The global transformer industry is facing one of the most severe supply bottlenecks in decades. Lead times for large power transformers, which typically ran between 7 and 14 months before the pandemic, have stretched well beyond 24 months in most major markets. In North America and parts of Europe, delivery timelines for large units now push past four to five years in some cases.
According to industry data, U.S. average lead times for standard power transformers reached approximately 128 weeks (nearly two and a half years) as of mid-2025, while generator step-up transformers averaged 144 weeks. Some specialized orders have extended to four years. The situation has become so acute that transformer waiting times alone can now exceed three years.
This is not a temporary disruption. It is a structural crisis driven by converging forces: years of underinvestment in grid infrastructure, a sudden surge in post-pandemic construction and electrification, explosive growth in AI data centers, and volatility in critical raw materials such as grain-oriented electrical steel (GOES) and copper.
Power-transformer demand has risen 119% since 2019, and distribution-transformer demand is up 34%. Demand for generator step-up transformers has grown an astonishing 274% over the same period, driven by faster-than-expected load growth, an expanding clean-energy pipeline, renewable energy integration, data center expansion, and a wave of end-of-life replacements.
Data centers alone have become a major demand driver. S&P Global forecasts U.S. data center grid-power demand will rise 22% in 2025 alone and nearly triple by 2030. The consultancy reported that generator step-up transformer lead times exceeded 160 weeks in the first quarter of 2026.
On paper, global OEM production capacity stands at around 3.25 million MVA, yet actual output still lags demand by approximately 2%. Manufacturing bottlenecks, raw materials shortages, skilled labor shortages, testing capacity constraints, and logistics friction have all contributed to the gap.
Large power transformers are custom-engineered units that cannot be mass produced. Each must be built to specific project requirements, individually tested and certified. OEM utilization rates for large power transformer facilities currently average around 70% globally and are projected to reach 80% by 2030, leaving little room to absorb new demand spikes.
Nearly all transformer cores are made of grain-oriented electrical steel (GOES)—a material also used in electric motors and EV chargers. Copper and insulation materials have also experienced severe market volatility and shortages. These material constraints have pushed transformer prices to as high as 2.6 times their pre-pandemic levels in real terms in some cases.
The supply crunch is not uniform across regions. Today, lead times in North America and Europe extend up to 60 months in some cases, compared to roughly 12 months in the Asia-Pacific (APAC) region. APAC accounts for approximately 40% of the global transformer market, and China—as the world’s largest transformer producer—has become a critical source of supply for global markets.
In 2025, China’s transformer industry output exceeded RMB 300 billion, with production accounting for over 50% of the global total. Chinese transformer exports surged 36.3% year-over-year in 2025, and the first two months of 2026 saw export growth accelerate to 41.42%. This surge reflects the acute global demand and the growing reliance on Chinese manufacturing capacity to fill the supply gap.
Xinhong Electrical (Jiangsu Xinhong Electrical Equipment Co., Ltd.) is a leading Chinese manufacturer of oil immersed transformers, dry transformers, and prefabricated substations. As a distinguished supplier for the State Grid Corporation of China, we understand the urgency facing utilities, EPCs, and industrial operators around the world.
Here is how we are helping our customers navigate the global transformer shortage:
We have built a resilient and vertically integrated supply chain that spans the entire production process—from raw material procurement to final testing. By maintaining strategic partnerships with key suppliers of grain-oriented electrical steel, copper, and insulation materials, we secure priority access to critical components. Our proximity to China’s comprehensive transformer industrial ecosystem—the world’s most complete production system—gives us a distinct advantage in material availability and cost efficiency.
Unlike many OEMs operating at or near full capacity, Xinhong Electrical maintains flexible production lines that allow us to accommodate urgent orders and custom specifications. Our manufacturing facility produces a diverse range of oil immersed transformer products with rated capacities from 50kVA to 3000kVA. We offer tailored transformer solutions to meet the exact specifications of our clients.
Whether you need an oil immersed transformer China source for a utility project, an oil immersed transformer vs cast resin comparison for a specific application, or a cast resin transformer for indoor installations, our flexible production approach enables us to prioritize customer delivery schedules.
Xinhong Electrical manufactures a full spectrum of transformer solutions:
Oil Immersed Transformers: Our three-phase oil immersed transformer series delivers high efficiency, low losses, and exceptional reliability for power transmission and distribution systems. Available in voltage ratings from 10kV to 35kV.
Dry Transformers: Our dry transformer (cast resin) offerings provide safe, maintenance-free solutions for indoor and fire-sensitive applications.
Prefabricated Substations: As a leading prefabricated substation manufacturers in China, we produce compact, easy-to-install container-type substations that combine transformers, switchgear, and control systems in a single integrated solution.
Testing capacity constraints have become a major bottleneck for many transformer manufacturers. At Xinhong Electrical, we have invested in state-of-the-art testing facilities that enable us to conduct comprehensive quality assurance without relying on third-party testing queues. This in-house capability significantly reduces the time from production completion to shipment.
Industry experts have emphasized that earlier collaboration between operators, OEMs, and suppliers is reducing delivery risk. When grid planners engage manufacturers earlier, factories can align tooling, testing capacity, and labor planning to real demand. Xinhong Electrical actively works with customers to forecast requirements, secure production slots, and plan logistics well in advance—reducing the uncertainty that plagues the current market.
Proven Track Record: We are a certified supplier for the State Grid Corporation of China, demonstrating our reliability and quality standards.
Global Reach: With exports to markets worldwide, we understand international standards and certification requirements.
Customization Capability: From standard designs to bespoke engineering, we deliver transformers tailored to your project specifications.
Competitive Lead Times: While many manufacturers quote delivery windows of 24 months or more, Xinhong Electrical offers significantly shorter timelines through our optimized production and supply chain processes.
Full-Service Solutions: Beyond transformers, we provide prefabricated substation solutions and high and low voltage switchgear, making us a one-stop partner for your electrical infrastructure needs.
The global transformer shortage is not a passing challenge—it is a structural reality that will persist for years. Manufacturers have announced billions in capacity expansion commitments, but new capacity takes years to deliver. In the meantime, project developers, utilities, and industrial operators need reliable partners who can deliver.
Xinhong Electrical combines the manufacturing scale of China’s world-leading transformer industry with the agility and customer focus of a dedicated partner. Whether you are evaluating oil immersed transformer vs cast resin for your next project, sourcing an oil immersed transformer China supplier, or seeking a trusted prefabricated substation manufacturers partner, we are here to help you overcome supply chain challenges and keep your projects on track.
Contact Xinhong Electrical today to discuss your transformer requirements and learn how we can help you shorten lead times and secure the equipment you need.
Xinhong Electrical – Your Trusted Partner for Oil Immersed Transformers, Dry Transformers, and Prefabricated Substations
