It’s been a week of whiplash for offshore wind.
On Monday, President Trump lifted his stop work order on Empire Wind, an 810-megawatt wind farm under construction south of Long Island that will deliver renewable power into New York’s grid. But by Thursday morning, Republicans in the House of Representatives had passed a budget bill that would scrap the subsidies that make projects like this possible.
The economics of building offshore wind in the U.S., at least during this nascent stage, are “entirely dependent” on tax credits, Marguerite Wells, the executive director of Alliance for Clean Energy New York, told me.
That being said, if the bill gets through the Senate and becomes law, Empire Wind may still be safe. The legislation would significantly narrow the window for projects to qualify for tax credits, requiring them to start construction by the end of this year and be operational by the end of 2028. Equinor, the company behind Empire Wind, maintains that it aims to reach commercial operations as soon as 2027. The four other offshore wind projects that are under construction in the U.S. — Sunrise Wind, also serving New York; Vineyard Wind, serving Massachusetts; Revolution Wind, serving Rhode Island and Connecticut; and Dominion Energy’s project in Virginia — are also expected to be completed before the cutoff.
Together, the five wind farms are expected to generate enough power for roughly 2.5 million homes and avoid more than 9 million tons of carbon emissions each year — similar to shutting down 23 natural gas-fired power plants.
Still, this would represent just a small fraction of the carbon-free energy eastern states are counting on offshore wind to provide. New York, for example, has a statutory goal of getting at least 9 gigawatts of power from the industry. Once Empire and Sunrise are completed, it will have just 1.7 gigawatts.
If the proposed changes to the tax credits are enacted, these five projects may be the last built in the U.S.
That’s not the case for solar farms or onshore wind, Oliver Metcalfe, head of wind research at BloombergNEF told me. They can still compete with fossil fuel generation — especially in the windiest and sunniest areas — without tax credits. That’s especially true in today’s environment of rising demand for power, since these projects have the additional benefit of being quick to build. The downside of losing the tax credits is, of course, that the power will cost marginally more than it otherwise would have.
For offshore wind farms to pencil out, however, states would have to pay a much higher price for the energy they produce. The tax credits knock off about a quarter of the price, Metcalfe said; without them, buyers will be back on the hook. “It’s likely that some either wouldn’t be willing to do that, or would dramatically decrease their ambition around the technology given the potential impacts it could have on ratepayers.”
Part of the reason offshore wind is so expensive is that the industry is still new in the U.S. We lack the supply chains, infrastructure, and experienced workforce built up over time in countries like China and the U.K. that have been able to bring costs down. That’s likely not going to change by the time these five projects are built, as they are all relying on European supply chains.
The Inflation Reduction Act spurred domestic manufacturers to begin developing supply chains to serve the next wave of projects, Wells told me. It gave renewable energy projects a 10-year runway to start construction to be eligible for the tax credits. “It was a long enough time window for companies to really invest, not just in the individual generation projects, but also manufacturing, supply chain, and labor chain,” she said.
Due to Trump’s attacks on the industry, the next wave of projects may not materialize, and those budding supply chains could go bust.
Trump put a freeze on offshore wind permitting and leasing on his first day in office, a move that 17 states are now challenging in court. A handful of projects are already fully permitted, but due to uncertainty around Trump’s tariffs — and now, around whether they’ll have access to the tax credits — they’re at a standstill.
“No one’s willing to back a new offshore wind project in today’s environment because there’s so much uncertainty around the future business case, the future subsidies, the future cost of equipment,” Metcalfe said.
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