Dallman
BrownfieldSpringfield, Sangamon, Illinois · City of Springfield - (IL)
Dallman is a coal plant in Springfield, Sangamon, Illinois, retired 2024-03-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 388 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 Dallman, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| EC Coal Macoupin County | Greenfield | IL | Macoupin County | — | — | 4.6 yrs | 60.9 |
| KINCAID STATION | Substation-Adjacent | IL | Christian County | 345 kV | 600 MW | 3.8 yrs | 60.6 |
| EC Near Archer Daniels Midland Taylorville | Greenfield | IL | Christian | — | — | 4.6 yrs | 60.4 |
| LANESVILLE | Substation-Adjacent | IL | Sangamon County | 345 kV | 600 MW | 3.8 yrs | 60.2 |
| PAWNEE | Substation-Adjacent | IL | Sangamon County | 345 kV | 600 MW | 3.8 yrs | 60.2 |
| AUSTIN | Substation-Adjacent | IL | Sangamon County | 345 kV | 600 MW | 3.8 yrs | 60.2 |
| EC Coal Sangamon County | Greenfield | IL | Sangamon County | — | — | 4.6 yrs | 59.7 |
| EC Near Dallman | Greenfield | IL | Sangamon | — | — | 4.6 yrs | 59.3 |
See all datacenter sites in Illinois →
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 Dallman, Springfield, Sangamon, 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.