1. Introduction

The United States bulk-power system, the high-voltage transmission backbone operating at or above 69 kV that keeps regional grids synchronized and reliable, depends on a small set of heavy electrical equipment categories. Manufacturing capacity is concentrated globally, lead times are measured in years rather than months, and large power transformers (LPTs) are custom-engineered assets that are not readily interchangeable. On August 26, 2026, President Trump signed Executive Order 14420, declaring a national emergency concerning the foreign supply of bulk-power system electric equipment. The order does not simply ban all foreign equipment. Instead, it authorizes DOE to prohibit transactions involving equipment connected to a Covered Foreign Entity when DOE also determines that the transaction poses one of the national-security or infrastructure risks described in the order. That distinction matters because the practical reach of EO 14420 will depend heavily on DOE's implementation.

This report has five purposes. First, it places EO 14420 in historical context by comparing it with Executive Order 13920 from 2020 and the procurement behavior that followed. Second, it looks at likely effects by buyer category: investor-owned utilities (IOUs), engineering-procurement-construction (EPC) contractors, generation and transmission cooperatives and public power districts, data centers, independent power producers (IPPs), and renewable energy developers. Third, it reviews which countries and manufacturers may be best positioned to absorb displaced demand. Fourth, it presents illustrative 2026-2031 scenarios for large power transformers and for the broader equipment classes covered by the order. Fifth, it examines the six-to-twelve-month risk that buyers accelerate orders and shipments while DOE's implementation is still developing, potentially adding pressure to already-stressed ports and project-cargo logistics.

A note on sourcing and precision. The U.S. International Trade Commission's DataWeb platform is the authoritative primary source for Harmonized Tariff Schedule (HTS)-level import data by country and is the appropriate tool for validating or refining the figures in Section 6 against the most current customs records; the country-of-origin breakdown specifically for large power transformers (HTS 8504.23) is redacted for confidentiality in the most recent public USITC investigative record (the 2024 large-power-transformer antidumping proceeding concerning Korea), which is why this report's Track 1 projections are built as transparent, sourced scenarios rather than presented as precise customs figures. Where dollar or volume figures are drawn from secondary analyst sources (Wood Mackenzie, industry trade press, law-firm client alerts) rather than primary customs data, this is noted at first use. Because DOE's implementing regulations aren't due until December 24, 2026, the scenario ranges in Section 6 should be read as plausible outcomes rather than as a single forecast.

2. Regulatory Background: From Executive Order 13920 to Executive Order 14420

2.1 Executive Order 13920 (2020) and Its Legacy

EO 13920, issued May 1, 2020 under IEEPA and the National Emergencies Act, declared a national emergency with respect to foreign adversary threats to the bulk-power system and directed the Secretary of Energy to develop rules within 150 days (by September 28, 2020) identifying prohibited equipment, foreign-adversary suppliers, and a licensing and pre-qualification framework. In practice, the order's only concrete enforcement action was the DOE's Prohibition Order Securing Critical Defense Facilities, published in the Federal Register on January 6, 2021, which barred a defined set of utilities serving critical defense facilities from acquiring or installing bulk-power equipment originating in the People's Republic of China. That order took effect with roughly two weeks left in President Trump's first administration.

On his first day in office, President Biden suspended EO 13920 as part of a broader review of Trump-era national-security orders, and DOE formally revoked the Prohibition Order in April 2021, replacing it with a 100-day request for information and cybersecurity initiative rather than a binding transaction ban. In practical legal terms, EO 13920 was therefore short: roughly eight months from signature to suspension, and its only implementing prohibition order was in effect for barely three months before revocation.

The behavioral legacy, however, outlasted the legal instrument. As Wood Mackenzie's Ben Boucher observed in connection with EO 14420, "utilities have been largely avoiding Chinese suppliers since the first bulk power ban," a durable shift in IOU and cooperative procurement behavior that persisted for roughly five years after the legal restriction itself lapsed. This is the single most important lesson EO 13920 offers for forecasting EO 14420's impact: a national-security-framed procurement restriction, even one that is short-lived and later reversed, appears to influence the vendor shortlists used by risk-averse utility procurement departments for years, independent of whether the underlying legal prohibition remains in force. As a result, buyers that did not respond as strongly to the 2020-2021 order, chiefly data centers and other buyers optimizing primarily for lead time rather than long-run regulatory risk, now face the greatest procurement adjustment under EO 14420, a theme developed further in Section 4.

2.2 Executive Order 14420 (2026): Legal Basis, Scope, and Timeline

EO 14420 is materially broader and more detailed than its predecessor in four respects that matter for market impact modeling:

• Equipment scope. The order's Section 5(b) defines "bulk-power system electric equipment" expansively: substation transformers, reactors, capacitors, utility-scale and other grid-connected inverters, battery energy storage systems, uninterruptible power supply systems, instrument transformers, high-voltage circuit breakers, generation turbines, and industrial control systems (RTUs, PLCs, distributed control and safety-instrumented systems), together with associated software, firmware, and remote-access capability. This is materially broader than EO 13920, and it is the reason the order's aggregate commercial exposure ($22 billion in imports since the start of 2025, according to Wood Mackenzie) is driven more by inverters and battery storage than by transformers, where Chinese manufacturing share is highest.

• Legacy equipment. Unlike a simple prospective ban, Section 2(b) authorizes the Secretary of Energy to impose conditions, including identification, isolation, monitoring, disconnection, or removal, on already-installed foreign equipment, subject to a reliability and safety review and phased compliance. This could generate long-term demand for retrofitting or replacing equipment that wouldn't result from a restriction on new transactions alone.

