Columbus data center filings, Q3 2026: 2,530 MW of gas plants for data centers await the state while towns vote to limit them.

The small hollow grey dots are data centers operating today, from the public PeeringDB facility list, each linked to its PeeringDB record. An operating building is context for the filings and is in no count on this page.

Two series, never added together: City of Columbus permits and site plans, Jerome Township zoning certificates and dated planning cases, and power plant applications to the Ohio Power Siting Board, dated by the application. A declared value is the filer's own estimate and is never added to another.

Ohio EPA permits for the generators and power plants of new data centers. 3 fall in Q3 2026. They are listed, not counted, because the records show when a permit was drafted or issued, not when it was applied for. A generator rating is backup plant, not capacity a customer can use.

1. 1 Jul 2026Dublin council: Data centers dropped as a use in the West Innovation District, 6-1 (action summary).
2. 7 Jul 2026New Albany council: Data centers barred as a primary use on 22.6 rezoned acres, 7-0 (minutes).
3. 7 Jul 2026Marysville planning commission: Data centers made a conditional use in Marysville East, 7-0, a recommendation (minutes).
4. 15 Jul 2026Sunbury council: Charter ban on data centers over 25 MW sent to the ballot (ordinance).
5. 22 Jul 2026Prairie Township trustees: Moratorium extended to 15 April 2027, 3-0 (minutes).
6. 3 Aug 2026Pataskala council: Charter ban on data centers over 25 MW sent to the ballot, 4-0 (ordinance).
7. 5 Aug 2026Public Utilities Commission of Ohio: Data centers returning to AEP Ohio's standard service give 180 days' notice and bear the power cost (release, docket).
8. 7 Aug 2026Supreme Court of Ohio: Ashville's referendum on its EdgeConneX resolution ordered to the board of elections (opinion).
9. 10 Aug 2026Plain City council: One-year moratorium on data center applications (minutes).
10. 25 Aug 2026Pataskala council: Aligned Data Centers' plan disapproved, 7-0 (minutes).
11. 1 Sep 2026Johnstown council: Tax abatement area covering data center buildings widened by about 170 acres (ordinance).
12. 3 Sep 2026Grove City council: Public-vote amendment for projects over 20 MW sent to the ballot, 7-0, with a resolution opposing it (minutes).
13. 10 Sep 2026Johnstown council: Charter ban on data centers set for a 5 January 2027 election (ordinance).
14. 10 Sep 2026Regional planning commission: Plats extended for the Thomas and Starkey complexes, Jerome Township (minutes).
15. 21 Sep 2026Grove City council: Innovation district created without data processing among its uses, 7-0 (minutes).
16. 21 Sep 2026Heath council: Charter ban petitions rejected for too few signatures (minutes).
17. 28 Sep 2026Columbus council: Peak rates for large users, data centers named, due by 26 October, 9-0 (ordinance, minutes).

Press reports, planning cases with no filing date and records outside the counting rule. None of these is in the counts above.

• Harvey Farms, Etna Township. A 397.3-acre rezoning for "a 397.3-acre data center facility", tabled twice by county planners (staff report). Its filing date is not in the records.
• Aligned Data Centers, Pataskala. Three data center buildings on 89.41 acres, disapproved on 25 August (staff report). Filed in 2025 on a date not shown.
• Project Cosmos, Marysville. A data center exterior plan approved on 15 January 2025 (minutes). No filing date on record.
• Fairfield Energy Center, Millersport. A 1,300 MW gas plant for "a data center adjacent to the project site" (docket). No record names the data center.
• Neo Power, Jersey Township. A 500 MW gas plant applied for in June (docket). No record names a data center.
• Hartman Farms line, Hamilton Township, near Lockbourne. Power lines for a customer of up to 688 MW on Magellan LLC land (construction notice). The record does not say data center.
• Stream Data Centers, Grove City and Jackson Township. About 300 acres reported in the press. No local record names it.

Boundary. The ten counties of the Columbus metropolitan area as the federal government defines it: Delaware, Fairfield, Franklin, Hocking, Licking, Madison, Morrow, Perry, Pickaway and Union.

What is counted. Only work that adds data center buildings or capacity: new buildings and planning cases naming a data center, and power plants over 1 MW whose records name the data center they serve. Replacements, repairs, renewals and amendments do not count, nor do planning cases whose records give no filing date.

Counting. A site is one address or one campus and counts once in a quarter however many filings it makes. Meta's three power plants for its Sidecat campus are one site, and so are the Thomas and Starkey complexes in Jerome Township, which share an owner and a boundary. A power plant case is dated by its application, not the notice that opens its docket.