Large-scale infrastructure projects move fast, and all too often, governance does not. That gap is the messy place where friction lives, and it usually surfaces after the contracts are signed and the ground is broken. Ohio just gave it a different shape.
On April 3, 2026, the Ohio Ballot Board unanimously certified a proposed constitutional amendment that would ban the construction of data centers consuming more than 25 megawatts of electricity per month. The campaign behind it is run entirely by volunteers from rural southwest Ohio, organized in direct response to what they describe as development outpacing local control. They now have until July 1 to collect more than 413,000 valid signatures across at least 44 counties.
The odds are steep. Political observers across the spectrum have noted the timeline, the signature threshold, and the resource gap. But the amendment’s viability as a ballot measure is not the only thing worth tracking here. The more durable question is what it represents. Rural communities in one of the country’s most active data center markets have moved their concerns from public meetings into the state’s constitutional process. That is a different kind of signal than a protest or a petition.
Where the Amendment Came From
Ohio Residents for Responsible Development is a grassroots organization formed by residents of Brown and Adams County. They organized initially to oppose a local data center project with potential to alter the region’s rural character and strain local resources. The constitutional amendment would add Section 36a to Article II of the Ohio Constitution, prohibiting the construction of any data center with a peak load exceeding 25 megawatts per month.
That threshold is not a high bar in the current development environment. New large data centers commonly require 50 to 100 megawatts of electricity. Hyperscale facilities frequently exceed 200 to 500 megawatts. Setting the threshold at 25 megawatts would, as a practical matter, prohibit most contemporary commercial data center construction in the state.
The Ohio Attorney General’s office certified the petition’s title and summary in late March, though it noted that certification “should not be construed as an affirmation of the enforceability and constitutionality of the proposed amendment.” The Ballot Board then voted unanimously to leave the amendment intact rather than divide it, which would have required the campaign to gather double the signatures. That procedural decision mattered greatly, as organizers got to keep everything in one measure and proceed on their own terms.
The Killen Connection
The former Killen Power Plant site was a coal-fired facility that operated in Adams County for decades. As Clutch Justice previously documented, the site carries a worrisome contamination legacy common to facilities of this type, including coal ash deposits containing heavy metals and documented groundwater risk. The redevelopment narrative framing the site as a data center opportunity has moved faster than public transparency around those baseline conditions.
Adams County is the same county that produced this amendment campaign.
That is not incidental. The Killen site’s planned data center use would almost certainly exceed the 25-megawatt threshold the proposed amendment targets. The organizers behind the campaign cite the exact concerns, energy demand, land character, and the speed of development relative to public input, that Clutch Justice flagged in the February 2026 contamination risk analysis. These are not independent threads. They are the same governance failure from different angles.
The amendment does not name Killen. It does not need to. The conditions Killen represents are what the amendment is responding to.
Five Things This Changes, Whether or Not It Passes
Regulatory uncertainty rarely announces itself cleanly; it accumulates. Here is where the accumulation starts.
Political risk is no longer hypothetical
Up until this week, data center development in Ohio operated in a relatively permissive environment. State government has actively courted the industry. Governor DeWine overruled legislators during the 2026-2027 biennial budget process when they moved to eliminate a sales tax exemption on data center construction materials. The industry’s alignment with state government appeared stable.
A certified constitutional amendment campaign changes the political calculus. Elected officials who have publicly backed data center investment now have an active grassroots campaign arguing the opposite in the same election cycle. That is not a comfortable position, regardless of whether the amendment qualifies for the ballot.
Energy infrastructure is the pressure point
The amendment’s 25-megawatt threshold reflects something organizers understood practically before policymakers acknowledged it formally. Data centers do not simply use power. They reshape demand curves in ways that ripple through regional grid infrastructure. According to the Ohio Capital Journal, a large data center can consume as much electricity as 100,000 homes. When that demand concentrates in rural areas with existing grid constraints, the infrastructure cost question does not stay theoretical. Someone pays for transmission upgrades, grid stabilization, and reserve capacity. The amendment effort is, at its core, an argument about who bears that cost.
Transparency deficits accumulate into political liability
The Killen project’s voluntary moratorium, as documented in Clutch Justice’s February 2026 analysis, relies on discretion rather than enforceable procedural safeguards. The community may be operating under an assumption of protection that does not have legal force. That dynamic, a gap between what residents are told and what the record actually supports, is precisely the condition that organizes people. When residents in Adams and Brown County began researching what was happening in their region, they did not conclude that the process was too slow. They concluded that the process had not meaningfully included them. The amendment is the institutional response to that conclusion.
Economic development framing is losing its insulating effect
The Ohio Chamber of Commerce Research Foundation estimates the data center industry contributed more than $1 billion in state and local tax revenue in 2024, though only $260 million of that figure represented direct contributions. That economic case is real, and no longer sufficient as a standalone argument.
The counter-questions that communities are now asking have gotten sharper and more specific: who benefits, and over what timeline? What are the long-term infrastructure costs? What does this do to surrounding property values, water access, and grid reliability? What happens when the developer’s liability protections outlast the community’s patience? These are not hostile questions. They are the questions a functional approval process should answer before development begins, not after.
The copycat risk is real and underestimated
Ohio is currently home to approximately 200 data centers, ranking fifth nationally. Central Ohio, the greater Columbus area, has been one of the most active markets in the country for large-scale data center investment. The concentration of that investment in one region, combined with the energy and land use concerns it has generated, created perfect conditions for organized resistance.
If this campaign gathers meaningful public attention even without reaching the ballot, it provides a meaningful template. State legislatures in other high-concentration markets will see the model. Local governments already skeptical of large-scale approvals will have new political cover for tighter zoning. Developers will face a more fragmented, more contested regulatory landscape than they have been accustomed to. That is how a localized effort becomes a national constraint.
What the Opposition Will Argue
As always, one must follow the money. The amendment will face substantial opposition if it reaches the ballot. Trade and labor unions have economic interests in data center construction. Business stakeholders will cite the Ohio Chamber’s revenue figures. The state government’s alignment with the industry, demonstrated by DeWine’s intervention on the sales tax exemption, signals that the institutional opposition will be well-resourced.
The more substantive objection is that a constitutional ban is a blunt instrument. Zoning reform, energy use regulations, mandatory environmental review requirements, and enforceable public disclosure timelines could address the underlying concerns without foreclosing the industry entirely. That argument is legitimate. It is also the argument that communities make when they have been given meaningful access to the process upstream. In Adams County, they organized a constitutional campaign instead. That tells you something about how included they felt in the existing process.
Where Killen Stands Now
The Killen project is not stopped. No legal order bars construction. The voluntary moratorium documented in Clutch Justice’s February 2026 analysis remains the primary procedural constraint, and that moratorium relies on discretion rather than enforceable language.
What has changed is the environment the project is operating in. An active constitutional campaign rooted in the same county, built around the same concerns, and citing the same pattern of governance lag is now part of the public record surrounding data center development in Ohio. Investors, insurers, and regulators who track political risk will note it. That is not cancellation. It is the kind of uncertainty that reshapes timelines, elevates scrutiny, and raises the cost of moving forward without transparent process.
Projects that build accountability in early tend to weather this kind of environment. Projects that rely on the permissive window staying open do not always get that window back once it closes.
