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Published September 11, 2026 · Updated September 11, 2026
The federal government has declared a national emergency over foreign-made equipment in the U.S. power grid. As of September 11, 2026 the order bans nothing on a Las Vegas or Henderson roof — and whether it ever reaches a home inverter or battery is a question the Department of Energy is asking out loud right now.
The 30-Second Version
Executive Order 14421 does not ban home solar or home batteries in Nevada. Signed August 26, 2026 and published as 91 FR 55995, it declares a national emergency over foreign-produced equipment in the bulk-power system — transmission at 69 kV and above plus the generation that keeps the system stable. Its own definition excludes local distribution, the layer that serves a neighborhood.
The rule that already touches home inverters is a different one. On July 28, 2026 the FCC put foreign-produced, grid-connected inverters on its Covered List — for new models only. Every inverter model authorized before that date, and every system already on a house, stays legal, per the FCC.
The open question is where the line will sit. The Department of Energy's September 9, 2026 request for information asks directly what thresholds should apply to grid-connected inverters and battery systems. Responses are due October 9, 2026; DOE's rules are due around December 24, 2026. Until then the honest answer for a rooftop system is: not covered today, and under consultation.
Executive Order 14421 is the August 26, 2026 presidential order that declares a national emergency over foreign-produced equipment in the U.S. bulk-power system — the high-voltage transmission and generation layer of the grid, not the wiring in a house.
It was published in the Federal Register on August 31, 2026 as 91 FR 55995, under the International Emergency Economic Powers Act and the National Emergencies Act.
The order does three things. First, it prohibits the acquisition, import, transfer or installation of foreign-produced bulk-power system electric equipment tied to a "Covered Foreign Entity" — but only for transactions started after August 26, 2026, and only once the Secretary of Energy determines that a transaction poses an undue or unacceptable risk of sabotage, remote access or supply disruption. Second, it lets the Secretary set conditions on such equipment that was already installed, after weighing reliability, safety and the availability of secure replacements. Third, it orders implementing rules within 120 days, which lands around December 24, 2026.
A "Covered Foreign Entity" means a country, or a person controlled by one, under a U.S. arms embargo or sanctions regime in the International Traffic in Arms Regulations (22 CFR 126.1), or one the Secretary of Energy designates. (Several early law-firm summaries cited the order as "14420"; the Federal Register number is 14421.)
No — not as of September 11, 2026. The order bars no product today, in a home or anywhere else, and three parts of its own text explain why a Las Vegas rooftop system is not what it is aimed at.
The first is procedure. Section 2(a) makes a transaction prohibited only after the Secretary of Energy, in coordination with several other agencies, determines that the specific equipment is tied to a Covered Foreign Entity and poses an undue or unacceptable risk. As of September 11, 2026 no such determination has been published; the Department of Energy is still collecting information (more on that below), and its rules are due around December 24, 2026.
The second is scope. Section 5(a) defines the bulk-power system as the facilities and control systems needed to operate an interconnected transmission network, plus the generation needed for reliability — and then draws the line explicitly:
"For the purpose of this order, this definition includes transmission lines rated at 69,000 volts (69 kV) or more, but does not include facilities used in the local distribution of electric energy." — Executive Order 14421, Section 5(a), 91 FR 55995 (Federal Register, August 31, 2026)
The lines that serve a Henderson or Summerlin street are NV Energy's local distribution layer. A rooftop system connects to that layer, behind a residential meter, under an interconnection agreement with NV Energy — not to a 69 kV transmission line.
The third part is the reason the question is not fully closed. Section 5(b) lists the equipment the order is concerned with, and among the reactors, substation transformers and protective relays it names "utility-scale and other grid-connected inverters" and "battery energy storage systems" — described as items used in bulk-power system substations, control rooms or generating stations. That phrase, "other grid-connected inverters," is why DOE has asked the industry where the line should sit.
Nothing on your roof is banned. Nothing on your roof has been ruled in, either. Both halves are true on the same day.
Under the order's own definition, no local distribution facility is part of the bulk-power system — and whether a grid-connected home inverter or battery counts as bulk-power "equipment" is a question the Department of Energy has formally put out for comment rather than answered.