• Covered Foreign Entities. The order defines a Covered Foreign Entity by reference to countries and persons subject to U.S. arms embargoes or sanctions regimes under the International Traffic in Arms Regulations, while also allowing DOE, in consultation with other national-security officials, to designate additional countries or persons for purposes of the order. Analysts generally view China as the principal commercial focus of the new framework, but the order's structure is broader than a country-specific ban. Component ownership, joint-venture structures, software and firmware provenance, remote access, and other supply-chain dependencies could all matter once DOE publishes its implementing rules.

• Procedural timeline. The order applies to transactions initiated after August 26, 2026, but a transaction becomes prohibited only when DOE makes the determinations required by Section 2(a), subject to any applicable licenses, exemptions, mitigation measures, or pre-qualification procedures. DOE is directed to publish implementing rules or regulations within 120 days as needed, which places December 24, 2026 at the center of the market's planning horizon. Separately, DOE has 180 days to recommend Federal Acquisition Regulation changes intended to strengthen national-security review and prioritize U.S.-manufactured energy infrastructure in federal procurement.

The practical consequence is not a guaranteed four-month safe harbor, but a period of unusually high uncertainty. Buyers know that transactions initiated after August 26 are within the order's reach, while the detailed vendor, equipment, licensing, mitigation, and pre-qualification framework is still being developed. That creates a strong incentive to review contracts, document supply chains, secure manufacturing slots, and in some cases accelerate decisions before the regulatory picture becomes more restrictive or more expensive. This potential pull-forward in ordering is factored into the scenarios in Section 6, with the larger market effects expected to become clearer in 2027 and beyond.

3. The State of the U.S. Power Transformer Market Entering EO 14420

3.1 A Structural Shortage Meets a Demand Shock

EO 14420 does not arrive in a slack market. Wood Mackenzie's 2026 assessment estimates current U.S. shortage at approximately 15% for power transformers and 8% for substations, with the greatest pressure concentrated in the 100 MVA-and-above segment, the class of transformer used for large substations, bulk transmission interconnection, and, increasingly, gigawatt-scale data center campuses. Demand in this segment is being driven by several forces that predate the order and will continue independent of it: aging transmission infrastructure requiring replacement, renewable-generation interconnection queues, industrial reshoring, and, above all, the rapid expansion of AI and hyperscale data center capacity. Wood Mackenzie data cited in industry press indicates the U.S. market for power transformers above 10 MVA has expanded nearly 300% since 2020; generator step-up (GSU) transformer demand rose an estimated 274% between 2019 and 2025, and substation transformer demand rose an estimated 116% over the same period.

3.2 Price, Lead Time, and Import Dependence

Two consequences of this demand-supply mismatch predate EO 14420 and will condition its impact. First, pricing: transformer prices have risen sharply over the past five-plus years, driven by demand growth, tariff-driven input cost inflation (Section 232 tariffs of 50% currently apply to steel inputs, affecting grain-oriented electrical steel, a core transformer input largely imported), and constrained global manufacturing capacity for the specialized steel and copper windings LPTs require. Second, lead time: PwC and industry trade press place lead times for the largest transformer classes at approximately four years as of mid-2026, up from roughly one year in the early 2020s.

Primary-source pricing data support this increase. The Bureau of Labor Statistics' Producer Price Index for Electric Power and Specialty Transformer Manufacturing (FRED series PCU335311335311) stood at 258.8 in May 2020, when EO 13920 was signed, and reached 474.8 by July 2026 (the latest available observation at the time of this report), a cumulative increase of approximately 83% over roughly six years, with the largest increase (258.8 to 410.3, +58.6%) occurring between 2020-2022, coinciding with the original bulk-power executive order, the onset of pandemic-era input-cost inflation, and the beginning of the current data-center-driven demand surge. Figure 1 plots the full series from 2015 through the most recent observation.

Figure 1. Producer Price Index or U.S. electric power and specialty transformer manufacturing, 2015-2026 (June 1981 = 100). Source: Federal Reserve Bank of St. Louis (FRED), series PCU335311335311, "Producer Price Index by Industry: Electric Power and Specialty Transformer Manufacturing," U.S. Bureau of Labor Statistics, not seasonally adjusted, https://fred.stlouisfed.org/series/PCU335311335311, accessed September 2026.

Import dependence in the LPT segment specifically is substantial and well documented in USITC's public record. In the Commission's most recent large-power-transformer investigative record (concerning Korean-origin LPTs), apparent U.S. consumption of large power transformers rose from approximately 148,271 MVA in 2021 to 175,750 MVA in 2023 (an 18.5% increase in two years), while the domestic industry's share of that consumption fell from 32.5% (2021) to 29.2% (2023), meaning imports supplied roughly 71% of a growing U.S. market as of the most recent public data. The Commission's own non-confidential text states verbatim that "the largest sources of nonsubject imports in 2023 were Mexico, Netherlands, Brazil, Croatia, China, Poland, and Canada," indicating that, by volume, China was a mid-tier rather than dominant LPT supplier as of 2023, materially behind Mexico and several European and Latin American sources. This is USITC's own enumerated list of its largest nonsubject sources for calendar-year 2023 specifically, not a complete list of every country that ships large power transformers to the United States, and LPT trade is lumpy enough that a handful of individually contracted units can swing a country's annual ranking, so that a structurally significant supplier can fall outside a single year's top-source list.

