The U.S. power sector has been tight for years. Data centers keep getting bigger, manufacturing is coming back, and transport and industry are electrifying fast. Load is growing quickly. The grid is old, and supply of key equipment - transformers, disconnectors, surge arresters - is tight. These pressures have converged, affecting both project schedules and reliability.
Data centers are the most visible driver. Large computing clusters need substantial power and high supply stability. Connecting them to the grid often requires new substations, step-up transformers, switchgear and protection systems. Projects are queuing for interconnection. Grid operators are speeding up reviews, but equipment deliveries are slow. Lead times for large power transformers have stretched from around a year to several years, and prices have risen. High-voltage circuit breakers, switchgear and disconnectors are also hard to source. Many U.S. grid facilities have been running beyond their design life, and import reliance for large power transformers is high. Any supply chain disruption pushes projects back further.
The policy environment is shifting too. The U.S. side has tightened scrutiny of imported grid equipment in recent years. Executive Order 14420, signed in August 2026, declared a national emergency and restricted acquisition, importation, transfer or installation of foreign-produced bulk-power system equipment. The order covers transformers, inverters, battery storage systems, circuit breakers, generators, protective relays and industrial control systems. Firmware, software and remote-access capabilities are also in scope. For equipment already installed, the Department of Energy may require utilities to identify, isolate, monitor, disconnect or replace specific components. These moves are pushing manufacturing toward local production. Siemens Energy, Hitachi Energy and several South Korean equipment makers are building or expanding plants in the U.S., with switchgear and transformer capacity gradually coming online.
Grid investment is accelerating in parallel. The Department of Energy has provided large loans for transmission projects. In July 2026, a loan of up to $3.26 billion was closed with AEP Texas to build, rebuild or reconductor more than 2,800 miles of transmission lines, roughly doubling the capacity of upgraded infrastructure and saving an estimated $685 million for customers over 30 years. FERC has also ordered regional grid operators to reform rules for connecting large users such as data centers, shortening approval timelines. Once transmission lines and substations break ground, demand for transformers, disconnectors, surge arresters, circuit breakers and switchgear follows. Every line and every substation needs this equipment.
Extreme weather is testing the grid as well. Severe cold in early 2026, summer heat and storms pushed power systems close to their limits multiple times. PJM, the largest U.S. grid operator, issued power warnings, and spot prices in Virginia - home to the world's largest data center cluster - spiked above $600 per megawatt-hour. Surge arresters play a critical role in lightning and overvoltage protection, shielding transformers and switchgear. Disconnectors are used for isolation during maintenance, ensuring work safety. Transformers sit at the core of voltage conversion and power distribution, and their reliability directly determines supply quality. The more extreme the weather, the greater the need for maintenance and replacement.
On the market side, U.S. power equipment remains in an expansion cycle. Transformer demand from data centers continues to grow, with both high-voltage and medium-voltage products tight. The supply-demand imbalance is unlikely to resolve soon, and the large transformer market will keep growing at a relatively fast pace. The contradiction is straightforward: demand is rising fast, while capacity for transformers, switchgear and circuit breakers cannot keep up in the short term, and import scrutiny further limits supply sources. Lead times and price pressure are unlikely to ease soon. Grid investment and extreme-weather maintenance are creating sustained space for the power equipment industry. For companies interested in the U.S. market, the opportunity is significant, but compliance, supply chain and localization requirements are higher than before.