OZ Madison
GreenfieldMadison County, Iowa · MISO
OZ Madison is a greenfield datacenter candidate site in Madison County, Iowa, interconnecting through MISO. It screens at 59.7/100 DC Readiness and a 1.4 yrs average interconnection-queue wait.
Power & interconnection
Speed to power
Connectivity
Site characteristics
Risk & environment
Location context
Incentive detail: Sales tax exemption on DC equipment for $1M+ investments; property tax phase-in for new construction.
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 Madison County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| BOONEVILLE | Substation-Adjacent | 345 kV | 600 MW | 1.4 yrs | 74.8 |
| MADISON COUNTY | Substation-Adjacent | 345 kV | 600 MW | 1.4 yrs | 72.4 |
| Greenfield (MADISON COUNTY - NORWALK) | Greenfield | 345 kV | 600 MW | 1.4 yrs | 68.8 |
| EARLHAM | Substation-Adjacent | 161 kV | 100 MW | 1.4 yrs | 68.3 |
| WINTERSET JUNCTION | Substation-Adjacent | 161 kV | 100 MW | 1.4 yrs | 68.1 |
| Greenfield (UNKNOWN137755 - GRIMES) | Greenfield | 345 kV | 600 MW | 3.5 yrs | 67.9 |
| UNKNOWN131419 | Substation-Adjacent | 161 kV | 100 MW | 1.4 yrs | 67.9 |
| Greenfield (ATCHISON - BOONEVILLE) | Greenfield | 345 kV | 600 MW | 3.5 yrs | 67.5 |
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.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for OZ Madison, Madison County. 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.