Austria is a case in point: Siemens Energy's Weiz plant, in continuous operation for more than 130 years, is a long-established source of large power transformers for major U.S. utilities (it shipped its 50th large unit, a 600 MVA, 345 kV transformer, to Oncor in Texas as of 2016, and Siemens has continued to supply the U.S. market from Weiz since), yet Austria does not appear among the Commission's seven named top nonsubject sources for 2023, illustrating that the published ranking should be read as "the largest sources in that particular year" rather than as a complete or static map of every country capable of supplying the U.S. market. Germany (home to SGB-SMIT Group, headquartered in Regensburg), Italy, and Spain are other established European suppliers that likewise ship in volumes below the Commission's 2023 top-source threshold. This distinction matters because China doesn't dominate the transformer trade the way it dominates, for instance, solar-inverter or battery-cell manufacturing (addressed in Section 5.1): In the large-power-transformer market, China is a fast-growing supplier helping to fill the supply gap in the scarcest, highest-value tier, not the market's largest source by volume or value.

That said, China's role has grown considerably. A Department of Energy official noted in 2019 that Chinese-origin transformers in the U.S. energy sector had gone from zero a decade earlier to over 200 units; DOE's own 2020 count found 66 Chinese large power transformers imported in that year alone, 54 of which exceeded 100,000 kVA. squarely in the segment now most supply-constrained. This concentration in the scarcest tier, rather than China's overall trade share, helps explain why Wood Mackenzie identifies data centers, the buyers under the greatest pressure to reduce lead time in the 100 MVA+ class, as the segment facing the largest disruption from EO 14420's transformer provisions specifically.

4. Differential Impact Across Buyer Categories

EO 14420's commercial impact is not uniform. The order's effect on any given buyer depends on three variables: (a) historical reliance on Chinese-origin equipment specifically, (b) exposure to the order's broader equipment categories beyond transformers (inverters, BESS, controls), and (c) contractual and organizational ability to absorb longer lead times and higher prices. The following assessment generally moves from least exposed buyer categories to the most exposed.

4.1 Investor-Owned Utilities

Based on the evidence discussed in Section 2.1, IOCs are the buyer category best positioned to absorb EO 14420, precisely because many already reevaluated Chinese sourcing after the 2020-2021 EO 13920 episode and have since diversified toward Mexican, South Korean, Brazilian, European, and expanding domestic sources. For many IOUs, exposure is now concentrated less in transformers than in the order's broader equipment categories, grid-scale inverters and BESS units procured for utility-scale storage and renewable-integration projects, where Chinese market share remains structurally high. IOUs are also best able to negotiate long-term supply agreements, procure equipment from DOE's anticipated list of pre-qualified vendors, and can pass through equipment cost increases through approved rate cases, reducing, though not eliminating, the order's financial impact. The principal IOU-specific risk is Section 2(b)'s legacy-equipment provision: utilities that installed Chinese-origin transformers, relays, or control systems during the 2010s, as reflected in DOE's own count, could face significant identification, monitoring, and potential replacement obligations whose cost and timeline depend entirely on DOE's yet-unpublished implementing rules.

4.2 Engineering, Procurement, and Construction Firms

EPCs sit at the center of compliance risk, often without controlling the underlying sourcing decision, since equipment specification is frequently set by the utility, developer, or IPP client rather than the EPC itself. EPCs face two compounding pressures: an immediate need to document (country of manufacture, ownership structure, and firmware provenance across their full equipment and subcontractor supply chains, while pricing and scheduling projects before the rules are finalized in December 2026), and schedule risk under fixed-price or guaranteed-completion contracts signed before the rules exist. Multiple law-firm client alerts published in the order's immediate aftermath explicitly recommend that EPCs and suppliers begin contract audits and supply-chain documentation now, while the practical scope of "foreign-produced" remains uncertain..

4.3 Cooperatives and Public Power Districts

Generation and transmission cooperatives and public power districts (co-ops/PUDs) have equipment exposure similar to that of smaller IOUs but typically lack IOUs' balance-sheet depth, in-house trade-compliance staff, and rate-case cost-recovery flexibility. Co-ops and PUDs serving predominantly rural or lower-density territories have historically been more price-sensitive in transformer procurement and, anecdotally, somewhat slower than large IOUs to exit Chinese sourcing after 2020-2021 given tighter capital budgets; this leaves some co-ops and PUDs more exposed to near-term price increases and longer lead times than the IOU segment as a whole, even though co-ops/PUDs collectively represent a smaller share of aggregate national transformer demand. Federal financing available to many rural cooperatives, including USDA Rural Utilities Service loan programs, may help fund accelerated equipment replacement or transitions to domestic suppliers, although this depends on program capacity and appropriations outside the scope of EO 14420.

4.4 Data Centers and Hyperscale Operators

Data centers and hyperscale operators appear to be the buyer category most acutely exposed to EO 14420's transformer provisions. Wood Mackenzie's Ben Boucher states this directly: utilities have largely exited Chinese suppliers since 2020, so "a bulk of the impacts will be centered around data centers who have been using Chinese units to minimize lead times," particularly in the 100 MVA+ segment where the shortage is most acute and where some data center operators have prioritized speed of delivery over long-term supplier diversification. An additional concern is uncertainty over the order's definitions: because EO 14420's bulk-power system definition is anchored to transmission-level voltage (69 kV+) and reliability functions rather than end-use, it remains unclear, as Wood Mackenzie itself notes, whether and how the order applies to data center interconnection and on-site generation/storage assets, meaning the extent of data center exposure will not be resolved until DOE's December 2026 rulemaking. Data centers additionally face the order's inverter and battery-storage provisions for on-site backup power and storage, a segment where China's manufacturing share is substantially higher than in transformers (Section 5.1), further complicating sourcing.

