Key Takeaways

• Certification: On March 26, 2026, Ohio Attorney General Dave Yost, through the attorney general’s office, certified language for a proposed constitutional amendment that would ban data centers by prohibiting the construction of new data centers larger than 25 megawatts statewide.
• 25 MW Cap: The 25 MW cap would effectively block most modern cloud and artificial intelligence facilities, as modern facilities now routinely require 100-300 MW or more.
• Signature Requirement: The group’s petition by Ohio Residents for Responsible Development must secure over 413,000 valid signatures from at least 44 counties by July 1, 2026, to reach the November ballot.
• Community Concerns: Rural community concerns over power, water usage, and few permanent jobs are driving support, while economic development advocates warn the ban could create a statewide moratorium on large data center construction and a very competitive disadvantage.
• Industry Impact: ABC Ohio Valley members may see shifts in project pipelines, utility planning, and commercial construction opportunities if this ballot measure passes.

News-Driven Introduction: A Local Fight Becomes a Statewide Policy Battle

Ohio’s proposed data center ban has cleared its first legal hurdle. After Attorney General Dave Yost certified the petition summary as containing fair and truthful statements, this proposed amendment moves from concept to an active constitutional amendment campaign that could reshape the state’s economy, with the state’s office overseeing the process.

This article is intended for contractors, developers, and industry stakeholders seeking to understand the implications of the proposed Ohio data center ban. The topic is critical for these audiences because the outcome will directly affect commercial and industrial construction opportunities, project pipelines, and the broader economic landscape in Ohio.

A data center is a facility that houses computer systems and associated components. The proposed amendment would prohibit new data centers that use more than 25 megawatts of electricity per month—a threshold that captures the bulk of today’s big data centers powering cloud computing and artificial intelligence applications.

What began as scattered local moratoriums in rural and industrial areas seeking to protect growth has evolved into a coordinated statewide effort. At least 15-18 Ohio communities have enacted local moratoriums on data center projects due to environmental and community concerns, reflecting a shift toward letting communities decide on data center development. For ABC Ohio Valley members, the outcome will directly impact commercial and industrial construction work across Ohio.

What the Proposed Amendment Would Actually Do

The proposed ballot measure would ban new data centers with power demands exceeding 25 megawatts anywhere in Ohio—creating a statewide ceiling on facility size and restricting future data center development.

To put this in perspective: 25 MW roughly equals the electricity consumption of 20,000 to 25,000 homes. Meanwhile, huge data centers driven by artificial intelligence and cloud computing now routinely demand 100-300 MW per site. The planned facility in Piketon, southern Ohio, alone was proposed to have 10 gigawatts of capacity. This amendment would directly impact new projects of this scale, potentially halting or restricting their construction.

The amendment focuses only on new construction, not on retroactive shutdowns of existing sites. However, expansions pushing facilities above the threshold could face prohibition—creating potential ambiguities for judicial interpretation. There are also growing concerns about energy land, as large data centers require significant electricity and land resources, which can strain local infrastructure and impact community planning.

How the Initiative Reached This Point

The proposal originated with five southwest Ohio residents, including Georgetown attorney Austin Baurichter from Brown County, who formed Ohio Residents for Responsible Development in response to specific projects proposed in Adams County, Clermont County, and the broader Cincinnati-Dayton region.

At least 15-18 Ohio communities have enacted local moratoriums on new data center projects due to environmental and community concerns, with local officials seeking to study the impacts on infrastructure, water, and energy resources before allowing further development.

The timeline accelerated quickly:

• 2024-2025: Township-level moratoriums spread through places like Hilliard, New Albany, Dublin, and Sunbury
• Early 2026: Petition filed with the Attorney General’s office for review
• March 26, 2026: Yost certified the group’s petition as fair and truthful

After certification, the Ohio Ballot Board must confirm that the proposal constitutes a single constitutional issue before organizers can officially begin collecting signatures.

Signature Requirements and the Road to the November Ballot

Organizers face a substantial threshold: 413,487 valid signatures from registered voters across at least 44 of Ohio’s 88 counties by July 1, 2026.

