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Gridcensus

St. Louis County, Missouri · MISO

DC Readiness
59.3
Good / 100

TAP139464 is a substation-adjacent datacenter candidate site in St. Louis County, Missouri, interconnecting through MISO. It screens at 59.3/100 DC Readiness with a catalogued 100 MW of candidate capacity and a 2.8 yrs average interconnection-queue wait.

Power & interconnection

Nearest substationTAP139464
Substation distance0.0 mi
Substation voltage138 kV
Available capacity100 MW
UtilityUNION ELECTRIC CO - (MO)investor ownedmoderate to large load · terms ≥ 100 MW

Speed to power

Interconnection outlookFavorable
≈ 2.8 yrs typical interconnection wait

Shorter queues and healthier completion here — a faster path to energization than the national norm.

ISO / RTO regionMISO
Queue depth52
Avg queue wait2.8 yrs

Connectivity

Nearest IXPTierPoint St. Louis – Millpark
IXP distance6.9 mi
Fiber providers9
Fiber coverage78.4%

Site characteristics

Risk & environment

Environmental constraintNone (0/100)
Water stress (WRI)Low
Wetlands (NWI)—
Critical habitat—
Superfund nearby—
Hazard sub-score62/100

Location context

Nearest datacenterTierPoint St. Louis – Millpark
DC distance6.9 mi
County hazard (FEMA NRI)Relatively High (38)
DC tax incentiveYes (sales_tax_exemption)
Commercial electricity10.33¢/kWh
Industrial electricity8.24¢/kWh
Cooling degree days1,500
Heating degree days4,700
Land price / acre$10,928

Regulatory climate

Moderatestate posture · as of 2026-08

No notable statewide DC restriction on record; confirm local zoning and utility tariffs.

DC tax incentiveNo / suspended

Incentive detail: Qualified data center sales tax exemption (2019 law); state income tax credits.

Site location

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≥ 7560–7540–60≤ 40
This site + 8 nearby

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Full DC Readiness breakdown

All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.

Power availability20%
58
Speed to power20%
28
Fiber connectivity12%
91
Energy cost10%
50
Water risk7%
88
Natural hazard6%
62
Buildability7%
60
Labor market4%
50
DC cluster4%
80
Land / acreage3%
48
Construction cost3%
50
Gas pipeline2%
10
Tax incentive1%
100
Climate / cooling1%
50

Nearby comparable sites

Other scored datacenter candidate sites in St. Louis County, ranked by DC Readiness.

Sites near TAP139464
SiteTypeVoltageCapacityQueue waitScore
MASONSubstation-Adjacent345 kV600 MW2.8 yrs65.3
UNKNOWN117706Substation-Adjacent345 kV600 MW2.8 yrs64.2
TYSONSubstation-Adjacent345 kV600 MW2.8 yrs64.1
EC Near Howard BendGreenfield——1.4 yrs64.0
OZ St. LouisGreenfield——1.4 yrs63.1
OZ St. LouisGreenfield——1.4 yrs62.9
OZ St. LouisGreenfield——1.4 yrs62.6
OZ St. LouisGreenfield——1.4 yrs62.3

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

Every site and score for TAP139464, St. Louis County is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.