Datacenter Sites in Union County, Ohio
Union County has 25 scored datacenter candidate sites averaging 65.0/100 DC Readiness, with a catalogued aggregate of 10,800 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.
25
Candidate sites
65.0/100
Avg DC Readiness
10,800 MW
Catalogued capacity
theoretical aggregate
Relatively Moderate
Hazard rating
Site-selection context for Union County
Yessales_tax_exemption
Datacenter tax incentive
10.69¢/kWh
Commercial electricity
8.26¢/kWh
Industrial electricity
14
Fiber providers
Low
Water stress
$8,151
Land price / acre
900
Cooling degree days
5,400
Heating degree days
51°F
Mean annual temp
Incentive detail: DC sales tax exemption on equipment and electricity (2022 law); JobsOhio grants.
By site type
Top datacenter sites in Union County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| MARYSVILLE | Substation-Adjacent | 765 kV | 1,000 MW | 3.8 yrs | 64.8 |
| Greenfield (CORRIDOR - MARYSVILLE) | Greenfield | 765 kV | 1,000 MW | 3.8 yrs | 61.8 |
| Greenfield (FLATLICK - MARYSVILLE) | Greenfield | 765 kV | 1,000 MW | 3.8 yrs | 60.9 |
| UNKNOWN113285 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 60.2 |
| UNKNOWN141217 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 59.5 |
| UNKNOWN152449 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 59.3 |
| UNKNOWN113252 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 56.2 |
| Mine Site | Former Mine | — | — | 3.8 yrs | 55.1 |
| Mine Site | Former Mine | — | — | 3.8 yrs | 55.1 |
| Greenfield (MARYSVILLE - UNKNOWN177055) | Greenfield | 345 kV | 600 MW | 8.2 yrs | 52.5 |
| Greenfield (UNKNOWN152449 - TAP153615) | Greenfield | 138 kV | 100 MW | 3.8 yrs | 52.2 |
| Greenfield (UNKNOWN113252 - TAP163085) | Greenfield | 138 kV | 100 MW | 3.8 yrs | 48.9 |
Union County datacenter FAQ
- How many datacenter sites are in Union County?
- 25 scored datacenter candidate sites, averaging 65.0/100 DC Readiness.
- Does Union County offer datacenter tax incentives?
- DC sales tax exemption on equipment and electricity (2022 law); JobsOhio grants.
- What is the natural-hazard risk in Union County?
- FEMA's National Risk Index rates Union County as "Relatively Moderate" (score 30).
- What are industrial electricity rates in Union County?
- Average industrial electricity is 8.26¢/kWh and commercial is 10.69¢/kWh in Union County.
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for Union County, Ohio. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.