Data center site selection requires evaluating dozens of technical, environmental, and financial criteria for every candidate parcel. Power proximity, fiber infrastructure, soil bearing capacity, flood zone status, wetland presence, acreage suitability, road access, and land acquisition cost must all be assessed before a site reaches the shortlist. Manual evaluation of these criteria across hundreds of parcels takes weeks and still misses opportunities in emerging markets. GridAlpha automates the entire evaluation framework, scoring every parcel on a weighted 0–100 composite index that mirrors the criteria used by institutional site selectors at firms like JLL, CBRE, and Cushman & Wakefield. The result is a ranked pipeline of sites that have already passed every technical filter.
See scored parcelsThe complete checklist
Distance to nearest substation (230kV+) and transmission lines. GridAlpha indexes 47,000+ substations and 52,000+ transmission segments from HIFLD national infrastructure data. Sites within 3 miles score highest.
30% of technical scoreProximity to lit fiber routes from FCC Broadband Data Collection records. Sites within 1 mile receive the maximum fiber bonus (+10 points). Beyond 5 miles, fiber extension costs can exceed $100,000 per mile.
+10 point bonusUSDA Soil Survey data evaluates bearing capacity, drainage class, and soil composition. Data centers require minimum 2,000 psf bearing capacity. Expansive clay and high water table conditions increase foundation costs significantly.
Part of 30% technical scoreFEMA National Flood Hazard Layer and National Wetlands Inventory data. Sites in 100-year floodplains (Zone A/AE) are penalized. Wetland presence triggers Section 404 permitting requirements that add 6–18 months to timelines.
Part of 30% technical scoreScoring model
| Component | Weight | Data source |
|---|---|---|
| Acreage suitability | 20% | County parcel data |
| Technical (soil + flood + wetland) | 30% | USDA SDA, FEMA NFHL, NWI |
| Arbitrage (assessed vs. DC comps) | 30% | County assessor records |
| Owner motivation signals | 20% | Tax delinquency, absentee, long-hold |
| Fiber proximity bonus | +10 | FCC BDC |
| Rail access bonus | +5 | HIFLD |
| Highway access bonus | +5 | HIFLD |
Frequently asked questions
The primary criteria are power proximity (substation distance and voltage class), fiber infrastructure (lit fiber within 1–3 miles), acreage suitability (20–200+ acres), soil bearing capacity, flood risk (outside FEMA 100-year floodplain), wetland avoidance, road access, water availability, and land acquisition cost relative to data center land comps. GridAlpha scores all of these factors automatically on a weighted 0–100 composite index.
Power proximity is the single most important criterion. A data center drawing 50–500 MW needs a high-voltage substation (230kV+) within 3–5 miles to keep interconnection costs manageable. Sites beyond 5 miles face exponentially higher costs for dedicated transmission lines, and permitting timelines can extend beyond 36 months. GridAlpha weights power proximity at 30% of the composite technical score.
Data centers require high soil bearing capacity (minimum 2,000 psf) for heavy equipment including generators, UPS systems, and cooling infrastructure. USDA Soil Survey identifies soil types, drainage class, and bearing strength at the parcel level. Sandy loam and well-drained soils are preferred. Expansive clay and high water table conditions increase foundation costs by $2–5 per square foot.
Data centers must be located outside FEMA-designated 100-year floodplains (Zone A, AE, AH, AO). Sites in 500-year floodplains (Zone X shaded) are acceptable but less preferred. Flood zone status affects insurance costs, lender requirements, and tenant confidence. GridAlpha checks every parcel against the FEMA National Flood Hazard Layer and penalizes sites in high-risk zones.
Fiber infrastructure within 1 mile of the site is optimal, providing low-latency connectivity without expensive lateral construction. Sites 1–3 miles from lit fiber are viable but require carrier investment. Beyond 5 miles, fiber extension costs can exceed $50,000–100,000 per mile. GridAlpha applies a +10 point scoring bonus for parcels within 1 mile of existing fiber routes.
Requirements depend on scale. Edge facilities need 5–15 acres. Single-building enterprise or colocation centers require 15–40 acres. Campus-scale hyperscale deployments need 50–200+ acres for multiple buildings, on-site substations, cooling, and expansion phases. GridAlpha scores acreage suitability as 20% of the composite index, with the 20–150 acre range receiving the highest scores.
GridAlpha scores every parcel on power, fiber, soil, flood, wetland, acreage, and acquisition cost. Ranked leads delivered daily across 21 states.
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