FCC Revises Inverter Control Rules: Two Compliance Paths Established

Key Regulatory Updates

On August 20, 2026, the U.S. Federal Communications Commission (FCC) issued DA-26-870, significantly revising the inverter control rules first proposed on July 28. The new rules establish two clear compliance paths for manufacturers exporting inverters to the United States:

Path 1: Direct Exemption (45X Tax Credit)

Inverters that qualify for the Section 45X Advanced Manufacturing Tax Credit are completely removed from the control list. The FCC explicitly states that manufacturer nationality is irrelevant for this exemption, meaning both U.S. and foreign manufacturers can qualify if they meet the 45X requirements.

Path 2: Controlled Category (Grid-Interactive + Remote)

Only grid-interactive inverters with remote networking capabilities fall under the revised control rules. The scope is significantly narrower than the original July proposal. Pure off-grid inverters, non-grid-connected units, and AC-DC rectifiers without networking features are explicitly excluded from any controls.

Industry Impact

This revision brings much-needed clarity to the solar and energy storage industry. The original July rules created uncertainty for manufacturers worldwide, as the broad language potentially covered all power conversion equipment. The August revision narrows the scope to only those inverters that pose genuine cybersecurity risks due to remote connectivity.

Off-grid solar inverters: Unconditionally exempt

Grid-tied inverters without remote monitoring: Unconditionally exempt

Grid-tied inverters with IoT/remote control: Subject to case-by-case review

Implications for SHENYUN

For SHENYUN's inverter product line targeting the U.S. market, this revision provides a clearer compliance roadmap:

Product Classification: Verify whether your inverters fall under the grid-interactive + remote networking category. Off-grid and non-connected products face no restrictions.

45X Qualification: If manufacturing processes or facilities qualify for the 45X Advanced Manufacturing Tax Credit, pursue this exemption path for automatic removal from controls.

Documentation: Ensure technical specifications clearly distinguish remote-capable models from standalone units to streamline customs and compliance verification.

The FCC's two-path approach balances national security concerns with practical trade considerations, offering Chinese manufacturers like SHENYUN a predictable framework for U.S. market access.