ISO New England on Trump administration’s sinks five East Coast offshore wind farms. War on renewable energy escalates.

The Trump administration paused five offshore wind farms Monday, hobbling $25 billion in investments in clean, renewable energy. The decision, attributed to unexplained national security concerns, deals what looks like a fatal blow to the nascent offshore wind industry.

ISO New England, which oversees power generation and distribution in the six state region, issued a statement on Monday, which included:

Through the region’s wholesale markets, both Vineyard Wind and Revolution Wind have committed to helping meet New England’s demand for electricity. Both projects are included in our near-term and future modeling and analyses to ensure adequate electricity for New England.   

These projects are particularly important to system reliability in the winter when offshore wind output is highest and other forms of fuel supply are constrained. While ISO-NE forecasts enough generation capacity is available for the current season, canceling or delaying these projects will increase costs and risks to reliability in our region.   

Beyond increasing risk to reliability, delays of new generating resources also will adversely affect New England’s economy and industrial growth, including potential future data centers. 

As we stated in August, New England must maintain and add to its energy infrastructure. Unpredictable risks and threats to resources — regardless of technology — that have made significant capital investments, secured necessary permits, and are close to completion will stifle future investments, increase costs to consumers, and undermine the power grid’s reliability and the region’s economy now and in the future. Given the prior extensive review of these projects, ISO New England hopes that to the extent there are any relevant national security concerns, they can be resolved quickly.  

The decision today deals a serious blow to efforts to provide a reliable source of power to Connecticut as a reconfigured state regulatory agency begins to cope with converging challenges.

Published December 22, 2025.