New Energy Going Global: U.S. Tariffs Illegal, But Refunds May Take 500 Years?

Ruling and immediate fallout

The U.S. Supreme Court has dealt a major legal blow to last year’s presidential tariffs, ruling 6–3 that President Trump exceeded his authority under the International Emergency Economic Powers Act (IEEPA) when he unilaterally imposed broad import duties. The decision—written by Chief Justice John G. Roberts—found that the power to levy tariffs belongs to Congress, not the executive. It has been reported that more than 1,000 companies have already sued to recover duties, and that the illegal levies cover roughly $166 billion and affect some 330,000 importers across millions of shipments.

Among the plaintiffs is Chinese electric vehicle and storage firm BYD (比亚迪). BYD’s four U.S. subsidiaries reportedly filed suit in late January; the company operates a manufacturing facility in Lancaster, California, employing more than 750 unionized workers and selling electric buses and energy-storage systems in municipal and utility markets. For Chinese new-energy firms, the ruling is a legal “reset” — but does it translate into cash in hand?

Refund maze and geopolitical ripples

That is where the story turns Kafkaesque. It has been reported that U.S. Customs and Border Protection (CBP) told courts its existing systems cannot cope with the volume of refund claims. Using CBP’s math, processing every claim under current procedures would take some 4,431,161 work‑hours—about 506 years. It has also been reported that CBP is building a new online portal (reportedly 40% complete) and hopes to launch it in roughly 45 days, but officials gave no firm timetable for actual disbursements. Meanwhile, interest on delayed refunds is mounting; it has been reported that every month of delay costs U.S. taxpayers roughly $650 million in added interest.

The ruling has immediate geopolitical implications. Reportedly enraged, former President Trump warned of fresh tariffs and the administration has pivoted to launching new “Section 301” investigations targeting 16 economies including the EU, Canada, Japan, South Korea and China. For Chinese clean‑energy exporters, the court victory is a legal win but a reminder: trade relief on paper may be slow to materialize, and Washington’s trade playbook remains volatile. Global manufacturers and investors will be asking a simple question: who ultimately pays the political price for these policy whiplashes—companies, consumers, or taxpayers?