4.5 Independent Power Producers

IPPs, merchant generators and project companies without a captive utility parent, share data centers' sensitivity to price and lead times but also face exposure through generation-specific equipment: EO 14420's equipment list explicitly includes generation turbines, generator step-up transformers, a category Wood Mackenzie estimates demand has grown 274% since 2019, and backup and small generators. IPPs developing merchant or contracted generation projects on compressed development timelines, and lacking the long-standing vendor relationships and volume leverage of large IOUs, are likely to face some of the largest increases in lead-time as demand shifts away from Chinese suppliers and increases competition for the limited production capacity of non-Chinese LPT and turbine capacity.

4.6 Renewable Energy Developers

Renewable developers (utility-scale solar, wind, and storage) face the greatest cumulative regulatory burden of any buyer category, because EO 14420 adds to three existing federal frameworks that already affect renewable project economics: Foreign Entity of Concern (FEOC) restrictions, domestic-content adders and Section 45X manufacturing credits under the Inflation Reduction Act framework, and existing Section 301 tariffs on Chinese-origin equipment. One legal analysis describes renewable developers now navigating "a fourth federal lane" of foreign-sourcing restrictions. Each framework has its own definition of a disqualifying foreign connection, adding compliance complexity even before project costs are considered. Within this category, solar developers face the most direct exposure beyond transformers through utility-scale and grid-connected inverters (with NEMA estimating that China accounts for 80% or more of global production of certain grid equipment, including lithium-ion battery cells), while wind developers are comparatively insulated on the generation side, since major turbine OEMs are predominantly European-headquartered, although China's share of the wind-equipment market has been growing and should be monitored.

4.7 Summary: Relative Exposure by Buyer Category

Table 1. Qualitative exposure assessment by buyer category. "Net exposure" reflects combined direct equipment, indirect equipment, cost-absorption, and schedule-risk factors discussed in Section 4.

5. Country-Level Supply Risk

5.1 China: A Concentrated but Bifurcated Exposure

China's exposure under EO 14420 differs sharply by equipment class, and treating the two classes as equivalent leads to materially different conclusions. In large power transformers specifically, China is, according to the most recent public USITC investigative record, a mid-tier, fast-growing supplier ranked behind Mexico, the Netherlands, and Brazil among non-Korean import sources as of 2023, but concentrated disproportionately in the scarcest 100 MVA+ tier, where DOE's own count found 54 Chinese-origin units above 100,000 kVA imported in 2020 alone. In inverters, battery energy storage systems, and related grid electronics, by contrast, China's position is closer to dominant: NEMA cites Chinese production at 80% or more of world output for certain grid equipment including lithium-ion cells, and Wood Mackenzie describes China as accounting for "virtually all" of the $22 billion in bulk-power equipment imports covered since the start of 2025 under the order's broad definition. The practical implication is that EO 14420 will bite hardest and fastest on the inverter/BESS side of China's exposure, where comparable substitute supply is limited in the near term, and more gradually, but still materially, on the transformer side, where alternative suppliers already provide the majority of import volume.

5.2 Non-Sanctioned Alternative Suppliers

Mexico is both the largest single non-domestic supplier of U.S. transformer-class equipment in the most recent available data (20% of total U.S. HS 8504 transformer-category import value in 2023, per trade data, and the leading non-Korean LPT source by the USITC's ordering) and the country best positioned to absorb displaced Chinese LPT volume, given existing USMCA-integrated manufacturing (GE Vernova/Prolec-GE and other North American-integrated producers operate Mexican facilities) and geographic proximity that shortens logistics lead time relative to transpacific shipping. South Korea remains a major LPT supplier despite the antidumping duties currently in place on Korean-origin units (the subject of USITC's own 2024 investigation), and Korean producers, including Hyundai HD Electric and others, have signaled continued U.S. market commitment. Brazil, the Netherlands, Canada, Poland, and Croatia make up the next tier of established suppliers identified in the USITC record's own 2023 ranking and collectively provide meaningful, though not unlimited, substitution capacity; each faces its own capacity constraints given the same global shortage of transformer-grade electrical steel and skilled winding labor that underlies the broader shortage described in Section 3.

Austria warrants separate mention alongside this named list, notwithstanding its absence from the Commission's specific 2023 ranking (see the discussion of year-to-year lumpiness in Section 3.2): Siemens Energy's Weiz, Austria plant is a long-established sourceof large power transformers supplied to major U.S. utilities, with production there tracing back more than 130 years and a long-standing direct relationship with Texas utility Oncor (its 50th large unit shipped to Oncor, a 600 MVA, 345 kV transformer, as of 2016, with the relationship continuing since). Because Siemens Energy is simultaneously investing $421 million in new U.S.-based transformer manufacturing capacity in Charlotte, North Carolina (Section 5.3), Austria is an established European manufacturing base for Siemens Energy, one of the major Western manufacturers, alongside Hitachi Energy, now expanding domestic U.S. capacity, meaning Weiz-sourced imports are likely to continue essentially unaffected by EO 14420 (Austria is not a Covered Foreign Entity) while U.S. output from the same manufacturer scales up in parallel. Germany (home to SGB-SMIT Group, headquartered in Regensburg), Italy, and Spain are other established European suppliers shipping in volumes evidently below the Commission's 2023 top-source threshold. India, a growing transformer exporter with significant announced capacity expansion, could benefit from this shift although it isn't yet a top-tier U.S. supplier of LPTs.

