230 kV. Their combined recorded length is about 25.5 miles.
How do candidate sites near PINCKNEYVILLE STATION score?
The 8 highest-scoring candidate sites within about 25 miles range from 59 to 61 on the 0–100 DC Readiness scale. They fall in Washington County, Jefferson County, Williamson County, Perry County. The Illinois average across 3,641 scored sites is 54.3. 795 of those Illinois sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is PINCKNEYVILLE STATION substation?
PINCKNEYVILLE STATION has a maximum voltage of 230 kV. That places it in the 230–344 kV band. The median named US substation in this dataset is 115 kV, so PINCKNEYVILLE STATION is above the national midpoint.
How many transmission lines connect to PINCKNEYVILLE STATION substation?
4 transmission lines terminate at or pass through PINCKNEYVILLE STATION in the HIFLD line data. The connected lines listed here run at 230 kV. Together the listed lines cover about 25.5 miles.
Who owns PINCKNEYVILLE STATION substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at PINCKNEYVILLE STATION belong to AMEREN ILLINOIS COMPANY. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is PINCKNEYVILLE STATION substation located?
PINCKNEYVILLE STATION is in Illinois at 38.1116, -89.3485. The datacenter candidate sites closest to it are in Washington County, Jefferson County, Williamson County.
Are there datacenter candidate sites near PINCKNEYVILLE STATION substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of PINCKNEYVILLE STATION. The highest-scoring is PRAIRIE STATE STATION at 61/100. Across Illinois, the average DC Readiness score is 54.3.
Other 230 kV substations in Illinois
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, “PINCKNEYVILLE STATION substation, Illinois”, https://gridcensus.com/substations/illinois/pinckneyville-station-7db35ac6 (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 PINCKNEYVILLE STATION substation, Illinois 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.