SIDNEY
SubstationIllinois · AMEREN ILLINOIS COMPANY
SIDNEY is an electric transmission substation in Illinois, operated by AMEREN ILLINOIS COMPANY. It is classified as high-voltage (345 kv) and connects 7 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 |
|---|---|---|---|---|
| #15114 | 345 kV | AMEREN ILLINOIS COMPANY | IN SERVICE | 19.7 mi |
| #15108 | 345 kV | AMEREN ILLINOIS COMPANY | IN SERVICE | 24.2 mi |
| #15113 | 345 kV | AMEREN ILLINOIS COMPANY | — | 35.5 mi |
| #10786 | 138 kV | AMEREN ILLINOIS COMPANY | IN SERVICE | 8.6 mi |
| #15146 | 138 kV | AMEREN ILLINOIS COMPANY | IN SERVICE | 17.9 mi |
| #23829 | 138 kV | AMEREN ILLINOIS COMPANY | IN SERVICE | 15.6 mi |
| #55125 | 138 kV | AMEREN ILLINOIS COMPANY | IN SERVICE | 14.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SIDNEY, 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 |
|---|---|---|---|---|---|---|---|
| SIDNEY | Substation-Adjacent | IL | Champaign County | 345 kV | 600 MW | 4.6 yrs | 72.3 |
| BUNSENVILLE | Substation-Adjacent | IL | Vermilion County | 345 kV | 600 MW | 4.6 yrs | 70.9 |
| TAP138267 | Substation-Adjacent | IL | Vermilion County | 345 kV | 600 MW | 4.6 yrs | 70.1 |
| KANSAS WEST | Substation-Adjacent | IL | Edgar County | 345 kV | 600 MW | 4.6 yrs | 69.0 |
| TAP156130 | Substation-Adjacent | IL | Champaign County | 138 kV | 100 MW | 4.6 yrs | 69.0 |
| UNKNOWN122042 | Substation-Adjacent | IL | Champaign County | 138 kV | 100 MW | 4.6 yrs | 68.7 |
| UNKNOWN156912 | Substation-Adjacent | IL | Champaign County | 138 kV | 100 MW | 4.6 yrs | 68.3 |
| Greenfield (SIDNEY - KANSAS WEST) | Greenfield | IL | Douglas County | 345 kV | 600 MW | 4.6 yrs | 66.8 |
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.
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This page shows a public slice of the GridCensus dataset for SIDNEY substation, Illinois. 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.