5.3 The Domestic Manufacturing Response

Domestic capacity additions, while important, will not close the shortage within EO 14420's initial implementation window. Hitachi Energy has committed more than $1 billion to U.S. transformer manufacturing, including a new facility in South Boston, Virginia, targeted to begin production in 2028; Siemens Energy has committed $421 million to a transformer factory in Charlotte, North Carolina. These investments together with brownfield expansions reported across the existing U.S. manufacturing base (GE Vernova, SPX Transformer Solutions, Virginia Transformer, Pennsylvania Transformer, WEG, and others), are consistent with the USITC record's finding that domestic large-power-transformer capacity utilization was already 77.7% in 2023 against 66,174 MVA of installed capacity, indicating that existing plants were operating at substantial, but not full, capacity, leaving some room for output growth from existing plants ahead of new capacity coming online in 2028 and beyond. The overall trajectory implied by the USITC data (domestic share of consumption falling from 32.5% in 2021 to 29.2% in 2023, even as absolute domestic output presumably rose) illustrates the core constraint: demand growth from data centers and grid modernization has been outpacing even a genuinely expanding domestic industry, which is why shifting imports to non-Chinese suppliers, rather than relying on full reshoring, is the more likely near-term path modeled in Section 6.

6. Illustrative Market Scenarios, 2026-2031

6.1 Methodology, Assumptions and Data Limitations

Two parallel scenario tracks are presented below because the order reaches two very different markets. Track 1 covers large power transformers specifically. Track 2 covers the much broader class of bulk-power system electric equipment identified in EO 14420, including transformers, inverters, battery storage, generators, breakers, and control systems. The distinction matters because China's position in large power transformers is very different from its position in inverter and battery supply chains.

These tables are illustrative scenarios, not official forecasts and not point-precise customs estimates. They are anchored to the public data cited in this report, including USITC large-power-transformer data, published industry estimates, and the market-size sources listed at the end of the report. Public USITC materials do not disclose all country-level LPT values needed to build a precise current customs series, so the China shares, growth rates, and substitution paths shown below are assumptions used to test plausible outcomes. They should be updated as new USITC trade data and DOE implementing rules become available. The purpose of the scenarios is to show direction and sensitivity, not to suggest that 2030 or 2031 import values can be known precisely today.

Publication note: The values below are scenario outputs based on stated assumptions. They are intended to illustrate a range of possible market responses to DOE implementation and should not be read as Potencia Partners forecasts or as official U.S. import statistics.

6.2 Track 1: Large Power Transformer (LPT) Imports

All three scenarios share the same starting point, an estimated 11% Chinese share of 2026 LPT import value, consistent with China's mid-tier but growing position in the USITC nonsubject-source ordering, and diverge based on how aggressively DOE's December 2026 rules are enforced in practice.

Scenario A - Base Case (phased DOE rules, partial licensing exemptions; 9%/yr demand growth)

Table 2a. Under the base case, China's share of LPT import value falls from an estimated 11% (2026) to roughly 1.5% (2031) as DOE rules phase in gradually and buyers shift purchases toward Mexican, Korean, and Brazilian suppliers; the U.S. LPT market itself continues to grow at an estimated 9%per year, driven by data-center and grid-hardening demand.

Scenario B - Strict Enforcement (China effectively excluded without at license; 14%/yr demand growth reflecting accelerated data center buildout)

Table 2b. Under strict enforcement, China's LPT import share collapses to near-zero within two to three years, consistent with the procurement shift that followed DOE's short-lived 2020-2021 Prohibition Order (Section 2.1), while overall import value still rises because demand growth outpaces the modest near-term increase in domestic and allied-country supply.

Scenario C - Light-Touch (broad DOE pre-qualification list, slow enforcement; 9%/yr demand growth)

Table 2c. Under a light-touch regime, plausible given the order's own Section 2(e) authorization for the Secretary to pre-qualify vendors and equipment classes, China's LPT import share declines only modestly, from 11% to roughly 6% by 2031, as some Chinese suppliers or components receive DOE pre-qualification.

6.3 Track 2: Broad "Bulk-Power System Electric Equipment" Imports

The broader track, anchored on Wood Mackenzie's reported $22 billion in cumulative imports since the start of 2025 (annualized to an estimated $13.2 billion 2026 run rate) and an estimated 80% Chinese share of that category as the 2026 starting point, tells a materially different story from Track 1, because it is dominated by inverters and battery storage rather than transformers, and China's structural position in those subcategories is much stronger.

Scenario A - Base Case (phased rules, partial substitution; 18%/yr category demand growth)

Table 3a. China's share of the broad equipment category falls from an estimated 80% (2026) to roughly 32% (2031) - a much shallower decline than in Track 1, reflecting the greater difficulty of substituting away from Chinese-dominated inverter and battery-cell supply chains in the near term.

Scenario B - Strict Enforcement (aggressive DOE designation and licensing scarcity; total imports modeled at 18% annual growth)

Table 3b. Even under strict enforcement, China's share of the broad category does not fall below an estimated 16% by 2031 in this scenario, underscoring that inverter and BESS substitution is a multi-year industrial-capacity problem rather than a matter of DOE rule stringency alone.

Scenario C - Light-Touch (broad pre-qualification, slow enforcement; 24%/yr demand growth reflecting minimal disruption to buildout pace)

Table 3c. Under a light-touch regime, the value of China-origin imports rises in absolute terms even as its percentage share declines modestly, because underlying category demand growth (driven by continued AI/data-center buildout) outpaces the rate of substitution.

