Hilliard Ends Fight Over Amazon Data-Center Fuel Cells, Still Plans Air Monitoring

Hilliard is stepping back from a legal fight it never expected to win easily, while trying not to sound like it is waving the white flag on air quality.

City leaders announced around September 15 and 16, 2026, that Hilliard had withdrawn its appeal before the Ohio Environmental Review Appeals Commission challenging an Ohio EPA permit for a solid-oxide fuel-cell plant at the Amazon Web Services campus off Scioto Darby Road. The facility is sized at about 72.9 megawatts. Council President Emily Cole was careful with the tone: pulling the appeal is not an endorsement of the project.

The city's read is blunt. State law leaves local governments with little room to block or condition large electric generation sites once state regulators clear them. Hilliard says it still owed residents every option it could pursue. After outside counsel, independent air reviews, and a hard look at what ERAC could actually change, officials decided continued litigation was unlikely to deliver the outcome many neighbors wanted.

What is being built near homes

The fuel-cell array is not a traditional power plant with tall stacks and open flames. AEP Ohio (Ohio Power Company) is constructing, owning, and operating hundreds of Bloom Energy solid-oxide units on a slice of Amazon's Scioto Darby campus. The setup is designed to feed onsite electricity demand for the data center, not to sell power back onto the broader grid.

That distinction matters to planners and less so to people living across the street. Residents have raised health questions about emissions from natural-gas-fed cells operating close to neighborhoods. The campus sits in a busy western Franklin County corridor near Interstate 270, where data center growth and residential streets already share thin buffers.

Hilliard's own materials note that AEP has pointed to limited regional electrical capacity as a reason the campus needs onsite generation while longer-term transmission solutions catch up.

Air studies, then a monitoring pledge

Before dropping the appeal, the city pressed for clearer air-impact numbers. Bloom Energy and AEP produced a dispersion study in early 2026 looking at carbon dioxide from the proposed cells. Hilliard later hired Pinyon Environmental for an independent check of that work. Together, the reviews concluded that modeled impacts should stay below levels generally treated as health thresholds.

City officials stress that modeling is not the same as lived experience once units start running. Hilliard plans air quality testing after startup so actual readings can be compared with the projections. That post-operation monitoring is one of the concrete leftovers from a legal path that otherwise closed.

Cole has framed the process as producing transparency and scientific review even without a courtroom win, while still arguing that Ohio's rules leave cities and residents with too little say over major generation projects placed inside their communities.

Why local zoning ran out of road

Under Ohio Revised Code provisions that hand exclusive jurisdiction to the Ohio Power Siting Board for electric generation facilities above 50 megawatts, local governments generally cannot require their own permits or pile on conditions once an OPSB certificate is in place. AEP Ohio withdrew a Planning and Zoning Commission application in 2025 citing that state framework.

Outside counsel told Hilliard the grounds available in an ERAC appeal are narrow. After stacking that legal advice against the air studies, council and the administration concluded they had exhausted realistic remedies under current law. The EPA permit challenge is over. The fuel cells' path forward now runs through state approvals already in hand and construction timelines set by the utilities and Amazon.

Norwich Township and emergency response

One local lane that remains open is safety planning. Hilliard says it supports Norwich Township's review of emergency response for the fuel-cell installation and the natural gas service that will feed it. That work covers site drawings, shutoff and emergency shutdown procedures, pre-incident planning, and training for first responders.

AEP Ohio has said project drawings will go to area fire departments, that field staff will walk inspectors through the site, and that fire prevention and emergency response training will be available. Hilliard expects those commitments to stick and has offered staff support to Norwich Township as the planning continues.

What this means for the corridor

For neighbors who hoped an appeal would stop or reshape the project, the city's decision is a clear turn toward acceptance of limited leverage. For Hilliard's elected officials, it is a public acknowledgment that state rules, not city zoning, now drive the outcome.

The next local tests are practical rather than legal: whether post-startup air monitoring happens on schedule, whether the numbers match the models, and whether township and city responders get the access and training they say they need before the cells go live. The appeal is done. The air and safety questions are not.