Executive Order 14420 Bans Foreign-Made Grid Batteries and Inverters at 69 Kilovolts and Above, Leaving Distribution-Connected Storage Outside Its Scope

The executive order President Trump signed on August 26 lists “utility-scale and other grid-connected inverters; battery energy storage systems; and uninterruptible power supply systems supporting critical infrastructure” among the bulk-power system equipment that may no longer be acquired, imported or installed when foreign-produced. Transmission enters scope only when rated at 69,000 volts or higher, and the definition excludes “facilities used in the local distribution of electric energy.”

The equipment list. The declaration was made under the International Emergency Economic Powers Act and the National Emergencies Act. Prohibitions attach to transactions initiated after August 26 and apply notwithstanding contracts signed before that date. The order also allows the Secretary of Energy to require that equipment already installed be identified, isolated, monitored, disconnected, replaced or removed. Associated software, firmware and remote-access capabilities are covered alongside the hardware.

Two clocks start immediately. The Department of Energy has 120 days, or roughly December 24, to publish implementing rules, and 180 days to recommend revisions to the Federal Acquisition Regulation.

The distribution exclusion. A battery cabinet on the customer side of a distribution transformer in a hospital, a school or a mid-rise office sits outside the term the order regulates rather than inside it under a discretionary carve-out. That reading, which is this article’s assessment rather than a position any agency has yet confirmed, places building-scale storage structurally outside the prohibition rather than inside it with conditions. DOE’s rulemaking will test whether the reading holds in practice.

The order does leave one thread loose. The covered-equipment definition also reaches uninterruptible power supply systems supporting critical infrastructure, a category that on its face is not obviously bounded by the local-distribution exclusion. Whether DOE’s December rulemaking reads that clause as a bulk-power provision or as something wider is the open question for anyone selling a system whose secondary function is facility backup. Domestic and Korean equipment manufacturers took the news as favorable, with SolarEdge climbing as much as 13 percent.

The FCC test does not use voltage. A separate Federal Communications Commission Covered List action gates equipment authorization for new inverter device models regardless of voltage class. A distribution-connected commercial battery can therefore fall outside the executive order and inside the FCC screen at the same time, for reasons that have nothing to do with each other.

Canary Media put the practical version of the confusion in its headline on the order, asking what a ban on “new” foreign-made inverters actually means. Procurement teams at institutional buyers are likely to read this week’s coverage as a general prohibition on foreign batteries and to ask their vendors for an exposure answer that spans both regimes.

Cathode provenance. Neither federal screen reaches the layer that determines whether a domestically assembled pack can eventually clear a material-assistance calculation. Nano One, a Canadian startup, runs a roughly 200 tonne-per-annum lithium iron phosphate cathode pilot line at Candiac, Quebec, with engineering 85 percent complete on an expansion to about 800 tonnes per annum and commissioning targeted for the first half of 2027. The company is pursuing regional joint-venture development companies that license its One-Pot process rather than owning plants, contributing technology while partners bring construction capital and offtake.

Its own sizing of the problem is the useful number. Nano One puts the addressable non-China LFP cathode market at US$8 billion to US$10 billion a year in 2026, growing toward roughly US$40 billion by 2035, and calculates that meeting that demand would require approximately 168 new cathode plants of 25,000 tonnes per annum each. First commercial agreements are targeted for the end of 2026, with small-volume discussions running with defence and energy storage customers.

Set that against a National Defense Authorization Act restriction on batteries from prohibited foreign entities that begins in 2028, and a Section 45X credit that remains at US$35 per kilowatt-hour. An 800 tonne-per-annum line commissioning in 2027 is a pilot-scale answer to a gigawatt-scale question, which means cell-level sourcing diligence in the interim has to ask where cathode active material originates rather than where cells were assembled.

The insurance screen. At an Energy-Storage.News briefing, Namrata Soni, lead underwriter for energy and construction at Canopius Group, said compliance testing such as UL 9540A is a starting point rather than a full answer, framing the underwriting question as “can we isolate these fires if there is an event?” Underwriters separately examine separation distances between units, proximity to transformers, gas detection triggers and emergency access.

Soni put a rough threshold of 8,500 loss-free operating hours globally, excluding China, before non-lithium chemistries earn favourable terms. That figure is an insurance-side verdict on the sodium-ion and zinc safety pitch now aimed at indoor commercial rooms, and it is one that laboratory cycle counts do not satisfy. Flinders University researchers reported a zinc-iodine cell holding above 150 mAh/g across more than 60,000 cycles this week, at prototype stage, with no product and no system listing. Gemma Claase of Howden made a separate point at the same briefing: developers who arrive with a month to go produce non-bankable terms.

December. DOE’s implementing rule is due around December 24. Treasury must publish prohibited-foreign-entity safe harbor tables by December 31, and the Section 48E elective-pay domestic content waiver relied on by tax-exempt institutional buyers expires at the end of this year. Two of the three federal answers that determine what a commercial battery costs, and whether it can be installed, land in the same fortnight.

The 69 kV threshold is the only one of these tests that a buyer can settle today by reading a nameplate. Every other screen now applied to the same cabinet resolves on someone else’s publication schedule.

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