The FCC has restricted the import and sale of new foreign-made connected power inverters that fail to meet strict domestic content requirements, aiming to enhance national grid security.

Key Points

• The FCC mandate applies to any inverter with remote communication capabilities, such as Wi-Fi, cellular, or Bluetooth, that contains less than 65% US-manufactured content.
• Existing models with prior FCC authorization as of July 28 are grandfathered and remain legal for sale and installation.
• Manufacturers seeking approval for new foreign-produced models must petition the Department of Homeland Security or Department of War by January 1, 2028.
• The policy follows national security concerns regarding potential "kill switches" or undocumented communication hardware found in foreign-made power electronics.
• Domestic manufacturers like Enphase, SolarEdge, and Tesla saw stock price increases following the announcement, as the rule favors companies with US-based production facilities.

Why it Matters

This regulation significantly alters the supply chain for residential and off-grid solar markets by prioritizing domestic manufacturing over foreign imports. While intended to mitigate cybersecurity risks to the power grid, the policy may lead to higher consumer prices and reduced product variety for smaller solar and battery installations.