Every solar panel and battery connected to the U.S. grid depends on inverters, which have historically been produced by mostly Chinese manufacturers. In May 2025, U.S. experts found undocumented radios embedded in some Chinese-made inverters, allowing remote access that bypasses firewalls. These hidden components pose a grave cyber-physical threat. Official responses have been ongoing, as SolarEdge achieved BABA compliance, and Florida utilities are sourcing non-Chinese hardware. Congress is continuing to push procurement bans. But the real opportunity can be seized by raising baseline security standards and coordinating with allies. The U.S. can reshape supply chains before the next threat emerges, not after. All News