Iron Mountain Data Center - Ohio (OHS-1)

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