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Datacenter Sites in Marion, Tennessee

Marion has 38 scored datacenter candidate sites averaging 55.9/100 DC Readiness, with a catalogued aggregate of 500 MW. FEMA rates local natural-hazard risk as "Relatively High". The county has a datacenter tax incentive on record.

At a glance

Marion, Tennessee has 38 scored datacenter candidate sites averaging 55.9/100 DC Readiness, roughly in line with the Tennessee average of 57.0. It ranks 13th of 87 Tennessee counties by number of sites and 58th by average score. The top-scoring site is NICKAJACK DAM at 62.8/100.

38
Candidate sites
55.9/100
Avg DC Readiness
500 MW
Catalogued capacity
theoretical aggregate
Relatively High
Hazard rating
◆ Loading map…
≥ 7560–7540–60≤ 40
Top 25 in Marion

Site-selection context for Marion

Yessales_tax_exemption
Datacenter tax incentive
10.34¢/kWh
Commercial electricity
6.55¢/kWh
Industrial electricity
6
Fiber providers
Low
Water stress
$5,249
Land price / acre
1,600
Cooling degree days
3,600
Heating degree days
58°F
Mean annual temp

Incentive detail: Sales tax exemption on DC equipment for $250M+ investments; no state income tax on wages.

How does Marion compare with other counties in Tennessee?

By number of scored sites, Marion ranks 13th of the 87 Tennessee counties with a county page, holding 1.7% of the state's 2,190 sites. Its average DC Readiness of 55.9/100 ranks 58th in the state and is roughly in line with the national average of 53.0. Nationally it has the 1017th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 17 score 55 or higher.

What types of datacenter sites are in Marion?

Former Mine sites are the most common (27, 71% of the county's inventory), followed by greenfield (5) and substation-adjacent (4). Site type reflects how the parcel was identified — next to a substation, on a former mine or brownfield, on industrial or federal excess land — and is scored on the same 14 factors either way.

What are power cost, hazard, water and fiber conditions in Marion?

Industrial electricity averages 6.55¢/kWh and commercial 10.34¢/kWh. FEMA's National Risk Index rates the county "Relatively High" (38). WRI water stress is low. 6 fiber providers report service in the county. The climate runs 1,600 cooling degree days a year with a mean temperature of 58°F. Land is valued around $5,249 an acre.

By site type

Top datacenter sites in Marion

Top datacenter sites in Marion
SiteTypeVoltageCapacityQueue waitScore
NICKAJACK DAMSubstation-Adjacent161 kV100 MW3.9 yrs62.8
JASPERSubstation-Adjacent161 kV100 MW3.9 yrs62.8
TAP152970Substation-Adjacent161 kV100 MW3.9 yrs62.6
UNKNOWN114297Substation-Adjacent161 kV100 MW3.9 yrs61.5
OZ MarionGreenfield——3.9 yrs60.6
EC Coal Marion CountyGreenfield——3.9 yrs59.8
EC Coal Marion CountyGreenfield——3.9 yrs59.7
EC Coal Marion CountyGreenfield——3.9 yrs59.3
Mine SiteFormer Mine——3.9 yrs56.6
Mine SiteFormer Mine——3.9 yrs56.4
Mine SiteFormer Mine——3.9 yrs56.1
Old South Pittsburg HospitalIndustrial——3.9 yrs55.7
Mine SiteFormer Mine——3.9 yrs55.6
Mine SiteFormer Mine——3.9 yrs55.6
Mine SiteFormer Mine——3.9 yrs55.4
Greenfield (TAP152977 - TAP161981)Greenfield161 kV100 MW3.9 yrs55.2
Mine SiteFormer Mine——3.9 yrs55.1
Mine SiteFormer Mine——3.9 yrs54.9
Mine SiteFormer Mine——3.9 yrs54.8
Mine SiteFormer Mine——3.9 yrs54.8
Mine SiteFormer Mine——3.9 yrs54.5
Mine SiteFormer Mine——3.9 yrs54.5
Former Whitwell Middle SchoolIndustrial——3.9 yrs54.4
Mine SiteFormer Mine——3.9 yrs54.3
Mine SiteFormer Mine——3.9 yrs54.2

Every scored site in Marion

All 38 sites, best first.

Marion datacenter FAQ

How many datacenter sites are in Marion?

38 scored datacenter candidate sites, averaging 55.9/100 DC Readiness. That is the 13th-most of 87 Tennessee counties with five or more sites.

What is the highest-scoring datacenter site in Marion?

NICKAJACK DAM scores 62.8/100 DC Readiness, the highest of the 38 scored sites in Marion (a substation-adjacent site).

Does Marion offer datacenter tax incentives?

Sales tax exemption on DC equipment for $250M+ investments; no state income tax on wages.

What is the natural-hazard risk in Marion?

FEMA's National Risk Index rates Marion as "Relatively High" (score 38).

What are industrial electricity rates in Marion?

Average industrial electricity is 6.55¢/kWh and commercial is 10.34¢/kWh in Marion.

More in Tennessee

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 November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: GridCensus, “Datacenter candidate sites in Marion, Tennessee”, https://gridcensus.com/datacenter-sites/tennessee/marion (data as of November 12, 2026).

Dataset updated . Screening estimates derived from public data sources.

Go deeper than the public screen

Every site and score for Marion, Tennessee 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.

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