A Forescout Vedere Labs report found nearly 50 vulnerabilities across major inverter brands—over 80% rated critical (CVSS 9. 8–10)—that attackers could exploit once the backdoor was active. energy officials are reportedly reassessing the security risks posed by Chinese-made components in renewable energy infrastructure after discovering hidden communication devices inside certain solar inverters. A Reuters investigation, citing two individuals familiar with the matter, revealed. U. The transition to clean energy without sufficient domestic manufacturing options has made much of America's solar infrastructure reliant on parts made by Chinese firms. That has created a vulnerability that. In May 2025, Reuters disclosed that Chinese-made solar inverters were being delivered with undocumented cellular radios —SIM-card slots and RF circuitry secretly soldered onto their PCBs and omitted from every datasheet and SBOM.
[PDF Version]
Are Chinese solar power inverters connected to critical infrastructure grids?
U.S. energy officials have launched an investigation after discovering unauthorized communication equipment embedded within Chinese-manufactured solar power inverters connected to critical infrastructure grids across the country.
Do Chinese solar power inverters have undocumented communication devices?
However, undocumented communication devices have reportedly been found in some Chinese solar power inverters. And over the past nine months, such devices—including cellular radios—have also been found in some batteries from Chinese suppliers.
U.S. energy officials are reportedly reassessing the security risks posed by Chinese-made components in renewable energy infrastructure after discovering hidden communication devices inside certain solar inverters.
U.S. officials have discovered undisclosed communication devices on Chinese-made power inverters that were being used on solar panels, Reuters reported today based on anonymous sources within the federal government. The inverters are devices separate from power sources like solar arrays or batteries.