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    Oil filled Transformer Market

    ID: MRFR/E&P/29175-HCR
    128 Pages
    Priya Nagrale
    October 2025

    Oil-filled Transformer Market Research Report By Voltage Rating (Below 100 kV, 100 - 220 kV, 220 - 500 kV, Above 500 kV), By Cooling Type (Oil-immersed Natural Air Natural (ONAN), Oil-immersed Forced Air Natural (OFAF), Oil-immersed Forced Air Forced (OFAF), Oil-immersed Directed Flow Forced Air Forced (ODFAF), Oil-immersed Liquid Immersion (OIL), Oil-immersed Gas Immersion (OGI), Oil-immersed Vacuum (OV), Oil-immersed Pressure Relief), By Capacity (Below 50 MVA, 50 - 100 MVA, 100 - 200 MVA, 200 - 500 MVA, Above 500 MVA), By Application (Gen...

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    Oil filled Transformer Market Infographic
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    Oil filled Transformer Market Summary

    The Global Oil-filled Transformer Market is projected to grow from 11.47 USD Billion in 2024 to 15.91 USD Billion by 2035.

    Key Market Trends & Highlights

    Oil-filled Transformer Key Trends and Highlights

    • The market is expected to experience a compound annual growth rate (CAGR) of 3.03% from 2025 to 2035.
    • By 2035, the market valuation is anticipated to reach 15.9 USD Billion, reflecting a steady growth trajectory.
    • in 2024, the market is valued at 11.47 USD Billion, indicating a robust starting point for future expansion.
    • Growing adoption of renewable energy sources due to increasing demand for efficient power distribution is a major market driver.

    Market Size & Forecast

    2024 Market Size 11.47 (USD Billion)
    2035 Market Size 15.91 (USD Billion)
    CAGR (2025-2035) 3.02%

    Major Players

    ABB, Siemens, General Electric, Schneider Electric, Mitsubishi Electric, Siemens Energy, Alstom, Hyundai Electric Energy Systems, Eaton, LS Electric, Crompton Greaves, GE Power, Powerstar Transformers, CG Power and Industrial Solutions, Toshiba

    Oil filled Transformer Market Trends

    The global Oil-filled Transformer market is projected to exhibit robust growth in the coming years, driven by increasing demand for reliable and efficient power distribution systems. Key market drivers include aging infrastructure, expanding renewable energy generation, and growing urbanization. Opportunities for manufacturers lie in developing advanced transformers with higher efficiency, durability, and environmental sustainability. Recent trends include the adoption of digitalization and smart grid technologies, as well as the emergence of new materials and designs for transformer manufacturing. By leveraging these trends and addressing the key drivers, Oil-filled Transformer manufacturers can position themselves for long-term success in the global market.

    The global oil-filled transformer market is poised for growth as utilities increasingly prioritize energy efficiency and reliability in their infrastructure investments.

    U.S. Department of Energy

    Oil filled Transformer Market Drivers

    Rising Demand for Electricity

    The increasing global demand for electricity is a primary driver of the Global Oil-filled Transformer Market Industry. As urbanization and industrialization continue to expand, particularly in developing nations, the need for reliable power distribution systems becomes critical. This trend is expected to contribute to the market's growth, with the industry projected to reach 11.5 USD Billion in 2024. The demand for oil-filled transformers, known for their efficiency and reliability, is likely to rise as utilities and industries seek to enhance their infrastructure to meet the growing energy needs.

    Market Segment Insights

    Oil-filled Transformer Market Segment Insights:

    Oil-filled Transformer Market Segment Insights:

    Oil-filled Transformer Market Voltage Rating Insights

    Oil-filled Transformer Market Voltage Rating Insights

    The Global Oil-filled Transformer Market is segmented by Voltage Rating into Below 100 kV, 100 - 220 kV, 220 - 500 kV, and Above 500 kV. Among these segments, the 100 - 220 kV segment is expected to hold the largest share of the market in 2023 and is projected to continue to dominate the market throughout the forecast period.