Campaign leaders are targeting 650,000-700,000 raw signatures to buffer against invalidations. Their strategy includes county captains, signature stations at community events, and rural voter outreach.

If requirements are met, Ohio voters would decide the measure’s fate on the November ballot.

Grassroots Concerns vs. Economic Arguments

Large data centers can use as much electricity as 20,000-25,000 homes and consume 1–5 million gallons of water daily, which contributes to local infrastructure strain and pollution concerns. These factors have fueled debate between rural residents and industry advocates.

Rural Resident Concerns

• Electricity Strain: Electricity strain on grids and higher power prices, as data centers consume a significant amount of electricity—one large data center can use as much energy as 20,000-25,000 residential homes.
• Water Usage: Water usage concerns for cooling systems, with data centers consuming 1–5 million gallons of water daily, contributing to pollution and prompting concerns over potential infrastructure strain.
• Loss of Farmland and Noise: Loss of farmland and noise pollution from 24/7 operations.
• Limited Job Creation: Few permanent jobs compared to manufacturing facilities.

Industry and Coalition Arguments

• Economic Role: The data center industry plays a crucial role in Ohio’s economy, supporting thousands of high-wage jobs and driving innovation.
• Local Economic Support: Data centers support local economies by creating jobs and generating significant tax revenue, helping modernize infrastructure and strengthen communities.
• GDP and Tax Revenue: $9.9 billion contribution to the state’s GDP in 2023 and over $931 million in state and local taxes annually.
• Development Opportunity: Data centers represent a major development opportunity for Ohio, attracting further investment and expanding economic growth.
• Critical Infrastructure: Critical infrastructure for healthcare, national competitiveness, and the modern economy.
• Tax Incentives: Tax incentives have been used to attract large-scale data center projects, further boosting economic development.
• Competitive Disadvantage: Warnings that restrictions would force Ohio into a competitive disadvantage, pushing investment to neighboring states and potentially forcing Ohio to halt or slow down data infrastructure expansion.
• Future Investment: Emphasizing the need to ensure Ohio remains competitive in attracting future data center investments.

The Ohio Chamber and economic development advocates argue the ban could undermine Ohio’s economic momentum and deprive local communities of critical tax revenue, while limiting further investment and job creation in the state.

Looking Ahead: How Industry Should Engage

Monitor Local Planning

Action: Monitor local planning commission agendas to stay informed about upcoming discussions and decisions regarding data center projects.

Participate in Public Hearings

Action: Participate in public hearings to voice concerns or support, and to understand the perspectives of local communities and officials.

Communicate with Local Officials

Action: Communicate with local officials about workforce impacts and the potential effects on local economies and job opportunities.

Coordinate Advocacy

Action: Coordinate advocacy through the association to ensure a unified industry response and to share resources and information.

This represents a defining moment for Ohio’s approach to growth, technology, and infrastructure limits. The outcome of the ballot measure will send a very clear message to the industry and policymakers about Ohio’s stance on data center development. Decisions made in the coming months will reverberate across the state’s commercial construction landscape for decades.

Frequently Asked Questions

FAQ

Does the proposed amendment affect existing data centers in Ohio?

As currently drafted, the amendment targets only new construction and does not mandate the shutdown of existing facilities. However, expansions exceeding 25 MW could be restricted pending final legal interpretation.

How might this interact with local moratoriums already in place?

If approved, the state constitutional amendment would prohibit large data centers statewide while allowing local communities to adopt stricter rules. Some existing moratoriums may become redundant.

Are similar limits being considered elsewhere?

As of early 2026, few states pursue outright size caps, though several debate tighter environmental reviews and incentive limits. Policymakers nationwide are watching Ohio closely.

What should multi-state contractors consider if the ban passes?

Firms with data center specialties may need to shift strategies toward neighboring states while tracking smaller-scale opportunities in Ohio. Reassess workforce development and capital investments accordingly.

How can ABC Ohio Valley members stay informed?

Follow ABC Ohio Valley legislative updates, attend policy briefings, monitor Ohio House activity, and engage in fact-based conversations with local officials and community stakeholders.