Inverter ban 2026: 14 homeowner questions answered

Three months in, the FCC’s foreign inverter ban still confuses people. Here are straight answers to the questions we hear most, including what changed in October.

Short answer: if you already own solar, nothing changes. Your inverter stays legal, keeps running and can still get firmware updates. The ban blocks new foreign-made, grid-tied, network-capable inverter models from getting FCC approval. It matters most for what you buy next and for replacement parts years from now.

We first covered the ruling in September (the FCC inverter ruling, explained). Since then the FCC has issued its first exemptions, and the questions have gotten more specific. Here they are.

1. What exactly did the FCC do?

On July 28, 2026, the FCC added foreign-produced power inverters to its Covered List, its list of equipment considered a national security risk. Equipment on that list can’t get the FCC authorization it needs to be imported, marketed or sold in the US. On August 20, after a second national security determination, the FCC rewrote the entry to narrow and clarify what counts.

2. Is this only about Chinese inverters?

No. The rule is country-neutral. Any inverter made outside the US is “foreign-produced,” whatever the brand’s nationality. A US brand built overseas is covered. A foreign brand that builds enough in the US can qualify as domestic.

3. Is my existing inverter now illegal?

No. The FCC said the rule does not affect a consumer’s continued use of devices they already acquired. Models that held FCC authorization before July 28 can still be imported, sold, installed and operated.

4. Will my inverter keep getting firmware updates?

Yes, for now. A blanket FCC waiver lets previously authorized models receive software and firmware updates. It does not cover hardware changes. Published summaries put the waiver’s end at January 1, 2029, unless the FCC extends it.

5. Exactly which inverters are covered?

After the August 20 change, the rule covers an inverter that does both of these:

Converts DC to AC to run in parallel with the utility (a “utility-interactive” inverter, as defined in UL 1741). Bidirectional battery inverters count.
Has, or is “designed, equipped, or configured to accept,” a part for remote communication, control or monitoring over Wi-Fi, cellular, Bluetooth, Ethernet or a similar link.

6. Does it cover off-grid inverters?

Inverters that are not utility-interactive under UL 1741 appear to fall outside the revised listing. The Department of War found they don’t pose the identified risk. A hybrid inverter that can grid-tie is still utility-interactive, even if you run it off-grid.

7. What if I just don’t connect it to Wi-Fi?

That doesn’t change anything. The test is what the inverter is designed to accept, not how you set it up. A model with an Ethernet port or a slot for an optional monitoring module still meets the connectivity test. Wired connections were added explicitly in August.

8. Which inverters are exempt?

There are three routes. Any one of them is enough:

Route	What it means
45X-eligible	Qualifies for the federal 45X advanced manufacturing credit (built in the US without help from a “prohibited foreign entity”)
Buy American	Made in the US, with US components above 65% of component cost through 2028 and 75% from 2029
Conditional Approval	Approved by the Department of War or Homeland Security after an ownership, supply-chain and onshoring review

9. Has anyone gotten a Conditional Approval yet?

Yes, starting in October. Between October 2 and October 23 the FCC announced inverter approvals for GE Grid Solutions, Dynapower, Power Electronics, Bloom Energy and Hitachi Energy. These approvals have no expiration date as long as each company follows its onshoring plan. Every one of them is utility-scale or commercial equipment. No home inverter brand had been approved as of late October.

10. Which home inverters are made in the US?

Enphase assembles microinverters in the US and closed its Mexico line. SolarEdge ships US-made inverters from Austin, Texas and from Florida. Tesla builds Powerwall 3 and its inverter in the US. Made in the US is a good sign, but the legal test is 45X or Buy American, so ask for the specific model’s status in writing.

11. Can I still buy an EG4, Hoymiles or other imported model?

Yes, if that exact model held FCC authorization before July 28 and the seller has stock. Hoymiles and APsystems have said their current lines were authorized before the cutoff. Check the model number, not the brand. A newer version of the same product needs its own authorization.

12. Does it affect home batteries?

It affects the inverter, wherever it sits. An all-in-one battery with a built-in grid-tied inverter falls under the same test. A plain DC battery that connects to a separate inverter doesn’t convert anything to AC, so the inverter is what matters.

13. What happens when my inverter fails under warranty?

Replacing it with the same pre-authorized model is allowed. The risk is years out: when a manufacturer stops making that model, its newer replacement must pass one of the three exemption routes. If it can’t, you could be forced to switch platforms, which can mean new wiring or a new battery. Ask your manufacturer how they plan to support your model.

14. Will prices go up?

Probably, over time. Analysts quoted in July expected little effect “in the next couple of months” but more within a year or so, as approved models age out. Domestic factories still can’t meet all of US demand.

What to do nowOwn a system? Leave it alone and keep your invoice with the model number. Buying? Get the inverter’s country of manufacture and its 45X or Buy American status in writing, and favor a platform you can still replace in ten years.

Not sure which platform fits your house? The free design preview sizes your system around US-built equipment. If you already own an EG4, our install guides still cover it.

Quick answers

Is my existing solar inverter illegal now?

No. Inverters you already own, and models that held FCC authorization before July 28, 2026, remain legal to sell, install and use.

Is the FCC inverter ban only for Chinese inverters?

No. It covers any grid-tied, network-capable inverter made outside the US, regardless of the brand’s nationality.

Will my inverter still get firmware updates?

Yes. An FCC waiver allows software and firmware updates for previously authorized models, reported to run until January 1, 2029 unless extended.

Are off-grid inverters covered by the ban?

Inverters that are not utility-interactive under UL 1741 appear to fall outside the revised August 20 listing. Hybrid inverters that can grid-tie are covered.

Which inverters are exempt from the ban?

Inverters eligible for the 45X manufacturing credit, those meeting the Buy American domestic content test, and those granted Conditional Approval by the Department of War or Homeland Security.

The inverter ban: 14 questions homeowners are asking, answered