Analysis of the New Pattern of Chinas Oil-Immersed Transformer Market

Analysis of the New Pattern of China's Oil-Immersed Transformer Market

    As a core equipment in the power system, the market dynamics of oil-immersed transformers are deeply tied to energy transition, industrial upgrading, and regional development strategies. In 2024, driven by the deepening of the "dual carbon" goals, large-scale implementation of new energy, and the expansion of overseas business under the "Belt and Road" Initiative, China's oil-immersed transformer market has presented a new pattern characterized by steady growth, structural optimization, and regional differentiation. This article will analyze the market from four dimensions—overall market development, voltage level structure, industry application distribution, and regional demand characteristics—to dissect the logic behind market growth and potential opportunities, providing a comprehensive reference for industry participants and investors.

     I Overall Market Development

    In 2024, China's oil-immersed transformer market achieved an overall year-on-year growth of 8%, mainly driven by the explosive growth of the new energy industry. With the accelerated implementation of photovoltaic, wind power, and other projects, investment in power grids has been continuously increased, bringing sustained and strong market demand for oil-immersed transformers.

    Against the backdrop of the "dual carbon" goals, the state has continued to promote the construction of a new-type power system, which not only improves the efficiency of power grid operation but also places higher requirements on the technology and performance of distribution transformers. In addition, Chinese transformer enterprises have been expanding their OEPC (Engineering, Procurement, Construction, Operation) business. As Chinese power engineering general contracting enterprises continue to participate in the construction of power grids and power stations in "Belt and Road" countries overseas, demand has grown steadily, driving the increase in transformer export scale.

      II  Voltage Level Structure

    From the perspective of the voltage level structure of the oil-immersed transformer market in 2024, products with a voltage level of 12kV are the most widely used, accounting for 79% of the market. They mainly serve the distribution network, new energy, industrial, and infrastructure sectors. Followed by 40.5kV products, which account for 18% of the market. These products are widely used in infrastructure and high-energy-consuming industries such as iron and steel and petrochemicals. With the accelerated advancement of urbanization and industrial upgrading, the demand for products of this voltage level is expected to grow continuously.

    In contrast, the market share of 24kV products is only 2%, with a slight year-on-year decline, and their demand is dependent on the drive from new energy projects on the power grid side.

    III  Industry Structure Analysis

    From the perspective of industry applications, the oil-immersed transformer market is most active in the industrial sector, accounting for 45% of the market share. Among them, heavy industries such as iron and steel, automobiles, petrochemicals, and chemicals have large demand, and have higher requirements for the technical stability and load capacity of transformers.

    The power industry accounts for 22%, mainly driven by new energy projects such as photovoltaics and wind power.

    The infrastructure sector accounts for 14%, with applications covering scenarios such as data centers, subways, railways, and airports. With the development of new-type urbanization and the digital economy, the number of related infrastructure projects continues to increase, providing stable support for the oil-immersed transformer market.

    In addition, the construction industry accounts for 17%, but there has been a year-on-year decline, mainly affected by the sluggish real estate market. Orders mainly come from projects such as residential buildings, industrial parks, office buildings, and complexes, and the market performance is relatively fragmented.

    IV  Regional Distribution Characteristics  

    From the perspective of regional market distribution, the use of oil-immersed transformers is most concentrated in East China, accounting for 27% of the market. This region has a solid industrial foundation, active economy, and strict implementation of environmental protection policies. The rapid development of the semiconductor and pharmaceutical industries has driven sustained demand for high-performance transformers.

    North China ranks second, accounting for 17.2%. Relying on the regional advantages of the Beijing-Tianjin-Hebei region, traditional energy, mining industries, as well as emerging industries such as electronic manufacturing and fine chemicals, have provided strong support for the transformer market.

    South China, as an emerging economic center, has a strong industrial foundation and development potential. Especially in the Guangdong-Hong Kong-Macao Greater Bay Area, subway and airport projects are frequently launched, leading to widespread application of oil-immersed transformers.

    Central China, driven by the national "Rise of Central China" strategy, has accelerated its economic development, with synchronous growth in demand for dry-type transformers and oil-immersed products.

    Although the overall market size of the Northwest, Southwest, and Northeast regions is relatively small, their market potential has gradually been released, benefiting from the expansion of industries such as photovoltaics and pharmaceuticals. Among them, infrastructure construction in the Southwest region has accelerated, while the Northwest region has become a key area for clean energy development.

    Looking ahead, with the further increase in new energy penetration, the accelerated construction of a new-type power system, and the continuous expansion of overseas markets, the oil-immersed transformer industry will usher in three major opportunities: first, the demand for low-energy-consumption and high-stability products adapted to new energy scenarios will expand; second, enterprises with OEPC full-chain service capabilities will be more competitive in the overseas market; third, the potential of regions such as Central China, the Northwest, and the Southwest will be further released. Industry participants need to focus on technological R&D and in-depth regional development to seize opportunities in market competition