    The growth of this segment can be attributed to the increasing demand for power transmission and distribution in developing countries, where the majority of the population lives in rural areas and requires access to reliable and affordable electricity.The Below 100 kV segment is also expected to witness significant growth, owing to the rising demand for small-scale transformers in residential and commercial applications. The 220 - 500 kV segment is expected to grow at a steady pace, driven by the increasing demand for high-voltage transformers in industrial and utility applications.

    The Above 500 kV segment is expected to experience moderate growth, as these transformers are typically used in large-scale power transmission projects and require specialized expertise and infrastructure. Overall, the Global Oil-filled Transformer Market is expected to witness significant growth in the coming years, driven by the increasing demand for electricity and the need for efficient and reliable power transmission and distribution systems.

    Source: Primary Research, Secondary Research, Market Research Future Database and Analyst Review

    Oil-filled Transformer Market Cooling Type Insights

    Oil-filled Transformer Market Cooling Type Insights

    The Global Oil-filled Transformer Market is segmented by cooling type into Oil-immersed Natural Air Natural (ONAN), Oil-immersed Forced Air Natural (OFAF), Oil-immersed Forced Air Forced (OFAF), Oil-immersed Directed Flow Forced Air Forced (ODFAF), Oil-immersed Liquid Immersion (OIL), Oil-immersed Gas Immersion (OGI), Oil-immersed Vacuum (OV), and Oil-immersed Pressure Relief.

    Among these, the Oil-immersed Natural Air Natural (ONAN) segment held the largest market share in 2023, accounting for over 40% of the Global Oil-filled Transformer Market revenue.The Oil-immersed Forced Air Natural (OFAF) segment is expected to witness the highest growth rate over the forecast period due to its increasing adoption in power plants and industrial applications. The Oil-immersed Forced Air Forced (OFAF) segment is also expected to grow at a significant rate, owing to its improved efficiency and reliability.

    The Oil-immersed Directed Flow Forced Air Forced (ODFAF) segment is expected to gain traction in the coming years, as it offers superior cooling performance and reduced maintenance costs. The Oil-immersed Liquid Immersion (OIL) segment is expected to remain stable over the forecast period due to its wide application in high-voltage and power transmission applications.The Oil-immersed Gas Immersion (OGI) segment is expected to grow at a moderate rate due to its increasing adoption in renewable energy applications.

    The Oil-immersed Vacuum (OV) segment is expected to witness a decline in its market share over the forecast period due to its high cost and complex maintenance requirements. The Oil-immersed Pressure Relief segment is expected to remain niche over the forecast period, due to its limited applications.

    Oil-filled Transformer Market Capacity Insights

    Oil-filled Transformer Market Capacity Insights

    The Global Oil-filled Transformer Market is segmented by capacity into Below 50 MVA, 50 - 100 MVA, 100 - 200 MVA, 200 - 500 MVA, and Above 500 MVA. Among these, the 100 - 200 MVA segment is expected to hold the largest market share in 2023, accounting for around 30% of the Global Oil-filled Transformer Market revenue. This is due to the increasing demand for transformers in the power distribution and transmission networks.

    The segment is also expected to witness significant growth over the forecast period, owing to the rising investments in infrastructure development in emerging economies.The Below 50 MVA segment is expected to experience steady growth over the forecast period, driven by the increasing demand for transformers in industrial and commercial applications. The segment is also expected to benefit from the growing adoption of renewable energy sources, which require transformers to convert the generated power to usable voltage levels.

    The 50 - 100 MVA segment is expected to witness moderate growth over the forecast period, owing to the increasing demand for transformers in the power generation and transmission sectors.The segment is also expected to benefit from the growing trend of grid modernization, which involves the replacement of aging transformers with more efficient and reliable models. The 200 - 500 MVA segment is expected to experience steady growth over the forecast period, driven by the increasing demand for transformers in the power transmission and distribution networks.

