EC Near Sumner
GreenfieldBremer County, Iowa · MISO
At a glance
EC Near Sumner is a greenfield datacenter candidate site in Bremer County, Iowa, scoring 54.8/100 DC Readiness — 29th of 32 scored sites in the county. It sits in the MISO grid region and the INTERSTATE POWER AND LIGHT 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 EC Near Sumner compare with other sites in Bremer County?
EC Near Sumner ranks 29th of 32 scored candidate sites in Bremer County. Its 54.8/100 is roughly in line with the county average of 59.0. 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 natural hazard (70 vs 69) and its weakest is fiber connectivity (31 vs 77). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is EC Near Sumner to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is SFN IA-Waterloo at 30 miles. 9 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is SFN IA-Waterloo, 30 miles away.
What are the flood, water and hazard risks at EC Near Sumner?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). WRI rates baseline water stress at 0.60 on a 0–5 scale. No mapped wetlands are recorded on the parcel. At the county level, FEMA's National Risk Index rates Bremer 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 Bremer County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| EC Near Waverly Municipal Electric North Plant | Greenfield | — | — | 4.3 yrs | 65.0 |
| EC Near Waverly Municipal Electric North Plant | Greenfield | — | — | 4.3 yrs | 63.5 |
| EC Near Waverly Municipal Electric North Plant | Greenfield | — | — | 4.3 yrs | 62.4 |
| EC Near Waverly Municipal Electric North Plant | Greenfield | — | — | 4.3 yrs | 62.4 |
| EC Near Sumner | Greenfield | — | — | 4.3 yrs | 61.6 |
| EC Near Waverly Municipal Electric North Plant | Greenfield | — | — | 4.3 yrs | 61.4 |
| EC Near Waverly Municipal Electric North Plant | Greenfield | — | — | 4.3 yrs | 61.1 |
| EC Near Waverly Municipal Electric North Plant | Greenfield | — | — | 4.3 yrs | 60.9 |
EC Near Sumner: common questions
What is the DC Readiness score of EC Near Sumner?
EC Near Sumner scores 54.8/100 on the GridCensus DC Readiness scale, rated fair. It ranks 29th of 32 scored sites in Bremer County. The Bremer County average is 59.0 and the Iowa average is 56.4.
Which electric utility serves EC Near Sumner?
INTERSTATE POWER AND LIGHT CO (investor owned) holds the retail service territory that contains the site; its holding company is ALLIANT ENERGY CORP.
What grid region is EC Near Sumner in?
EC Near Sumner is in the MISO region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
Is EC Near Sumner in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
Who owns EC Near Sumner?
Parcel records list the owner as MIDAMERICAN ENERGY CO (private land).
How far is EC Near Sumner from an internet exchange?
The nearest internet exchange facility is SFN IA-Waterloo, about 30 miles away; 9 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, “EC Near Sumner, Bremer County, IA”, https://gridcensus.com/datacenter-sites/iowa/bremer-county/ec-near-sumner-140b063c (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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