Threats of the Trump administration targeting foreign inverters were first reported in late June by Reuters, which cited unnamed sources stating that a ban on Chinese-made inverters was in the works.
Last year, Reuters reported that technology experts investigating Chinese inverters had discovered communications devices that could be a security risk, citing anonymous sources. Later in 2025, Republicans in the House of Representatives wrote a letter to Commerce Secretary Howard Lutnick asking him to use the Commerce Department’s authority to “block future imports of Chinese equipment used in critical infrastructure nationwide.”
Chinese companies such as Sungrow and Chint Power Systems provide the majority of inverters for utility-scale clean energy and battery projects in the U.S., while U.S.-based Enphase Energy and Israel-based SolarEdge provide the majority of inverters for residential rooftop solar systems.
The FCC’s update targets any new inverters not made in the U.S., including those that U.S.-based companies produce in other countries. That could encompass inverters from other major providers to the solar market, such as Germany-based SMA Solar Technology and Austria-based Fronius International, as tracked by clean energy consultancy Wood Mackenzie.
If the FCC’s ban were to be expanded to include inverters currently being manufactured and sold for use in the U.S., the impact could be drastic. The U.S. built 50 gigawatts of new wind, solar, and battery capacity in 2025, more than any year prior, making up roughly 92% of new generating capacity. And the U.S. Energy Information Administration forecasts these trends will continue in 2026, with solar set to provide 51% of the new utility-scale electricity capacity, batteries 28%, and wind 14%.
In the immediate future, projects likely won’t have to abandon the inverters they’ve already purchased or plan to install, said Joe Shangraw, a solar research analyst at Wood Mackenzie. But he also cautioned that, as with any other industry, “eventually, currently approved products will become obsolete.”
That means inverter manufacturers will ultimately have to bring new products to market and submit them for FCC approval, at which time they’ll have to contend with the agency’s new rules. At that point, any inverters made outside the U.S. will be barred from sale and use unless they undergo a distinct conditional approval or waiver process, he said.
Shangraw also noted that the need to bring new products to the market could be accelerated if the federal government sets new requirements on cybersecurity, grid functionality, or other inverter capabilities.
“If that would require a significant hardware or software update, that would be something where you’d have to request some permissive change from the FCC, or ask for a totally new FCC ID” designating a new model of device for the agency’s review, he said. “So it’s certainly relevant and impactful — probably not in the next couple of months but in the next year or so.”
This growing uncertainty over the federal government’s classification of foreign-made inverters could increase industry interest in securing domestic inverter supplies, he said. On that front, “the storage space looks a lot healthier,” with companies such as U.S.-based EPC Power and Tesla operating significant domestic manufacturing capacity, and others such as Spain-based Power Electronics scaling up U.S. manufacturing.
Residential solar inverters are “in a good place,” Shangraw said, with SolarEdge, Enphase, and Tesla providing about 80% of the U.S. market needs. But the domestic manufacturing capacity for solar inverters for utility-, commercial-, and industrial-scale projects is less clear, he said, given that Chinese inverter makers hold about 60% of U.S. market share in that sector.
Large-scale solar developers could hope to earn waivers from the FCC on foreign-made inverters from non-Chinese companies such as SMA and Power Electronics, he noted. They could also anticipate expanded domestic manufacturing from U.S.-based Nextpower, which is acquiring the inverter and power conversion business of Spain-based Zigor and its U.S. subsidiary Apex Power; or from GE Vernova, which has opened an inverter factory in Pittsburgh and could expand capacity there, he said.
“The main thing is, we don’t know how impactful this is until we learn a bit more about the timeline for when these actual changes to the requirements” for existing inverters might occur that would “force companies to release new products,” he said. “I’d say if this was a hard deadline, and if there were no new imports allowed, we’d be in trouble.”