On September 9, 2026 DOE published a request for information, 91 FR 57322, to inform how it implements the order. Written responses are due on or before October 9, 2026, and DOE will hold a public webinar on September 16, 2026, per the notice. Question A-2 is the one that matters for a homeowner:
"… What objective characteristics should DOE consider for utility-scale and other grid-connected inverters, battery energy storage systems (BESS), universal power systems (UPS) supporting critical infrastructure, small generators, backup generators, industrial control systems, and equipment used in facilities that combine transmission and distribution functions? Identify any equipment-specific voltage, capacity, connectivity, function, location, or criticality thresholds that would improve clarity without creating material security gaps." — U.S. Department of Energy, Request for Information, 91 FR 57322, question A-2, quoted in part (September 9, 2026)
Read that plainly: DOE is asking whether there should be a voltage, capacity or connectivity threshold below which a grid-connected inverter or battery falls outside the order. A 7-kilowatt rooftop inverter and a 100-megawatt utility battery are both "grid-connected"; the RFI is how DOE decides whether to treat them the same way. The notice is also careful about what it is not — it states that it "does not constitute a proposed rule, order, directive, license, or determination concerning any country, person, transaction, equipment, or vendor."
So the accurate status for a Nevada rooftop system, as of September 11, 2026, has two parts: the order's definition excludes the local distribution layer a home sits on, and DOE has not yet said whether or where a residential threshold will be drawn. Anyone telling you a home system is definitively "in" or definitively "out" is ahead of the document.
They are two separate federal actions, and the FCC's is the one that already touches the equipment on a house. The executive order works through the Department of Energy and reaches bulk-power equipment tied to a Covered Foreign Entity, once DOE makes risk determinations.
The FCC action works through equipment authorization — the certification most electronic devices need before they can be imported, marketed or sold in the U.S. On July 28, 2026 the FCC's Public Safety and Homeland Security Bureau added foreign-produced power inverters to its Covered List (Public Notice DA 26-786), which means a new foreign-produced inverter model generally cannot get that authorization unless the Department of War or Department of Homeland Security grants it a Conditional Approval. On August 20, 2026 the FCC narrowed the entry (DA 26-870) to utility-interactive inverters — the grid-parallel kind on a rooftop system — that have remote-communication capability, wired or wireless. Neither action names a homeowner as the person who has to do anything.
| Question | Executive Order 14421 (DOE) | FCC Covered List entry (FCC / DoW / DHS) |
|---|---|---|
| Issued | August 26, 2026; published 91 FR 55995 on August 31, 2026 | July 28, 2026 (DA 26-786); narrowed August 20, 2026 (DA 26-870) |
| What it reaches | Bulk-power system electric equipment: transmission at 69 kV and above, generation needed for reliability, and the listed equipment used in substations, control rooms and generating stations | New models of foreign-produced, utility-interactive inverters with remote-communication capability (Wi-Fi, cellular, Bluetooth, Ethernet or similar) |
| What it does today (Sept. 11, 2026) | Nothing yet in force against any product; prohibitions wait on DOE risk determinations and rules due around Dec. 24, 2026 | In force: new covered models cannot receive FCC equipment authorization without a Conditional Approval |
| Home rooftop inverters | Local distribution is excluded by definition; a residential threshold is under consultation (DOE RFI question A-2) | Covered for new models only; models authorized before July 28, 2026 stay legal to import, sell, install and use |
| Equipment already installed | DOE may set conditions on pre-existing bulk-power equipment after weighing reliability, safety and replacement availability | "This action does not affect any previously purchased devices" (FCC fact sheet); firmware updates allowed at least until Jan. 1, 2029 (DA 26-789) |
| What is "foreign-produced" | Not manufactured, produced or assembled in the United States | Not eligible for the section 45X manufacturing credit and not a domestic end product (domestic components above 65% of component cost through 2028, 75% from 2029) |
| Next dates | RFI responses Oct. 9, 2026; implementing rules ~Dec. 24, 2026 | Conditional Approval applications due Jan. 1, 2028 (per the Executive Branch guidance annex); update waiver runs to at least Jan. 1, 2029 (FCC DA 26-789) |
Sources: Federal Register 91 FR 55995 and 91 FR 57322; FCC fact sheet (July 28, 2026) and Public Notice DA 26-870 (August 20, 2026). Status as of September 11, 2026.
