High Voltage Oil Insulated Switchgear Market Size - By Current, By Application, Analysis, Share, & Forecast, 2025 - 2034

High Voltage Oil Insulated Switchgear Market Size

The global high voltage oil insulated switchgear market was valued at USD 1 billion in 2024 and is estimated to reach the value of USD 1.8 billion by 2034, growing at a CAGR of 5.8% from 2025 to 2034. The market is growing steadily due to its thermal stability, flame resistant nature, and oil dielectric strength of an excellent quality which augurs well for crucial roles during an oil spill in transmission and distribution systems. The need to improve outdated electrical arrangements combined with reliable power distribution systems is driving the demand for dependable power cautiously.
 

In high-voltage applications located in remote areas with harsh conditions, oil-insulated switchgear is ideal due to its robustness and resistance to harsh environments. At the same time, carbon emissions pose immense concern and there's a need to control carbon emissions. Additionally, France enables nuclear power alongside renewable sources, hitting a record 95% low carbon energy electricity production in 2024. The durability of the components further boosts oil-insulated switchgear reliability for long operational periods.
 

Governments and utility companies are investing in upgrading outdated grid infrastructure to ensure grid reliability and reduce power outages. As high-voltage transmission networks expand, the demand for OIS, which provides reliable operation in extreme conditions, continues to rise. Rapid urbanization, industrialization, and the growing need for uninterrupted power supply have resulted in an increase in high-voltage transmission lines. Oil-insulated switchgear is essential in maintaining high-voltage circuits, contributing to its rising adoption.
 

The change from traditional energy sources to solar and wind reserves is propelling the need for new systems for high voltage power transmission. These renewable energy projects necessitate the use of high voltage switchgear of OIS to transmit power over long distances. Brazilian solar energy production increased in 2024, adding over 10.9 GW of new capacity, with solar PV contributing 5630 MW which brought the total installed capacity to 52 GW.
 

This high voltage oil insulated switchgear market is also observing advancements in the eco-friendly concern of insulating oils as insulation technologies are improving. The use of oil-insulated switchgear is expected to rise with the development of bio-based and synthetic oils which have lower environmental impact and enhanced dielectric properties. Moreover, contemporary innovations in monitoring and diagnostic technologies facilitate real-time condition assessment, further reducing maintenance and augmenting the lifespan of switchgear systems.
 

High Voltage Oil Insulated Switchgear Market Trends

• One of the most notable developments in the high voltage OIS market is the adoption of bio-based and synthetic insulating oils. Although mineral oils are effective, their use in high voltage applications poses serious environmental threats due to leakage and contamination possibilities. To mitigate these problems, manufacturers are now offering synthetic and biodegradable insulating fluids with lower ecological risks and better thermal and dielectric properties. These materials also qualify as eco-friendly and fully compliant with harsh environmental regulations.
   
• Another developing trend is the adoption of digital technologies and condition monitoring systems into oil-insulated switchgear. Utilities are adopting smart grid technologies that permit the real-time observation of switchgear performance to aid in predictive maintenance and lower the likelihood of unanticipated failures significantly. Critical parameters such as oil temperature, pressure, and the insulation condition can be monitored continuously using sophisticated sensors and IoT-based solutions.
   
• The adoption of oil-insulated switchgear is being propelled within the region as both APAC and European nations are investing in the modernization of aging electricity grids as well as the expansion of transmission infrastructure to cater to increasing demand for electrical power. In a recent announcement by China’s National Development and Reform Commission (NDRC), a new action plan for the power system aims to add capacity for over 200GW of new wind and solar integration to the grid on an annual basis between 2025 and 2027.
   
• The industrialization boom accompanied by amplifying electrification efforts, particularly in the Asia Pacific and Middle East & Africa, are driving emerging economies. Oil & Gas sector is witnessing a surge in demand, which in turn is propelling the requirement for oil insulated switchgear. Furthermore, the Middle East retains the title of a chief oil producing region and internationally, Saudi Arabia continued to spearhead global oil production, hitting a peak of approximately 10.4 million barrels per day (bpd) in 2024.
   
• With constant improvements in insulation technologies and the adoption of digital solutions, along with an increased focus on sustainable practices, the market for high voltage oil insulated switchgear is expected to grow at a relatively constant pace. The prospective market will be driven by demand from investments towards grid modernization, renewable resources, and green switchgear technologies.
   

High Voltage Oil Insulated Switchgear Market Analysis

• The high voltage oil insulated switchgear industry was valued at USD 920 million, USD 990 million and USD 1 billion in 2022, 2023 and 2024 respectively. This growth is primarily driven by expanding urbanization and rising industrial activities, which necessitate reliable power distribution networks, thereby increasing the demand for high voltage oil insulated switchgear.
   
