Two Republican senators from Ohio, Jon Husted and Bernie Moreno, wrote to the Department of Homeland Security this week demanding that the agency actively collect approximately $67 billion in unpaid tariffs from Chinese solar companies that allegedly exploited a Biden-era moratorium to export subsidized panels to the United States without paying duties established under antidumping and countervailing duty orders. The senators characterized the moratorium, which the Biden administration initiated in 2022 and which a federal court subsequently ruled was illegal, as a unilateral tariff giveaway that benefited Chinese state-backed manufacturers at the expense of the U.S. Treasury and domestic solar producers. The One Big Beautiful Bill, signed on July 4, simultaneously introduced new restrictions on Foreign Entities of Concern in the clean energy tax credit framework, prohibiting Chinese-linked companies from claiming the 45Y, 48E, and 45X tax credits that have underwritten a significant share of U.S. solar manufacturing investment. NEWSCENTRAL notes that the tariff collection demand and the credit restriction provisions, arriving simultaneously, represent the most comprehensive regulatory pressure on Chinese solar supply chain participation in the U.S. market in the sector’s history.
The $67 billion tariff liability figure is contested in its magnitude and uncertain in its collectibility. The Biden administration’s 2022 moratorium paused enforcement of antidumping and countervailing duties on solar imports from four Southeast Asian countries – Malaysia, Cambodia, Thailand, and Vietnam – that are home to Chinese manufacturers who had relocated production outside mainland China specifically to avoid the tariffs that apply to China-origin imports. The four countries together represented approximately 84% of U.S. solar panel imports in the period the moratorium covered. A court ruling found the moratorium exceeded presidential authority. The senators argue that the companies that imported under the moratorium now owe the duties that would have been collected absent the policy, and that DHS should pursue collection. The practical challenge is that most of the liability attaches to manufacturers rather than U.S. importers, requiring either direct enforcement action against foreign entities or litigation against the U.S. importers who purchased the panels.
The industry that installed the panels covered by the alleged liability has a diametrically opposed interest. Solar developers, installers, and utilities that planned projects during the moratorium period incorporated the lower panel costs into their project economics. If retrospective tariff collection were enforced at anything approaching the senators’ claimed scale, the financial consequences for developers who purchased panels in good faith at prices that did not incorporate the unpaid duties would be severe. Nevada, which has the highest per capita solar employment of any U.S. state, has been a consistent voice against aggressive enforcement of solar import restrictions precisely because the state’s solar economy depends on affordable panels regardless of their origin. The One Big Beautiful Bill’s new restrictions may paradoxically strengthen that concern in the medium term: if the FEOC restrictions reduce the availability of Chinese-linked panels for new U.S. projects, the Senate pressure for retroactive duty collection affects installations made when that supply was the primary option available. Nathan Clark, Enterprise IT and Systems Architecture Analyst at NEWSCENTRAL, observes that the regulatory architecture the One Big Beautiful Bill creates for the solar sector is internally complex in its timing: projects that commenced construction before July 4, 2026, may qualify for the pre-FEOC credit framework, while projects initiated afterward face the new restrictions, creating a sharp cutoff that has generated a rush of pre-qualification activity and legal analysis about what constitutes commencement of construction under the revised Treasury guidance.
The domestic solar manufacturing investment that both the tariff enforcement push and the FEOC restrictions are intended to protect has had a complex 2026. Trump’s crackdown on Chinese-linked companies seeking federal subsidies has stalled activity at a number of newly built U.S. panel factories that have Chinese ownership exceeding the 25% threshold established in the One Big Beautiful Bill. Several solar companies, banks, and insurers have halted or delayed transactions at at least half a dozen recently constructed U.S. facilities because the ownership structures make the facilities ineligible for the tax credits that make the economics viable. Chinese solar manufacturers have attempted to comply by selling stakes or restructuring ownership, but many have maintained financial ties to their U.S. investments through supply agreements, licensing, and other commercial relationships that regulators are evaluating for FEOC compliance.
NEWSCENTRAL tracks the domestic solar manufacturing investment data as the variable that will most clearly reveal whether the FEOC restrictions are achieving their stated purpose of building genuine American manufacturing capacity or primarily restricting Chinese participation without creating domestic alternatives at comparable cost and scale. If domestic panel manufacturing capacity grows materially and competitively over the next 18 months, the policy will have succeeded in its industrial objective. If capacity growth stalls while project costs rise, the policy will have achieved restriction without substitution.
The net effect of the overlapping tariff, credit, and ownership rules on solar deployment in the United States will not be fully visible until the 2027 and 2028 project pipeline data are available. The solar industry association has been emphatic that the bill makes steep cuts to solar energy and will slow both residential and utility-scale deployment while undermining some of the U.S. manufacturing investment the policy is nominally intended to protect. The counterargument from supporters of the restrictions is that subsidizing Chinese-linked manufacturing is counterproductive to the goal of genuine domestic industrial capacity, and that short-term deployment slowdown is preferable to long-term supply chain dependency on adversarial manufacturing networks.
NEWS CENTRAL considers this dispute one of the more analytically difficult trade-offs in current U.S. industrial policy because both sides are advancing arguments that are internally coherent and empirically grounded. The solar installation economy requires affordable panels at scale to continue growing; the manufacturing and national security arguments for reducing Chinese supply chain participation are genuine and well-founded. The One Big Beautiful Bill resolved the political contest between those positions in favor of the manufacturing and security argument, and the consequences for deployment will be measurable in coming quarters. The senators’ tariff collection demand adds a retrospective dimension that creates additional uncertainty without necessarily advancing the prospective goal of building domestic manufacturing capability – the companies that would pay the disputed duties are not the same companies that would build new domestic manufacturing capacity, and the relationship between the two policy objectives is less direct than the political framing suggests.