One more distinction is worth having straight. The FCC's entry is about connected inverters, including the hybrid inverter built into some battery systems; it does not list battery cells or packs. The executive order names "battery energy storage systems" in the bulk-power context. Neither document bans a home battery.
Nothing changes for equipment already on a house under either action, as of September 11, 2026. The FCC said so in plain words the day it acted:
"This action does not affect any previously purchased devices." — Federal Communications Commission, Fact Sheet: FCC Updates Covered List to Include Foreign-Produced Advanced Robotic Devices and Power Inverters (July 28, 2026)
The same FCC fact sheet states that the update "does not prohibit the import, sale, or use of any existing models" the FCC previously authorized. A companion waiver from the FCC's Office of Engineering and Technology (Public Notice DA 26-789, also July 28, 2026) lets manufacturers keep sending software and firmware updates to those previously authorized models "at least until January 1, 2029" — which is what keeps a monitoring app and its security patches working.
The August 20 narrowing added a useful line for anyone with an off-grid or backup-only inverter. Quoting the Department of War determination that the FCC adopted in Public Notice DA 26-870:
"Power inverters that are incapable of connection to the utility grid (i.e., non-utility-interactive inverters) generally do not pose risk to the public utility grid." — Department of War, Second Power Inverter National Security Determination, as quoted in FCC Public Notice DA 26-870 (August 20, 2026)
On the executive-order side, Section 2(b) does give the Secretary of Energy authority over foreign-manufactured bulk-power equipment installed before August 26, 2026 — including orders to isolate, monitor or replace it. The same section requires the Secretary to consider reliability, safety, the availability of secure replacements and continuity of essential service first, and allows phased compliance. That authority is written for substations and generating stations; whether it ever extends to a residential inverter depends on the threshold question the RFI is asking.
Your agreement with the utility is unchanged too. A Nevada home that interconnected under NV Energy's tiered net metering keeps its Tier 4 export credit of 75% of the retail rate for 20 years, per the Public Utilities Commission of Nevada; neither federal action touches that tariff. The mechanics of the credit and the daily demand charge scheduled for January 1, 2027 (as of September 11, 2026, with the Attorney General's appeal pending) are covered in the NV Energy demand charge guide.
There is no verified evidence, as of September 11, 2026, that either federal action has raised the price of a home solar system or a home battery in Nevada. Neither document sets a price, a tariff or a duty.
Any page telling you prices "will rise" because of the order is forecasting, not reporting.
What does exist is uncertainty about product availability, and it is narrower than the headlines. The FCC entry affects which new foreign-produced inverter models can enter the U.S. market; it does not remove a single model that was authorized before July 28, 2026, and manufacturers can apply to the Department of War or Department of Homeland Security for a Conditional Approval — the Executive Branch guidance annex sets that application deadline at January 1, 2028, as summarized by the law firm Morgan Lewis. For the residential market specifically, Wood Mackenzie analyst Joe Shangraw told Canary Media on July 29, 2026 that residential solar inverters are "in a good place," with three suppliers — SolarEdge, Enphase and Tesla — providing about 80% of U.S. residential demand, per Canary Media.
Batteries are a separate case. The FCC entry lists inverters, not battery cells or packs, and the executive order names battery energy storage systems only as bulk-power equipment. A quote for a home battery in Las Vegas should not move because of either action; if one does, ask which line item changed and why. Equipment origin, model number and FCC authorization date are legitimate questions to put to any installer in writing.
Nothing is required of a homeowner by either federal action as of September 11, 2026. What is worth doing takes about ten minutes and costs nothing.
The question is a common one: Solar Resource USA's Bing Webmaster Tools data shows its guide to AI data centers and the power grid was cited about 1,400 times by Microsoft Copilot across 11 grid-strain and blackout-risk questions in the 30 days ending August 30, 2026; the Nevada-specific answer on blackout risk is in Will NV Energy Have Blackouts?
Every date below comes from the Federal Register and FCC documents linked on this page, with two exceptions marked in the rows: "about" dates are counted from the order's August 26, 2026 signing, and the January 1, 2028 deadline comes from the Executive Branch guidance annex the FCC hosts.
This page's Updated date will change when one of them lands.