6.4 Interpretation

Reading Tracks 1 and 2 together yields the report's central quantitative conclusion: EO 14420's effect on power transformers imported from China specifically is likely to be a rapid and near-total reduction in relative terms (China's share of LPT imports falling from roughly 11% toward low single digits within two to three years across all but the light-touch scenario), but this reduction is smaller in absolute dollar and reliability terms than the order's headline framing might suggest, because China because China wasn't the dominant source of U.S. LPT imports before the order, Mexico, South Korea, Brazil, the Netherlands, and Canada already supplied the majority of imports, and it is these countries, plus expanding domestic capacity, are best positioned to absorb the bulk of the displaced demand described in Section 5.2. The order's larger and more durable effect on the broader $22-billion bulk-power equipment category, where China's share is projected to remain above 30% under the base-case substitution scenario through 2031, falls predominantly on inverters and battery storage, and therefore predominantly on the buyer categories most exposed to those subcategories: renewable developers and data centers (Section 4.4 and 4.6), rather than on transformer-centric buyers like traditional transmission-focused IOUs.

7. Near-Term Port and Logistics Impact (6-12 Months): The Front-Loading Rush

This section examines the near-term (six-to-twelve-month) risk that suppliers and buyers rush to import bulk-power equipment before DOE issues its implementing rules, and whether that rush could congest major U.S. gateway ports the way Long Beach, Los Angeles, and other terminals were congested earlier in 2026. The evidence supports treating this as a credible risk; similar front-loading episodes contributed to port congestion twice in 2026, although the scale of any surge related to EO 14420 remains uncertain

7.1 The 2025-2026 Precedent: Tariff Front-Loading Congestion

U.S. West Coast ports experienced two distinct front-loading episodes in the twelve months preceding EO 14420, both driven by an incentive similar to the one created by EO 14420: importers accelerating shipments ahead of an anticipated IEEPA-based trade restriction. The Port of Long Beach's CEO attributed the port's full-year 2025 volume of 9.9 million TEUs in part to shippers who "move[d] goods before tariffs and reciprocal tariffs were implemented last spring," and Port of Los Angeles leadership likewise described January 2026 volumes as elevated by importers "scrambling to get cargo in ahead of tariffs." A second, larger surge followed in spring 2026: Long Beach handled 842,030 TEUs in May 2026 alone, a 31.7% year-over-year increase (imports specifically rose 40%), which port officials attributed to shippers "advancing their cargo movements to mitigate rising costs, tariff unpredictability, and geopolitical risks."

Each surge was followed by measurable landside congestion with a lag of roughly four to eight weeks after the triggering policy event. During the January-March 2026 episode, import container dwell time, the hours cargo sits in the terminal between vessel discharge and gate-out, spiked to 179.6 hours at Long Beach (March 2026), 116 hours at New York/New Jersey (late February 2026), and 99 hours at Los Angeles (late March 2026); vessel wait times at anchor reached nearly 64 hours at New York/New Jersey. Moody's Ratings, commenting on the prospect of a further volume increase later in 2026, warned explicitly of "potential yard congestion, longer dwell times, and equipment constraints." The conditions Moody's warned about subsequently emerged: by July 2026, container dwell times at the Los Angeles-Long Beach complex climbed to their highest level in more than a year, a development trade press attributed to a combination of rising import volumes, an ongoing chassis shortage, and local street closures disrupting rail and truck drayage, factors that can prolong congestion beyond the initial volume spike. Figure 2 summarizes the peak dwell-time data from the first 2026 episode, which this report treats as the closest available empirical precedent for what an EO 14420-driven surge could produce.

Figure 2. Peak import container dwell time by port during the January-March 2026 IEEPA tariff front-loading episode. Source: VIZION API, "US Port Performance 2026: Long Beach, LA & New York"; Port of Long Beach and Port of Los Angeles public statements.

7.2 Why EO 14420 Recreates a Similar Incentive: On a Tighter Clock

The same basic incentive that drove earlier front-loading episodes may also appear under EO 14420, but the legal mechanics are different from a tariff deadline. Section 2(a) reaches transactions initiated after August 26, 2026 when DOE makes the required Covered Foreign Entity and risk determinations. DOE also has authority to create licenses, mitigation measures, and pre-qualified vendor or equipment lists, and it must publish implementing rules or regulations within 120 days as needed. In other words, the period before December 24 is not an unambiguous safe harbor. It is a period in which buyers face greater uncertainty about which suppliers, components, software, and transactions may ultimately be restricted. That uncertainty alone can encourage earlier contracting, documentation, manufacturing-slot reservations, and shipment planning.

Two features distinguish EO 14420 from the earlier tariff episodes and could concentrate some of the resulting logistics pressure. First, the market has a clearly identified 120-day implementation horizon running from August 26 to December 24, 2026, even though DOE could act through determinations, licenses, mitigation measures, or other authorities during that period. Second, the affected cargo mix is unusually specialized. Inverters, battery modules, controls, and smaller transformers move through standard container channels, while large power transformers and generators often require heavy-lift vessels, specialized berths, rail coordination, permits, and oversized inland transport. A relatively small increase in project cargo can therefore create schedule problems even when it is too small to move headline container statistics.

7.3 A 6-12 Month Outlook

Applying the four-to-eight-week lag observed in both 2025-2026 episodes to EO 14420's August 26, 2026 signature and December 24, 2026 rulemaking deadline points to a plausible congestion window running from approximately October 2026 through the first quarter of 2027, placing it within this report's six-to-twelve-month horizon of this question, with three sub-phases:

• October-December 2026 (pre-deadline rush). Bookings of Chinese-origin bulk-power equipment are likely to increase, concentrated in inverters, battery storage, and smaller transformer components moving through container gateways, layered on top of the already-tight 2026 baseline (July 2026 dwell times already at a 12-month high). Long Beach and Los Angeles carry the highest exposure given their dominant share of containerized China-origin cargo; New York/New Jersey and Savannah are secondary risk points given their demonstrated 2026 dwell sensitivity and China-cargo share, respectively.