    The segment is also expected to benefit from the growing investments in renewable energy projects, which require transformers to convert the generated power to usable voltage levels.The Above 500 MVA segment is expected to witness significant growth over the forecast period, driven by the increasing demand for transformers in the power transmission and distribution networks. The segment is also expected to benefit from the growing trend of grid modernization, which involves the replacement of aging transformers with more efficient and reliable models.

    Oil-filled Transformer Market Application Insights

    Oil-filled Transformer Market Application Insights

    The Global Oil-filled Transformer Market is segmented by Application into Generation, Transmission, Distribution, Industrial, Railway, and Renewable Energy. Among these segments, the Distribution segment is expected to dominate the market with a market share of over 45% in 2023. The growth of the Distribution segment can be attributed to the increasing demand for electricity from residential, commercial, and industrial sectors. The Transmission segment is expected to be the second-largest segment, with a market share of over 30% in 2023.

    The growth of the Transmission segment can be attributed to the increasing need for efficient transmission of electricity over long distances.The Generation segment is expected to grow at a steady pace, with a market share of over 15% in 2023. The growth of the Generation segment can be attributed to the increasing demand for electricity from renewable energy sources, such as solar and wind power. The Industrial segment is expected to grow at a moderate pace, with a market share of over 5% in 2023.

    The growth of the Industrial segment can be attributed to the increasing demand for electricity from industrial facilities. The Railway segment is expected to grow at a slow pace, with a market share of less than 5% in 2023.The growth of the Railway segment can be attributed to the increasing demand for electricity from railways. The Renewable Energy segment is expected to grow at a rapid pace, with a market share of less than 5% in 2023. The growth of the Renewable Energy segment can be attributed to the increasing demand for electricity from renewable energy sources.

    Oil-filled Transformer Market Core Type Insights

    Oil-filled Transformer Market Core Type Insights

    The Global Oil-filled Transformer Market is segmented into Core Type, which includes Shell Type Core, Core Type Core, and Armored Core. The Shell Type Core segment is expected to hold the largest market share in 2023, accounting for around 40% of the global market revenue. This is primarily due to its high efficiency and reliability, making it suitable for various applications in power transmission and distribution systems.

    The Core Type Core segment is expected to grow at a CAGR of 3.5% during the forecast period, driven by its compact size and cost-effectiveness.The Armored Core segment is expected to witness a moderate growth rate due to its ability to withstand harsh environmental conditions and provide enhanced protection against mechanical damage.

    Get more detailed insights about Oil-filled Transformer Market Research Report- Global Forecast till 2034

    Regional Insights

    The Global Oil-filled Transformer Market is segmented into North America, Europe, APAC, South America, and MEA. The North American region is expected to account for the largest market share in 2023 and is projected to grow at a CAGR of 2.8% from 2024 to 2032. The European region is expected to account for the second-largest market share in 2023 and is projected to grow at a CAGR of 2.6% from 2024 to 2032.

    The APAC region is expected to account for the third-largest market share in 2023 and is projected to grow at a CAGR of 3.1% from 2024 to 2032.The South American region is expected to account for the fourth-largest market share in 2023 and is projected to grow at a CAGR of 2.9% from 2024 to 2032. The MEA region is expected to account for the smallest market share in 2023 and is projected to grow at a CAGR of 3.2% from 2024 to 2032.

    Oil-filled Transformer Market Regional Insights

    Source: Primary Research, Secondary Research, Market Research Future Database and Analyst Review

    Key Players and Competitive Insights

    Major players in the Oil-filled Transformer Market industry are continuously focusing on the development of technologically advanced products to meet the evolving needs of the customers. The competitive landscape of the Oil-filled Transformer Market is characterized by the presence of both global and local players, including ABB, Siemens, General Electric, and Schneider Electric. These companies are investing heavily in research and development to enhance the efficiency and reliability of their products. They are also expanding their production capacities to meet the growing demand for Oil-filled Transformers.Among the leading players, ABB is a key participant in the Oil-filled Transformer Market.