• The high voltage oil insulated switchgear market from AC segment is expected to reach over USD 1.5 billion by 2034 since AC transmission systems continue to be the preferred option for high power transmission internationally owing to their economic nature, easier voltage regulation, and straightforward design. Considering that most power generation sources such as renewable energy sources, traditional power plants, and other energy generation facilities provide electricity in its AC form, the importance of AC switchgear for power flow control and system stability further escalates.
   
• The increasing preference of clean energy as an oil primary energy source for various reasons is propelling the need for high voltage oil insulated switchgear. Italy saw 41.2% of their energy demand being fulfilled through renewable sources in 2024, including an increase onshore and offshore wind expansion. Italy’s renewable energy targets are expected to be achieved by incorporating wind energy to a greater extent. Such policies will boost the high voltage oil insulated switchgear market in the forthcoming years.
   
• The unabated power supply requirement for industrial activities and large utility networks drives the growth of the AC segment. The oil and gas, mining and even manufacturing industries along with utility companies prefer the use of AC switchgear because of its established dependability and high fault current handling capability. Countries are increasing their oil production to meet demand, thereby creating a demand for switchgear in the projects. According to estimates, Russia's oil production will reach between 515 and 520 million tonnes by 2025, suggesting that the demand in the near future will be considerable.
   
• The DC segment is likely to exceed USD 220 million by 2034 mainly due to the rise in funding for data centers, EV charging infrastructure, and microgrids, all necessitating dependable DC switchgear. Also, the management of DC circuits is more effective with oil insulated switchgear due to its superior arc quenching capabilities.
   

• Based on application, the utility segment is anticipated to grow with a CAGR of more than 5.2% till 2034 is expected to continue since utilities across various regions are focusing on modernizing their existing electrical infrastructure to enhance grid reliability and reduce transmission losses. Oil-insulated switchgear (OIS) remains a preferred choice due to its durability, high dielectric strength, and ability to handle high voltages efficiently.
   
• Utilities make investments in high voltage systems due to infrastructure upgrades that come from growing consumption and reliable long-distance transmission necessities. Oil switchgear's insulation and creating control features aid in maintaining equilibrium within the grid. By 2024, total US power consumption is expected to reach unprecedented levels (4,086 billion kWh).
   
• Industries including oil & gas, manufacturing, mining, and petrochemicals depend on AC switchgear to handle medium and high-voltage power distribution, ensuring uninterrupted operations and system protection. In 2024, EU olive oil production saw a rebound, reaching 1.5 million tonnes, an 8% increase from the previous year. This growth in end-use industries will create a strong demand for the High Voltage oil insulated switchgear in coming years.
   
• In 2024, the commercial and industrial segment accounted for 31.4% of the market share, which is significant for the high voltage oil insulated switchgear market. The development of large commercial undertakings such as data centers, shopping malls, hospitals, and office towers has necessitated sophisticated high-voltage equipment for their efficient power distribution capabilities. For commercial applications, oil-insulated switchgear provides superior protection to networks and services that enhances power delivery and service reliability.
   
• Furthermore, the residential segment is also especially important in this market as the growing use of DERs (solar PV systems and other forms of distributed energy) at the household level has created a demand for reliable high voltage equipment to control power injection into the grid. In applications where voltage regulation and protection are required, oil-insulated switchgear is appropriate to use due to its safety.
   

• In 2022, 2023, and 2024 the value of the U.S. high voltage oil insulated switchgear market was worth USD 79 million, USD 85.8 million, and USD 92.7 million, respectively. The U.S. has been trying to modernize the power grids to enhance their functionality and efficiency as well as encourage the use of renewable energy sources. The perpetual increase in the market value of the U.S. high voltage oil insulated switchgear has been caused by the replacement of old switchgear with high voltage oil insulated ones.
   
• The expansion of new wind and solar farms across Europe has created an ever-increasing requirement for high-voltage infrastructure capable of efficient power management. In 2024, Norway’s cumulative installed PV capacity crossed the 750 MW mark after the installation of 148.68 MW new solar capacity. Furthermore, the country has the achievable potential to deploy more than 31 GW of solar on its rooftops. To ensure grid stability during the transmission of renewable energy and protect against high-voltage applications, oil-insulated switchgear is being deployed on high-voltage substations.
   
• In Asia Pacific, the growing number of projects in the end use industries are also creating a massive necessity for high voltage oil insulated with switchgear. The end use industries are significantly growing due to rising urbanization and industrialization, along with emerging economies. In 2024, China's GDP was USD 18.42 trillion, which was a 5% increase from the previous year. This made China the world's second-largest economy, after the United States.
   
• Many countries in the MEA region, particularly Saudi Arabia, UAE, Qatar, Nigeria, and South Africa, are heavily investing in expanding and modernizing their power infrastructure. Oil-insulated switchgear plays a key role in supporting high-voltage applications for these grid expansion projects. Rapid industrialization, increasing mining activities, and the growth of oil and gas industries in the region are driving the demand for high-voltage switchgear to ensure uninterrupted power supply.
   