• December 2026-February 2027 (post-deadline digestion). Once DOE issues its rule, the four-to-eight-week congestion lag observed in both prior episodes would place peak landside strain in this window, plausibly compounded by holiday peak-season cargo, which Port of Long Beach leadership already flagged as arriving earlier than usual in 2026, and by the same chassis-availability and drayage constraints (street closures, rail capacity) cited in the July 2026 congestion report.

• Heavy-lift/breakbulk segment (rolling risk through the full window). Because large power transformer shipments are individually scheduled on a much smaller fleet of specialized vessels, a surge in LPT bookings ahead of the deadline would not necessarily show up in the standard container-dwell metrics tracked above; it is more likely to manifest as vessel-scheduling slippage and extended port-to-site inland transport times at Houston, Baltimore, Charleston, and Savannah, compounding the four-year lead times already discussed in Section 3.2 rather than appearing as classic "port congestion."

The magnitude of this risk should not be overstated in absolute trade-flow terms: even the broad ($22 billion) bulk-power equipment import category modeled in Section 6.3 is a small fraction of total U.S. containerized trade through these gateways, so a bulk-power-specific surge is unlikely to independently rival the volume of a broad-based tariff front-loading episode. Its practical significance is instead as a compounding factor layered on top of an already-stressed 2026 logistics baseline (elevated dwell times, chassis shortages, drayage disruptions) and on top of the substantive four-year lead times documented in Section 3.2, meaning buyers in the highest-exposure categories identified in Section 4, particularly data centers and IPPs racing to secure transformers rated at 100 MVA and aboveand grid-scale battery storage before December 24, 2026, should plan for logistics-driven schedule slippage in the fourth quarter of 2026 and first quarter of 2027 as a realistic near-term risk, in addition to any delays resulting from the order's licensing requirements..

8. Lessons from Executive Order 13920: What Repeats, What Differs

Three parallels between the 2020 and 2026 episodes are instructive for calibrating expectations. First, both orders rely on the same legal architecture (IEEPA/NEA emergency declaration plus DOE-administered licensing), which means both are subject to the same structural vulnerability: a change in administration, or in DOE's risk tolerance within the same administration, can suspend or narrow the order's practical reach far faster than the multi-year capital cycle of transformer procurement can adjust. Given that EO 13920 was suspended within eight months of signature, market participants have recent precedent for viewing the 2026 restriction as potentially temporary while still making lasting changes to their procurement practices, the same bifurcation Wood Mackenzie's commentary describes for the 2020-2021 episode.

Second, both orders created a period in which implementation details mattered as much as the headline policy. EO 13920 took more than seven months to produce its principal implementing prohibition order. EO 14420 is different: it is effective now for transactions initiated after August 26, but DOE must make the determinations required by the order before a transaction is prohibited and is also developing the rules, licensing, mitigation, and pre-qualification framework. As of September 2026, the most immediate commercial effects are therefore likely to include contract reviews, supplier documentation, manufacturing-slot decisions, contingency sourcing, and some pull-forward behavior while buyers wait for greater regulatory clarity.

Third, and most consequentially: EO 14420's equipment scope is broader in key areas than EO 13920's, explicitly including inverters, battery storage, and control-system software in a way the 2020 order did not. This means that even if EO 14420 follows EO 13920's pattern of being narrowed, licensed-around, or eventually suspended by a future administration, its effect on procurement practices could be broader and more consequential than EO 13920's, precisely because it targets equipment categories (inverters, BESS) where Chinese market share is structurally higher, and alternative supply is structurally scarcer than in transformers, giving the procurement shift described in Section 2.1 a broader potential reach.

9. Discussion: Unresolved Tensions

• Definitional scope versus data center load. A Wood Mackenzie analyst flags this as the single largest source of forecast uncertainty: whether DOE ultimately treats data center interconnection and on-site generation and storage as part of the bulk-power system's reliability-function definition will materially change the size of the data-center-specific impact modeled in Section 4.4, and will remain uncertain until DOE issues its rules in December 2026..

• Reliability versus security trade-off. Section 2(b)'s legacy-equipment provisions explicitly require DOE to weigh reliability and safety, availability of secure replacements, and continuity of essential service before ordering disconnection or replacement of already-installed foreign equipment, an implicit acknowledgment that aggressive enforcement against installed transformer fleets could itself create reliability risk in a market already short 15% of needed transformer capacity. This tension is likely to produce a more conservative approach to legacy-equipment enforcement than to prohibitions on new transactions, which is reflected in this report's scenario design (all three Track 1/2 scenarios assume new-transaction restriction is the primary lever, consistent with the order's own text).

• Federal procurement versus private-sector procurement. TheFAR-focused domestic-content provisions in Sections 4(a) and 4(b) apply specifically to federal energy-infrastructure procurement and operate on a slower timeline (180 days for DOE recommendations, then 90 days for the FAR Council to consider them, a combined runway extending into mid-2027) than the equipment-transaction restrictions in Section 2, meaning federal procurement policy is unlikely to be a significant driver of the 2026-2027 market dynamics modeled in Section 6, but could become a more important source ofdemandfor domestic manufacturing from 2027 onward.

• Tariff stacking. Chinese-origin transformer equipment already carries Section 301 tariffs (commonly 25% on affected HTS lines) in addition to any EO 14420 transaction restriction, and transformer manufacturing broadly is exposed to Section 232's 50% steel tariff through grain-oriented electrical steel input costs - meaning EO 14420 is best understood as adding a potential outright transaction bar on top of the existing tariff-driven cost disadvantage for Chinese equipment, rather than as the first or only trade-policy lever affecting this market.