    The company has a strong portfolio of Oil-filled Transformers, ranging from small distribution transformers to large power transformers. ABB's transformers are known for their quality, reliability, and efficiency. The company has a global presence and serves customers in various industries, including power utilities, industrial, and commercial sectors.Another major player in the Oil-filled Transformer Market is Siemens. The company offers a wide range of Oil-filled Transformers, including power, distribution, and special-purpose transformers. Siemens' transformers are designed to meet the specific requirements of different applications.

    The company has a strong focus on innovation and develops advanced transformer technologies to improve performance and reduce environmental impact. Siemens has a global presence and serves customers in various countries.

    Key Companies in the Oil filled Transformer Market market include

    Industry Developments

    • Q2 2024: ABB inaugurates new transformer manufacturing facility in India ABB announced the opening of a new transformer manufacturing plant in India, aimed at expanding its production capacity for oil-filled transformers to meet growing demand in the region.
    • Q1 2024: Siemens launches new eco-friendly oil-filled transformer series Siemens introduced a new line of oil-filled transformers designed to improve energy efficiency and reduce environmental impact, targeting utility and industrial customers.
    • Q2 2024: GE secures $120 million contract for oil-filled transformers in Brazil General Electric was awarded a $120 million contract to supply oil-filled transformers for a major grid modernization project in Brazil.
    • Q3 2024: Toshiba opens new transformer R&D center in Japan Toshiba inaugurated a research and development center focused on advancing oil-filled transformer technology and reliability.
    • Q1 2025: CG Power wins contract for oil-filled transformers in Middle East CG Power and Industrial Solutions Ltd. announced a contract win to supply oil-filled transformers for a large-scale power transmission project in the Middle East.
    • Q2 2025: Schneider Electric partners with Voltamp Transformers for joint manufacturing venture Schneider Electric entered into a partnership with Voltamp Transformers to jointly manufacture oil-filled transformers for the African market.
    • Q2 2024: Eaton launches smart monitoring system for oil-filled transformers Eaton unveiled a new smart monitoring system designed to enhance the operational reliability and predictive maintenance of oil-filled transformers.
    • Q3 2024: Virginia Transformer Corp expands US manufacturing capacity Virginia Transformer Corp announced the expansion of its US manufacturing facilities to increase output of oil-filled transformers for domestic and export markets.
    • Q4 2024: BHEL secures major order for oil-filled transformers from Indian utility BHEL received a significant order to supply oil-filled transformers for a state-run utility's grid upgrade project in India.
    • Q1 2025: Hitachi Energy acquires transformer service company in Europe Hitachi Energy completed the acquisition of a European transformer service company to strengthen its oil-filled transformer maintenance and support capabilities.
    • Q2 2025: Jinpan International USA Ltd announces new product line of high-voltage oil-filled transformers Jinpan International USA Ltd launched a new product line of high-voltage oil-filled transformers targeting utility-scale renewable energy projects.
    • Q3 2025: CG Power appoints new CEO to lead transformer business CG Power and Industrial Solutions Ltd. announced the appointment of a new CEO to oversee its global oil-filled transformer operations.

    Future Outlook

    Oil filled Transformer Market Future Outlook

    The Oil-filled Transformer Market is projected to grow at a 3.02% CAGR from 2025 to 2035, driven by increasing energy demands, infrastructure upgrades, and technological advancements.

    New opportunities lie in:

    • Invest in smart grid technologies to enhance transformer efficiency and reliability.
    • Develop eco-friendly insulating oils to meet sustainability regulations.
    • Expand into emerging markets with tailored solutions for local energy needs.

    By 2035, the Oil-filled Transformer Market is expected to achieve robust growth, reflecting evolving energy landscapes and technological innovations.

