Gas Insulated Transformer Market Report 2026

The gas insulated transformer market size has grown strongly in recent years. It will grow from $2.8 billion in 2025 to $2.97 billion in 2026 at a compound annual growth rate (CAGR) of 6.3%. The growth in the historic period can be attributed to rise in installation of gas-insulated transformers in underground and urban substations, increase in use of sf6-insulated transformers, expansion in medium and high-voltage applications, adoption in industrial and commercial infrastructure, integration of indoor and outdoor GIS installations.

The gas insulated transformer market size is expected to see strong growth in the next few years. It will grow to $3.8 billion in 2030 at a compound annual growth rate (CAGR) of 6.3%. The growth in the forecast period can be attributed to increase in AI and IoT-enabled monitoring systems, rising adoption of predictive maintenance solutions, growth in environmentally friendly insulation, expansion in digital asset management, increasing deployment of smart GIS technologies. Major trends in the forecast period include integration of smart gis monitoring, deployment of IoT-enabled transformer sensors, implementation of predictive maintenance using ai, adoption of digitalized asset management, expansion of environmentally friendly insulation technologies.

The growing demand for electricity is driving the adoption of gas-insulated transformers, which are particularly suited for industries facing space constraints and low maintenance requirements. This trend is fueled by economic growth, rapidly increasing populations, and rising transportation needs, especially in developing countries such as China, India, Brazil, and several African nations. Global electricity demand is projected to reach 38,700 TWh by 2050, with electric vehicles expected to account for 9% of this consumption, and China and India contributing significantly to this growth. For example, in September 2025, the UK’s Department for Energy Security and Net Zero reported that between 2023 and 2024, final energy consumption in the United Kingdom increased by 2.6%, reaching 128.1 million tonnes of oil equivalent (Mtoe). The domestic sector saw a notable rebound, with consumption rising 3.8% to 34 Mtoe in 2024 after record lows in 2023. Consequently, the rising demand for electricity is driving the growth of the gas-insulated transformer market.

Technological advancements have become a prominent trend in the gas-insulated transformer market. Companies operating in this sector are concentrating on technological innovations to enhance their market position. For example, in August 2024, Hitachi Energy, a technology company based in Switzerland, launched the world's highest-voltage SF₆-free switchgear, specifically a 420 kV gas-insulated switchgear (GIS) technology, as part of its commitment to sustainability and reducing greenhouse gas emissions. This innovative solution aims to replace sulfur hexafluoride (SF₆), a potent greenhouse gas, with a more eco-efficient alternative, significantly reducing the carbon footprint associated with high-voltage electrical systems.

In February 2023, Bruken Kanto Co., Ltd, a Japan-based company primarily engaged in the electrical equipment sector, reached an agreement to acquire the electrical equipment sales business of Nissin Electric Co., Ltd for an undisclosed amount. This acquisition aligns with Bruken Kanto's strategy to expand its market presence and enhance its product offerings in the electrical equipment sector. Nissin Electric Co., Ltd is a Japan-based manufacturer specializing in the development, production, and sales of electrical and electronic equipment.

Major companies operating in the gas insulated transformer market are Takaoka Toko Co. Ltd., Arteche Group, Bharat Heavy Electricals Limited (BHEL), Chint Group Co. Ltd., General Electric Company (GE), Hyosung Corporation, Meidensha Corporation, Mitsubishi Electric Corporation, Nissin Electric Co. Ltd., Shihlin Electric & Engineering Corp., Siemens AG, Tatung Company, Toshiba Corporation, ABB Ltd., Eaton Corporation plc, Elsewedy Electric Co. S.A.E., Fuji Electric Co. Ltd., Hitachi Ltd., HyundAI Heavy Industries Co. Ltd., Hyosung Heavy Industries Corp., Larsen & Toubro Limited, Ormazabal Velatia S.L., Powell Industries Inc., Schneider Electric SE, Trench Group, Alstom SA, CG Power and Industrial Solutions Limited, Efacec Power Solutions, GE Grid Solutions.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report’s Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

Tariffs have created both challenges and opportunities for the gas-insulated transformer market by increasing the cost of imported SF6 gas, transformer components, and monitoring equipment. Industrial, commercial, and other end-user segments in North America, Europe, and Asia-Pacific are most affected due to their dependence on imported technology. While higher costs and supply chain disruptions have posed challenges, positive impacts include an acceleration of local manufacturing initiatives, investment in alternative insulation materials, and increased adoption of AI and IoT-based monitoring solutions to optimize transformer performance and reduce import dependency.

The gas-insulated transformers market research report is one of a series of new reports that provides gas-insulated transformers market statistics, including gas-insulated transformers industry global market size, regional shares, competitors with a gas-insulated transformers market share, detailed gas-insulated transformers market segments, market trends and opportunities, and any further data you may need to thrive in the gas-insulated transformers industry. This gas-insulated transformers market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.

Gas-insulated transformers are electric devices designed for fire safety in critical buildings and underground substations near residential areas, factories, and chemical plants. A gas-insulated substation (GIS) is a high-voltage substation wherein the primary conducting structures are enclosed within a sealed environment, and the insulating medium is sulfur hexafluoride (SF6) or sulfur hexafluoride gas. GIS support frames are either bolted or welded to embedded steel plates or beams, and chemical drill anchors may be utilized to secure the system.

The primary types of gas-insulated transformers include instrument transformers, power transformers, and others. Instrument transformers are employed in AC systems to measure electrical quantities such as voltage, current, power, energy, power factor, and frequency. They are also used with protective relays to safeguard the power system. Gas-insulated transformers operate at various voltage levels, including medium voltage (up to 72.5 kV), high voltage (72.5 kV to 220 kV), and extra-high voltage (above 220 kV), with installation types ranging from indoor to outdoor. These transformers find application across various end-users, including industrial, commercial, and utility sectors.North America was the largest region in the gas-insulated transformer market in 2025. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in the gas insulated transformer market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the gas insulated transformer market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The gas-insulated transformer market consists of sales of isolated-phase GIS, integrated 3-phase GIS, hybrid GIS system, compact GIS and highly integrated system. Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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