10. Conclusion

Executive Order 14420 arrives at a moment of real strain in the U.S. transformer market: an estimated 15% supply shortfall, lead times of up to four years for the largest units, and roughly 70% import dependence in the large-power-transformer segment. Its effects are unlikely to be uniform. Investor-owned utilities have already spent several years reducing Chinese transformer exposure and may feel the new framework more through compliance, controls, inverters, storage, and legacy-equipment review than through immediate LPT sourcing. Data centers, IPPs, and renewable developers have more exposure to compressed schedules and to equipment categories where Chinese supply is more significant. The scenario analysis in this report suggests that China's role in U.S. large-power-transformer imports could decline substantially if DOE applies the order aggressively, while China's position in inverters and battery-related equipment may prove harder to replace quickly. The exact path cannot be known until DOE's rules, determinations, licenses, and pre-qualification mechanisms take shape, so the figures in Section 6 should be read as directional scenarios rather than forecasts.

For a transformer-sector quality-assurance and market-analysis practice specifically, the analysis in Sections 4 through 6 suggests the near-term commercial opportunities include (a) established non-Chinese suppliers, Mexico, South Korea, Brazil, the Netherlands, Canada, absorbing displaced volume and potentially requiring expanded QA capacity to support accelerated shipment schedules; (b) domestic manufacturers ramping new and expanded capacity (Hitachi Energy, Siemens Energy, and the existing U.S. producer base) ahead of 2028 capacity additions; and (c) advisory services fordata centers, IPPs, and renewable developers navigate DOE's pre-qualification and licensing framework once published, given that this buyer segment carries both the highest exposure and, on the evidence reviewed here, less institutional experience managing geopolitical sourcing restrictions in the bulk-power sec.

References

The White House, "Executive Order 14420: Declaring a National Emergency to Secure the United States Bulk-Power System," August 26, 2026 (source document provided).

Ryan Kennedy, "U.S. bulk-power equipment ban set to worsen critical transformer shortage," pv magazine USA, September 2, 2026 (source document provided).

U.S. Department of Energy, "Securing the United States Bulk-Power System Executive Order" (EO 13920 program page), energy.gov/ceser/securing-united-states-bulk-power-system-eo-13920.

Baker McKenzie Global Sanctions and Export Controls Blog, "The Trump Administration Issues Executive Order 13920 to Protect the US Bulk-Power System from Foreign Adversaries," 2020, and "US Government Issues Executive Order 14420 to Secure US Bulk-Power System," 2026.

Troutman Pepper Locke, "President Biden Suspends Bulk Power System Executive Order," Washington Energy Report, February 2021; and "Currents of Control: What the New Executive Order on Bulk-Power System Equipment Means for Your Business," 2026.

Federal Register, "Prohibition Order Securing Critical Defense Facilities," January 6, 2021 (Doc. 2020-28773).

Davis Wright Tremaine, "Executive Order 14420: Impacts on Energy Projects, Power Supply, and Data Centers," Energy & Environmental Law Blog, August 2026.

mgrid.org, "Trump's Grid Equipment Order Names Inverters, Batteries, and Transformers - But Bans Nothing Yet," August 26, 2026.

Foley & Lardner, "Grid Security Redux: What Executive Order 14420 Means for Utilities, Project Developers, and the Supply Chain," August 2026.

Transformer Magazine, "US order could deepen transformer shortage," 2026.

PV Magazine USA, "U.S. transformer market faces severe supply constraints as lead times extend to four years," May 11, 2026.

U.S. International Trade Commission, Publication 5531, "Large Power Transformers from South Korea" (Section 701/731 investigation staff report).

IndexBox, "Electrical Transformer Imports in The United States Reach $5.6 Billion in 2023," 2024.

TrendEconomy, "USA | Imports and Exports | World | Electrical transformers, static converters | HS 8504, 2012-2023."

Expert Market Research, "United States Large Power Transformer Market Size & Share Report," 2026.

Secure The Grid Coalition, "U.S. Electric Grid Imports More Chinese Transformers," securethegrid.com.

ustariffrates.com, "Section 301 Tariffs" guide, 2026 (Section 301 and Section 232 rate reference).

VIZION API, "US Port Performance 2026: Long Beach, LA & New York," vizionapi.com, 2026 (Figure 2).

IndexBox, "Port of Long Beach Reports 31.7% Cargo Surge in May 2026 Amid Tariff Concerns," 2026.

gCaptain, "West Coast Gateway Ports Hold Ground Despite Tariff Turbulence and Policy Whiplash," 2026; and "California Ports Defy Tariff Turbulence as 2025 Ends Near Records," 2026.

RW Freight, "Los Angeles Import Surge," August 27, 2026.

Supply Chain Dive, "Port of Long Beach cargo volumes duck tariff dips in 2025," 2026.

Federal Reserve Bank of St. Louis (FRED), "Producer Price Index by Industry: Electric Power and Specialty Transformer Manufacturing" (series PCU335311335311), source: U.S. Bureau of Labor Statistics, fred.stlouisfed.org/series/PCU335311335311, accessed September 2026 (Figure 1).

Transformer Magazine, "Siemens Austria Manufactures and Ships the 50th Large Transformer to Texas Power," November 2016.

Invest in Austria, "From Weiz to the World: How Siemens Energy Is Advancing the Energy Transition," investinaustria.at, 2026.

U.S. International Trade Commission, DataWeb (dataweb.usitc.gov/trade) - recommended for direct validation of HTS 8504.21/8504.22/8504.23 country-level import series underlying Section 6.