4 AC Station
BrownfieldEast Chicago, Lake, Indiana · Cleveland Cliffs
4 AC Station is a coal plant in East Chicago, Lake, Indiana, retired 1999-04-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 135 MW of generation, so the grid hookup, transmission rights, and often cooling-water access are already in place — collapsing the speed-to-power timeline versus a greenfield build.
Former use & capacity
Grid hookup & remediation
Nearby datacenter candidate sites
Scored candidate sites near 4 AC Station, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| UNKNOWN124436 | Substation-Adjacent | IL | Cook County | 345 kV | 600 MW | 2.2 yrs | 78.0 |
| SHEFFIELD | Substation-Adjacent | IN | Lake County | 345 kV | 600 MW | 2.2 yrs | 76.9 |
| UNKNOWN122269 | Substation-Adjacent | IL | Cook County | 345 kV | 600 MW | 2.2 yrs | 76.8 |
| TAP160103 | Substation-Adjacent | IL | Cook County | 345 kV | 600 MW | 2.2 yrs | 76.6 |
| BLUE ISLAND | Substation-Adjacent | IN | Lake County | 345 kV | 600 MW | 4.6 yrs | 75.9 |
| BURNHAM | Substation-Adjacent | IL | Cook County | 345 kV | 600 MW | 2.2 yrs | 75.8 |
| Crawford | Brownfield | IL | Cook | — | 805 MW | — | 75.6 |
| SHEFFIELD | Substation-Adjacent | IN | Lake County | 345 kV | 600 MW | 4.6 yrs | 75.4 |
Nearby internet exchanges
- Equinix CH1/CH2/CH4 - ChicagoChicago, IL · 329 networks
- Digital Realty CHI (350 E Cermak)Chicago, IL · 97 networks
- CoreSite - Chicago (CH1)Chicago, IL · 71 networks
- Equinix CH3 - Elk GroveElk Grove Village, IL · 44 networks
See all datacenter sites in Indiana →
Dataset updated . Screening estimates derived from public data sources.
Brownfield attributes are derived from EIA retired-generator and EPA public data. Existing capacity reflects the retired plant's historical nameplate, not deliverable interconnection for a new load. Confirm reusable interconnection rights, remediation status, and site availability with the utility, ISO, and current owner.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for 4 AC Station, East Chicago, Lake, Indiana. 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.