Maine Could Be First U.S. State to Pause Data Center Development

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Written by John Egan for IIR News Intelligence (Sugar Land, Texas)

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Summary

The Maine legislature this week passed a bill pausing development of new data centers throughout the state until late 2027, the first state to do so. Maine's governor has not yet said if she will veto the bill, but it can become law without her signature.

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Maine Lawmakers Act on Data Center Concerns

This week the Maine House and Senate passed a measure, LD 307, that would pause for 18 months the development of new data centers in Maine that used over 20 megawatts (MW) of electricity. The measure also created a panel, the Maine Data Center Coordination Council, that would assess data centers' impact on power, water, land, communities and the environment in Maine.

According to Industrial Info Resources data, there are three active data center projects in Maine, worth a combined $1.62 billion.

David Pickering, Industrial Info Resources' vice president for research for the Industrial Manufacturing Industry, said: "This appears to be a state simply trying to take a step back so they can research a bit and truly examine the potential impact of data centers in their state. When it comes to data centers, 20 MW is really not all that large, and the delay is only until late 2027, which is not much time to examine things."

"It will be interesting to see what follows as the Maine panel completes its research and if other states follow in their footsteps," Pickering continued. "If many do, that could mean data center companies will start looking outside he US more often for the larger facilities. If that happens, some significantly large investment could be lost domestically."

Industrial Info Resources research has shown a broad and rising level of public concern about data centers, which could act to limit future domestic construction of those facilities. For more on that, see April 8, 2026, article - Data Center Opposition Growing Across States; December 8, 2025, article - U.S. Data Center Buildout Hits Obstacles--Speed Bumps or an Iceberg?; and October 22, 2025, article - State Regulators Set Up Guardrails on Aggressive Data Center Construction Plans.

On April 14, LD 307 passed the Maine House of Representatives by a 79-62 margin. Acting the same day, the Maine Senate also approved the measure in a 21-13 vote. The governor, Janet Mills (D), has not said whether she would sign or veto the measure. The Maine Constitution allows a bill passed by the legislature to become law in 10 days unless the governor vetoes it. As the bill was progressing, Mills sought an exemption for a planned data center to be built in an abandoned paper mill in the western Maine town of Jay, but the lawmakers did not include her wishes in the final measure. According to Industrial Info Resources data, the project has a total investment value of $1.5 billion. Subscribers to Industrial Info Resources' Global Market Intelligence (GMI) Project Database can click here to learn more about the project.

In Maine and Beyond, A Fierce Debate Over Data Centers

Progressive U.S. lawmakers Senator Bernie Sanders (I-Vermont) and Representative Alexandria Ocasio-Cortez (D-NY) last month introduced a measure to temporarily ban construction of new data centers across the U.S.

According to Industrial Info Resources database, U.S. Developers and technology companies have proposed building about 1,828 more data centers valued at about $1.44 trillion.

Data centers developers and technology firms, recognizing rising popular concerns, have created several political action committees (PACs) to fight proposed pauses or bans on new data centers at the local, state and federal levels. These groups are said to have collected several hundred million dollars in funds to lobby legislatures and run advertising in an effort to allay the concerns of local citizens and legislators about data centers' impact on electricity prices, water, the environment and local communities.

Data Centers, Jobs, Energy Costs and the Environment

The data center debate quickly found its way into electoral politics. Maine Governor Janet Mills (D), who is term-limited, is running in the Democratic primary for U.S. Senate in June. Polls show she is badly trailing the other candidate, Graham Platner. The winner will face incumbent Republican Susan Collins in the general election on November 3.

"I've said it before and I'll say it again, there needs to be a carveout for (the town of) Jay. Jay needs those jobs, with appropriate guardrails for conserving water resources, electricity resources," Mills said last week, according to a report in Maine-based Spectrum News. Neither she nor her spokesperson has directly said if the governor will veto the bill, which becomes law 10 days after it is passed if the governor does not veto it.

"I have mixed feelings about data centers, but look, we all use AI, cell phones every day," Mills said. At the same time, she added, "we need to be cognizant of the potential environmental issues," the Spectrum report continued

Maine has some of the country's highest electricity prices. The governor said she is primarily concerned with how data centers could affect electricity rates in the state. "We want data centers that will reduce electricity rates, if at all possible," Mills said. Outlays for electric generation and transmission and distribution infrastructure to serve data centers have been a major factor driving up electric prices. Data center-related capital spending has tended to be a large share of many utilities' actual and requested price increases, though state utility commissions are working to set guardrails to ensure data centers pay their own way.

Key Takeaways

• Maine lawmakers this week approved a first-in-the-nation bill creating an 18-month pause of development of new data centers that would use 20 megawatts or more of electricity.
• Maine Governor Janet Mills (D) has not said whether she will veto the bill.
• In Maine, a bill the legislature passes automatically becomes law 10 days after it is approved, unless the governor vetoes it.
• The Maine measure continues and expands the nationwide debate over data centers' effect on electricity prices, availability of water and the character of local communities.

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About Industrial Info Resources
Industrial Info Resources (IIR) is the leading provider of industrial market intelligence. Since 1983, IIR has provided comprehensive research, news and analysis on the industrial process, manufacturing and energy related industries. IIR's Global Market Intelligence (GMI) helps companies identify and pursue trends across multiple markets with access to real, qualified and validated plant and project opportunities. Across the world, Industrial Info Resources is tracking over 250,000 current and future projects worth $30.2 trillion (USD).