Greenfield Light Plant
BrownfieldGreenfield, Adair, Iowa · City of Greenfield - (IA)
Greenfield Light Plant is a oil plant in Greenfield, Adair, Iowa, retired 2018-12-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 6 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 Greenfield Light Plant, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| EC Near Corning | Greenfield | IA | Adams | — | — | 1.4 yrs | 61.0 |
| EC Near Corning | Greenfield | IA | Adams | — | — | 1.4 yrs | 60.8 |
| EC Near Greenfield Light Plant | Greenfield | IA | Adair | — | — | 1.4 yrs | 60.7 |
| EC Near Greenfield Light Plant | Greenfield | IA | Adair | — | — | 1.4 yrs | 60.7 |
| OZ Union | Greenfield | IA | Union | — | — | 1.4 yrs | 60.5 |
| EC Near Summit Lake | Greenfield | IA | Union | — | — | 1.4 yrs | 60.3 |
| EC Near Summit Lake | Greenfield | IA | Union | — | — | 1.4 yrs | 60.1 |
| EC Near Summit Lake | Greenfield | IA | Union | — | — | 1.4 yrs | 60.1 |
See all datacenter sites in Iowa →
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 Greenfield Light Plant, Greenfield, Adair, Iowa. 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.