    Market Segmentation

    Oil-filled Transformer Market Capacity Outlook

    • Generation
    • Transmission
    • Distribution
    • Industrial
    • Railway
    • Renewable Energy

    Oil-filled Transformer Market Regional Outlook

    • North America
    • Europe
    • South America
    • Asia Pacific
    • Middle East and Africa

    Oil-filled Transformer Market Core Type Outlook

    • North America
    • Europe
    • South America
    • Asia Pacific
    • Middle East and Africa

    Oil-filled Transformer Market Application Outlook

    • Shell Type Core
    • Core Type Core
    • Armored Core

    Oil-filled Transformer Market Cooling Type Outlook

    • Below 50 MVA
    • 50 - 100 MVA
    • 100 - 200 MVA
    • 200 - 500 MVA
    • Above 500 MVA

    Oil-filled Transformer Market Voltage Rating Outlook

    • Oil-immersed Natural Air Natural (ONAN)
    • Oil-immersed Forced Air Natural (OFAF)
    • Oil-immersed Forced Air Forced (OFAF)
    • Oil-immersed Directed Flow Forced Air Forced (ODFAF)
    • Oil-immersed Liquid Immersion (OIL)
    • Oil-immersed Gas Immersion (OGI)
    • Oil-immersed Vacuum (OV)
    • Oil-immersed Pressure Relief

    Report Scope

    Report Attribute/Metric Details
    Market Size 2024   11.47 (USD Billion)
    Market Size 2025   11.82 (USD Billion)
    Market Size 2035 15.91 (USD Billion)
    Compound Annual Growth Rate (CAGR) 3.02% (2025 - 2035)
    Report Coverage Revenue Forecast, Competitive Landscape, Growth Factors, and Trends
    Base Year 2024
    Market Forecast Period 2025 - 2035
    Historical Data 2019 - 2023
    Market Forecast Units USD Billion
    Key Companies Profiled Siemens, Mitsubishi Electric, Siemens Energy, Alstom, Schneider Electric, Hyundai Electric Energy Systems, Eaton, ABB, LS Electric, Crompton Greaves, GE, Powerstar Transformers, CG Power and Industrial Solutions, Toshiba
    Segments Covered Voltage Rating, Cooling Type, Capacity, Application, Core Type, Regional
    Key Market Opportunities Smart grid infrastructure development Growing demand for renewable energy sources Increasing industrialization in developing economies Upgrading of aging power distribution networks Government initiatives for energy efficiency improvement
    Key Market Dynamics Rising demand for renewable energy Increasing urbanization and industrialization Technological advancements Growing focus on energy efficiency Government initiatives for grid modernization.
    Countries Covered North America, Europe, APAC, South America, MEA

    FAQs

    What is the expected market size of the Global Oil-filled Transformer Market in 2023?

    The Global Oil-filled Transformer Market is expected to reach a valuation of 11.47 Billion USD in 2024.

    What is the projected CAGR of the Global Oil-filled Transformer Market?

    The Global Oil-filled Transformer Market is projected to grow at a CAGR of 3.20% from 2025 to 2034.

    Which region is expected to hold the largest market share in the Global Oil-filled Transformer Market?

    North America is expected to hold the largest market share in the Global Oil-filled Transformer Market.

    What are the key applications of Oil-filled Transformers?

    Key applications of Oil-filled Transformers include power distribution, transmission, and industrial settings.

    Who are some of the key competitors in the Global Oil-filled Transformer Market?

    Some of the key competitors in the Global Oil-filled Transformer Market include ABB, Siemens, General Electric, and Schneider Electric.

    What factors are driving the growth of the Global Oil-filled Transformer Market?

    Growing demand for reliable and efficient power distribution and transmission systems is driving the growth of the Global Oil-filled Transformer Market.

    What challenges is the Global Oil-filled Transformer Market facing?

    Challenges faced by the Global Oil-filled Transformer Market include environmental concerns and competition from alternative technologies.

    What are the key trends in the Global Oil-filled Transformer Market?

    Key trends in the Global Oil-filled Transformer Market include the adoption of smart grid technologies and the development of more efficient and compact designs.

    What is the expected market size of the Global Oil-filled Transformer Market in 2032?

    The Global Oil-filled Transformer Market is expected to reach a valuation of 15.44 Billion USD by 2034.

    What are the major growth opportunities for the Global Oil-filled Transformer Market?

    Major growth opportunities for the Global Oil-filled Transformer Market include increasing investment in infrastructure development and the adoption of renewable energy sources.

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