For most Nevada households, the honest answer is that it doesn't. Three cases cover nearly everyone.
You already own solar, a battery or both. Your equipment is unaffected, your NV Energy interconnection and Tier 4 credit are unaffected, and the FCC has said previously purchased devices are unaffected. There is no action to take and no reason to replace anything.
You are deciding whether solar makes sense for the bill. That decision lives on your NV Energy statement — how much of your usage a system would offset, NV Energy's export credit, and the daily demand charge scheduled for January 1, 2027 (as of September 11, 2026, with the Attorney General's appeal pending before the Nevada Supreme Court). The executive order does not enter that math. A federal order about substations is not a reason to sign a 25-year agreement, and it is not a reason to avoid one.
You are deciding whether a battery makes sense for outages. The relevant facts are how often the grid here actually fails, what an outage does in summer heat, and what your air conditioner draws at start-up. The system-by-system outage guide is the place to start; a national-security order that has not yet set a single rule is not.
When waiting does make sense: if the specific inverter you want is a newly announced foreign-produced model that had no FCC authorization before July 28, 2026, it may not be sold in the U.S. for a long time, and a Conditional Approval is not guaranteed. Choose from authorized models instead, or wait — but wait for the product, not for the order.
Does Executive Order 14421 ban home solar in Nevada?
No. As of September 11, 2026, Executive Order 14421 bans nothing in a Nevada home. The order targets the bulk-power system, which its own definition limits to transmission rated at 69 kV or more and the generation needed for reliability, and which excludes local distribution facilities. Its prohibitions apply only after the Secretary of Energy makes specific risk determinations, and the Department of Energy's implementing rules are due about December 24, 2026.
Are foreign-made solar inverters banned in the United States?
New models are, in a specific sense. On July 28, 2026 the FCC added foreign-produced power inverters to its Covered List, so a new foreign-produced inverter model generally cannot receive the FCC equipment authorization needed to be imported, marketed or sold in the U.S. without a Conditional Approval. Models authorized before July 28, 2026 remain legal to import, sell, install and use. On August 20, 2026 the FCC narrowed the entry to utility-interactive inverters with remote-communication capability and excluded inverters eligible for the section 45X manufacturing credit.
Is my existing solar system or battery affected by the executive order or the FCC rule?
No, as of September 11, 2026. The FCC's July 28, 2026 fact sheet states that the action does not affect any previously purchased devices and does not prohibit the sale or use of previously authorized models, and a same-day waiver (DA 26-789) allows software and firmware updates to those models at least until January 1, 2029. Executive Order 14421's existing-equipment authority applies to bulk-power system equipment and requires the Secretary of Energy to weigh reliability, safety and the availability of secure replacements first.
Does the executive order apply to NV Energy's local power lines?
Not to local distribution. Section 5(a) of Executive Order 14421 defines the bulk-power system to include transmission lines rated at 69,000 volts (69 kV) or more and states that it does not include facilities used in the local distribution of electric energy. The lines that serve a Las Vegas or Henderson neighborhood are that local layer. The open question is how the Department of Energy will treat grid-connected inverters and batteries on that layer, which its September 9, 2026 request for information asks about directly.
When will the Department of Energy decide whether home inverters are covered?
There is no announced date for that specific question. The Department of Energy's request for information (91 FR 57322) takes responses through October 9, 2026, and Executive Order 14421 directs the Secretary of Energy to publish implementing rules within 120 days of August 26, 2026, which falls around December 24, 2026. Whether those rules set a voltage, capacity or connectivity threshold for residential equipment is not known as of September 11, 2026.
Should I wait to go solar in Las Vegas until the rules are final?
Not because of the executive order. As of September 11, 2026 neither federal action changes what a Las Vegas homeowner can install, and equipment already authorized stays legal. The reasons to go solar or to wait live on your own NV Energy bill: the Tier 4 export credit of 75% of the retail rate locked for 20 years, the daily demand charge scheduled for January 1, 2027 (an appeal is pending as of September 11, 2026), and how much of your usage a system would offset. A federal order about substations is not a reason to sign a 25-year agreement, and not a reason to avoid one.
We'll model your NV Energy usage, your export credit and your circuits, and tell you plainly whether it makes sense for your house — including when it doesn't. No credit check, no salesperson, no pressure.
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