DMACC 2
IndustrialDallas County, Iowa · MISO
At a glance
DMACC 2 is an industrial datacenter candidate site in Dallas County, Iowa, scoring 53.7/100 DC Readiness — 24th of 92 scored sites in the county. It sits in the MISO grid region and the MIDAMERICAN ENERGY CO service territory, where interconnection has averaged 4.3 years from request to operation.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
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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How does DMACC 2 compare with other sites in Dallas County?
DMACC 2 ranks 24th of 92 scored candidate sites in Dallas County. Its 53.7/100 is roughly in line with the county average of 54.9. It is roughly in line with the Iowa average of 56.4 and roughly in line with the national average of 53.2.
Against the Iowa average, its strongest sub-score is fiber connectivity (81 vs 77) and its weakest is power availability (30 vs 37). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is DMACC 2 to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is US Signal IA01 - Des Moines at 19.9 miles. 20 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Apple, 17.9 miles away.
What are the flood, water and hazard risks at DMACC 2?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). At the county level, FEMA's National Risk Index rates Dallas County "Relatively Moderate".
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 Dallas County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| GRIMES | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 68.1 |
| Milwaukee & St. Paul Rail Yard Company Solar | Brownfield | 161 kV | 1 MW | 4.3 yrs | 64.3 |
| UNKNOWN137711 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 63.7 |
| UNKNOWN132145 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 63.6 |
| UNKNOWN137710 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 63.5 |
| UNKNOWN156384 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 63.3 |
| UNKNOWN132140 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 61.8 |
| UNKNOWN137697 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 61.0 |
DMACC 2: common questions
What is the DC Readiness score of DMACC 2?
DMACC 2 scores 53.7/100 on the GridCensus DC Readiness scale, rated fair. It ranks 24th of 92 scored sites in Dallas County. The Dallas County average is 54.9 and the Iowa average is 56.4.
Which electric utility serves DMACC 2?
MIDAMERICAN ENERGY CO (investor owned) holds the retail service territory that contains the site; its holding company is BERKSHIRE HATHAWAY ENERGY.
What grid region is DMACC 2 in?
DMACC 2 is in the MISO region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
Is DMACC 2 in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
How far is DMACC 2 from an internet exchange?
The nearest internet exchange facility is US Signal IA01 - Des Moines, about 19.9 miles away; 20 fiber providers report service at the location.
Related pages
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “DMACC 2, Dallas County, IA”, https://gridcensus.com/datacenter-sites/iowa/dallas-county/dmacc-2-192f6b10 (data as of October 10, 2026).
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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