Closed Core Power Transformer Market size is estimated at USD 7.8 billion in 2024 and is predicted to reach USD 17.3 billion by the end of 2037, expanding at a CAGR of 6.3% during the forecast period, i.e., 2025-2037. In 2025, the industry size of closed core power transformers is assessed at USD 8.3 billion.
The global shift towards cleaner energy sources is significantly pushing the sales of closed core power transformers. Several economies are investing heavily in energy production due to the swiftly increasing electricity consumption rates. For instance, according to the International Energy Agency (IEA), in 2024, the global investment in clean energy is estimated to surpass USD 3 trillion.
Even though governments have a direct or indirect role in shaping capital inflows, the private sector is expected to drive energy investment decisions in the coming years. For instance, in 2023, the corporates held 48.0% of the total investments in the energy sector. The rapidly expanding energy demand is driving a high need for advanced power transformers to effectively and safely transmit and distribute electricity. Also, the rising grid infrastructure investments and well-managed tenders are generating lucrative opportunities for closed core power transformers in high-potential economies such as Africa. A recent study by IEA estimates that Africa invested over USD 40 billion in the clean energy field in 2024.
Growth Drivers
Challenges
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Base Year |
2024 |
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Forecast Year |
2025-2037 |
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CAGR |
6.3% |
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Base Year Market Size (2024) |
USD 7.8 billion |
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Forecast Year Market Size (2037) |
USD 17.3 billion |
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Regional Scope |
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Cooling (Dry Type, Oil-Immersed)
The oil-immersed segment is anticipated to capture 58.9% of the global closed core power transformer market share by 2037 owing to its superior thermal conductivity. The oil-immersed or oil-filled power transformers are set to exhibit widespread demand in the coming years due to their effectiveness in cooling the transformer temperature. Also, oil-immersed closed core power transformers can handle huge power loads compared to their counterparts, which makes them suitable for high-demand applications. Small-scale industries and renewable energy projects highly utilize ground oil-type transformers due to their energy efficiency and durability features.
Mounting (Pad, Pole)
The pad-mounted closed core power transformers segment in the closed core power transformer market is estimated to account for 40.7% of the revenue share through 2037 due to their high installation in underground power distribution projects. They are locked in a steel cabinet and mounted on a concrete platform to effectively and safely maintain voltage fluctuations and energy transmission. The pad-mounted power transformers are available in various phase designs such as single or three-phase, making them versatile to use in several applications. Furthermore, the integration of advanced materials and designs is improving the insulation and cooling techniques of pad-mounted transformers, leading to their high use in utility companies.
Our in-depth analysis of the global market includes the following segments:
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Cooling
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Insulation |
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Winding |
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Mounting |
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Application |
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Asia Pacific Market Forecast
Asia Pacific closed core power transformer market is foreseen to hold 50.8% of the revenue share by 2037 owing to the high investments in renewable energy projects and rapidly increasing industrial activities. The high energy demand from the residential and industrial sectors is pushing the robust sales of power transformers in the region. For instance, according to the International Energy Agency, the national oil companies in Asia invested around USD 23 billion in the clean energy sector in 2023. Furthermore, to meet the COP28 goals, Southeast Asia witnessed a clean energy investment of around USD 26 billion in 2024.
China is a well-known manufacturing hub across the world, the increasing industrial investments in the country are driving high energy demand, ultimately fuelling the sales of closed core power transformers. For instance, as per the IEA analysis, in 2023, the energy demand surpassed 6.4% in China. The increasing manufacturing of solar PV modules and electric vehicles is also contributing to the closed core power transformer market growth in China.
India is witnessing high investment in solar energy projects to align with the sustainability goals, which is driving increasing demand for several advanced electrical technologies including the closed core power transformers. For instance, the country’s installed renewable energy capacity is anticipated to increase to around 170 GW in 2025 from 136.57 GW in 2023. Furthermore, the world’s biggest solar power plant Bhadla Solar Park is located in Rajasthan, India. With more than 2,245 megawatts of capacity, this solar project is boosting the revenue share of closed core power transformer manufacturers.
North America Market Statistics
The North America market is foreseen to generate high-growth opportunities for closed core power transformer manufacturers in the coming years owing to the rapid digital shift in several sectors. The aging infrastructure in the region is increasing the need for new upgrades, fuelling the sales of advanced electrical systems including power transformers.
In the U.S., supportive government initiatives and incentives aimed at improving energy efficiency and reliability are driving investments in cleaner electricity, subsequently pushing the adoption of advanced transformer technologies. For instance, in 2024, the U.S. cleaner energy investment accounted for USD 315 billion to meet the COP28 goals.
Canada has the cleanest and most advanced renewable electricity systems among G8 countries. The country’s significant investment in hydroelectric power plants is augmenting the high demand for advanced and efficient power transformers for effective energy management and distribution and generating millions of job opportunities with over USD 125 billion in benefits.
Key players in the closed core power transformer market are employing strategies such as new product launches, technological advancements, strategic collaborations, and regional expansions to earn high profits. Companies are investing in advanced materials and technologies to develop innovative and space-saving transformers. They are also forming strategic alliances with other players to expand their research and development leading to improved product offerings and market reach.
Some of the key players include:
Author Credits: Dhruv Bhatia
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