• Government-backed initiatives such as Saudi Arabia’s Vision 2030, UAE’s Energy Strategy 2050, and Egypt’s Integrated Sustainable Energy Strategy are promoting energy infrastructure development and boosting the demand for high-voltage switchgear. African nations, particularly Nigeria, Kenya, and Ethiopia, are focusing on increasing electrification rates and deploying smart grid technologies to enhance power distribution efficiency. Oil-insulated switchgear is being used to ensure reliable power delivery to remote and underserved areas.
   

High Voltage Oil Insulated Switchgear Market Share

Top 4 companies including General Electric, Siemens, ABB, Schneider Electric hold more than 40% market around the world. The major companies consistently work on new products and solutions which makes them a crucial part of the industry globally. These companies place a low focus on investment, especially on research and development. Besides, these companies apply different methods of market development in order to obtain considerable shares in the industry.
 

High Voltage Oil Insulated Switchgear Market Companies

• In December 2024, Hitachi Energy invested approximately USD 47 million to expand its global strategy to support the clean energy transition. Set to be completed by the end of 2025, the expansion will increase the factory’s production capacity by over 40% and create up to 200 new jobs.
   
• In July 2024, Toshiba Group has announced an investment of USD 6 million to enhance the production capacity of power transmission and distribution equipment in India. According to the company, Toshiba Transmission & Distribution Systems (India) Pvt Ltd (TTDI) will boost its manufacturing capacity for power transformers and distribution transformers by approximately 1.5 times compared to FY 2023, over a period from FY 2024 to FY 2026.
   
• In November 2024, Mitsubishi announced plans to construct an advanced switchgear factory in Western Pennsylvania. The company, which specializes in secure and sustainable energy systems and solutions, will invest USD 86 million into the project, generating 200 new jobs in the process.
   

Major players operating in the high voltage oil insulated switchgear market are:

• ABB
• Bharat Heavy Electricals
• CG Power and Industrial Solutions
• CHINT Group
• Eaton
• Fuji Electric
• General Electric
• HD Hyundai Electric
• Hitachi
• Hyosung Heavy Industries
• Lucy Group
• Mitsubishi Electric
• Ormazabal
• Schneider Electric
• Siemens
• Skema
• Toshiba
   

High Voltage Oil Insulated Switchgear Industry News

• In February 2025, Lauritz Knudsen, a leading electrical solutions provider, is set to unveil its comprehensive switchgear portfolio at ELECRAMA 2025, the largest electrical exhibition in India. The new portfolio features advanced, high-performance switchgear solutions designed to enhance safety, reliability, and energy efficiency across residential, commercial, and industrial applications.
   
• In February 2023, the U.S. Department of Energy announced USD 48 million in funding to support a new program focused on developing power grid technologies that improve control and protection of the domestic power grid. This initiative aligns with broader goals to accelerate renewable energy deployment and achieve 100% clean electricity by 2035.
   
• In July 2024, Hitachi Energy announced plans to invest an additional USD 155 million USD to expand its manufacturing capacity in North America. This includes the construction of a new distribution transformer factory in Reynosa, Mexico, and expansions to its transformer factory in South Boston, Virginia, and its low-voltage switchgear and breakers factory in Mount Pleasant, Pennsylvania.
• In June 2024, Siemens announced that it will be investing USD 100 million to expand its switchgear manufacturing plant in Frankfurt, Germany. The company inaugurated a new high-speed warehouse and expanded production area, which is expected to begin operations early in 2025. Approximately 13,000 square meters of the total 15,000 square meter building area will be used for production halls, with the remaining space to be used for offices. The site has both rail and port access.
   
• In April 2024, Digital Realty and Schneider Electric partnered with an organization to launch a circular economy initiative at the Paris 5 data center. The goal of this initiative is to extend the lifespan of critical systems at PAR5, including Schneider Electric's LV and MV electrical equipment, UPS units, and switchgear.
   

This high voltage oil insulated switchgear market research report includes in-depth coverage of the industry with estimates & forecast in terms of “USD Million” and “’000 Units” from 2021 to 2034, for the following segments:

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Market, By Current

• AC
• DC

Market, By Application

• Residential
• Commercial & Industrial
• Utility

The above information has been provided for the following Regions and countries:

• North America
  • U.S.
  • Canada
  • Mexico
• Europe
  • UK
  • Germany
  • France
  • Russia
  • Italy
  • Spain
• Asia Pacific
  • China
  • Australia
  • India
  • Japan
  • South Korea
• Middle East & Africa
  • Saudi Arabia
  • UAE
  • Turkey
  • South Africa
  • Egypt
• Latin America
  • Brazil
  • Argentina