Planned

Ardent Technologies / TAC Data Centers Wilmington campus

Ardent Technologies / TAC Data Centers Wilmington campus is a planned data center in Wilmington, OH, with Ardent Technologies (TAC Data Centers) named as the developer. Reported capacity is 500 MW. Wilmington City Council voted 5-2 on Feb 19, 2026 to rezone another ~500 acres for a data center campus proposed by Ardent Technologies (TAC Data Centers), separate from Amazon's tabled $4B Wilmington project; dcmap.us lists it at ~500 MW. Opponents (Wilmington Residents for Responsible Development) pursued referendum and litigation; the Ohio Supreme Court kept a Wilmington data center ballot measure off the Nov 2026 ballot (Sept 2026). (Source dated 2026-02-19.).

500 MWPlanned capacity

Google Street View · nearby land, not the exact site

Project status

Announced
Permitting
Under constructionNot yet
OperationalNot yet

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What’s next

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Tuesday, November 3
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Stories about it, and about Clinton County, OH, land here.

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Records and documentation

Ohio state legislation

PUCO Case No. 23-891-EL-AEC - New Albany Data Center (Silicon Heartland) Electric ArrangementApprovaldis.puc.state.oh.usPUCO approved Feb 2024 -- New Albany Data Center leases a substation/equipment from AEP Ohio for an 8-year term, part of the $500M Silicon Heartland Datacenter Campus build.Download
PUCO Case No. 24-0508-EL-ATA - AEP Ohio Data Center TariffApprovaldis.puc.state.oh.usFiled May 2024; PUCO adopted a settlement (July 2025) requiring 25MW+ data center customers to commit to ≥85% minimum-take of subscribed capacity, 12-year contracts, 3-year exit fee. Companion Mobile Data Center tariff in the same docket. The template several other states' tariffs since referenced.Download
PUCO Case No. 25-0958-EL-AIR - AES Ohio Rate Case (Data Center Rate Class)Approvalocc.ohio.govUnopposed settlement filed ~July 2026 creating a separate Data Center rate class for AES Ohio, tied to ~2.1GW of contracted data-center load. PUCO order expected Dec 2026.Download
Marysville Community Reinvestment Area Agreement (City Council Meeting Packet)Community benefits agreementfas.orgCommunity Reinvestment Area agreement/council packet governing tax and community terms for a Marysville, Ohio data center project.Download
HB 983 - Data Center Accountability and Citizen Protection ActLegislationdatacenterbans.comEstablishes accountability and citizen-protection requirements for data centers.Download
HF2690 - Data center water/energy use reporting and tariffsLegislationdatacenterbans.comRequires reporting and tariff requirements for water and energy use by data centers.Download
Ohio Supreme Court Case No. 2025-1458 - Appeal of AEP Data Center TariffDocumentsupremecourt.ohio.govOhio Manufacturers' Association appeal (filed Nov 2025) challenging PUCO's approval of the AEP data center tariff (24-0508-EL-ATA) as based on unreasonable assumptions. Still pending.Download
SB374 - Prohibit new data center sales tax exemptionsLegislationlegiscan.comIn committee Mar 25, 2026Description comingDownload
HB710 - Prohibit public support, limit construction of, new data centersLegislationlegiscan.comIn committee Feb 25, 2026Description comingDownload
HB646 - Create the Data Center Study CommissionLegislationlegiscan.comIn committee Jun 10, 2026Description comingDownload
HB999 - Prohibit property tax exemptions for data centersLegislationlegiscan.comIntroduced Sep 2, 2026Description comingDownload
HB957 - Prohibit new data center sales tax exemptions from being grantedLegislationlegiscan.comIn committee Jun 3, 2026Description comingDownload
SB381 - Require PUCO approval to connect data centers to electrical gridLegislationlegiscan.comIn committee Mar 25, 2026Description comingDownload

Site details

Operator: Ardent Technologies (TAC Data Centers)
County: Clinton County, OH
Capacity: 500 MW
Address: Wilmington, OH
Stage: Planned

Size: not on file

Map

Photos

Google Street View · nearby land, not the exact site
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What we learned about who pays if Ohio data-center projects don’t materializecleveland.com
An $8 billion Treasury break helped Meta’s tax rate hit 2%. Senators want data center tax answersFortune
The states with the fewest and most data centers, rankedBusiness Insider
Finns Are Seething After Google Illegally Toppled 250,000 Trees for a Data CenterMother Jones
Google offer to pay others to help data center powerArkansas Online
This bill would make data centers pay their own way for powerSalt Lake City Deseret News