The agency exempted off grid units after the Defense Department said they don't threaten the public grid. Grid tied and hybrid inverters, plus any wired unit with ethernet, remain banned.
Your portable power station is probably safe to import under the FCC's revised foreign-inverter ban. But if it can feed power back to the grid, or hook up over ethernet, it isn't.
The FCC amended its July foreign-inverter ban this month, carving out units the Defense Department defines as "non-utility-interactive." Those are devices incapable of connecting to the utility grid. An inverter is the small electrical box that converts DC power from a battery or solar panel into the AC current household appliances use.
Practical effect: portable power stations, true off-grid solar kits, and most consumer battery gear from foreign vendors can still be sold in the US. The DoD's finding, cited in the FCC's fact sheet, is that off-grid inverters "generally do not pose risk to the public utility grid."
Three categories stay banned. Grid-tied (utility-interactive) inverters that can export power to the public network. Modern hybrid inverters that can run in on-grid and off-grid mode, even when marketed as "off-grid ready." And the DoD has expanded the rule to cover any foreign-made wired inverter that also supports ethernet, on top of the original wireless scope. Existing US inventory is exempt; the rule is not retroactive.
"DIY and budget solar markets rely heavily on these categories, so the carve-out matters for that segment," said Joe Shangraw of Wood Mackenzie, per PCMag.
The edge case: the Anker Solix F3800 Plus can be configured with a solar panel to feed power back to the grid, landing it in the still-banned hybrid bucket despite its "portable" label.