Greenfield Light Plant
BrownfieldAdair, Iowa · MISO
Greenfield Light Plant is a brownfield datacenter candidate site in Adair, Iowa, interconnecting through MISO. It screens at 55.5/100 DC Readiness with a catalogued 6 MW of candidate capacity and a 1.4 yrs average interconnection-queue wait.
Power & interconnection
Speed to power
Shorter queues and healthier completion here — a faster path to energization than the national norm.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
Strong incentives; utilities courting hyperscale load.
Incentive detail: Sales tax exemption on DC equipment for $1M+ investments; property tax phase-in for new construction.
Site location
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Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Adair, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| EC Near Greenfield Light Plant | Greenfield | — | — | 1.4 yrs | 59.0 |
| EC Near Greenfield Light Plant | Greenfield | — | — | 1.4 yrs | 59.0 |
| EC Near Greenfield Light Plant | Greenfield | — | — | 1.4 yrs | 57.8 |
| EC Near Greenfield Light Plant | Greenfield | — | — | 1.4 yrs | 57.6 |
| EC Near Greenfield Light Plant | Greenfield | — | — | 1.4 yrs | 57.5 |
| EC Near Greenfield Light Plant | Greenfield | — | — | 1.4 yrs | 57.4 |
| EC Near Greenfield Light Plant | Greenfield | — | — | 1.4 yrs | 57.3 |
| UNKNOWN131508 | Substation-Adjacent | 161 kV | 100 MW | 2.8 yrs | 57.1 |
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
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This page shows a public slice of the GridCensus dataset for Greenfield Light Plant, Adair. Pro and Enterprise plans unlock the full 147,272-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.