The U.S. government has ordered an immediate pause on all large-scale offshore wind projects currently under construction, marking a major escalation in the Trump administration’s efforts to slow renewable energy development. The directive, issued by the U.S. Department of the Interior, halts progress on five major offshore wind projects along the U.S. East Coast. Together, the projects represent nearly 6 gigawatts of planned generating capacity and were expected to begin commercial operations between 2026 and 2027.

The suspension impacts several of the most advanced offshore wind developments in the country, including Vineyard Wind 1, Revolution Wind, Coastal Virginia Offshore Wind, as well as Sunrise Wind and Empire Wind 1. Most of these projects are already in late-stage construction and had secured all major federal and state approvals prior to the order.

According to the Interior Department, the pause is intended to allow time for additional evaluation of “national security risks” allegedly associated with offshore wind infrastructure. The agency pointed to classified assessments prepared by the U.S. Department of Defense, as well as earlier unclassified studies suggesting that large turbine blades and reflective towers can interfere with radar systems by creating clutter and false targets. Officials said the review period will be used to explore whether any of the identified risks can be mitigated in coordination with project developers and state governments.

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Energy companies involved in the projects strongly disputed the administration’s rationale. Dominion Energy, which is developing the 2.6 GW Coastal Virginia Offshore Wind project, warned that even a temporary halt could undermine grid stability in the Mid-Atlantic region. In a statement, the company said stopping construction would threaten power supply for critical infrastructure, including military facilities, data centers, and civilian demand, while also driving up energy costs and putting thousands of jobs at risk. Developers of other projects made similar arguments. Equinor, the leaseholder for Empire Wind, said it had already worked extensively with federal defense agencies during the permitting process. Ørsted, which is developing Revolution Wind and Sunrise Wind, emphasized that both projects underwent years of environmental and national security reviews before receiving approval.

The latest order follows a series of earlier attempts by the Trump administration to slow or block wind energy development. On the president’s first day back in office, a memorandum was issued freezing all federal approvals for wind projects, a move later struck down by a federal court as unlawful. Earlier this year, the administration also temporarily halted Empire Wind, arguing that its approval had been rushed under the previous administration. That decision was reversed in May, making the current blanket pause the most sweeping action taken so far.

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New York Governor Kathy Hochul criticized the decision sharply, calling it another blow to jobs and clean energy investment. She questioned the administration’s national security claims and argued that reducing reliance on foreign fossil fuels should itself be viewed as a security priority. New York officials estimate that offshore wind projects scheduled to come online next year would supply electricity to hundreds of thousands of homes across the state, supporting long-term energy affordability and reliability.

The freeze introduces fresh uncertainty into the U.S. offshore wind market at a moment when developers were preparing to move from construction to generation. With billions of dollars already invested and supply chains in motion, industry observers warn that prolonged delays could damage investor confidence and slow the country’s clean energy transition. For now, construction activity remains on hold while federal agencies reassess projects that were previously deemed ready to deliver power to the grid.

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