Authors:
Ankit Gupta, Vishal Saini
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Gas Insulated Switchgear Market Size & Share 2026-2035
Report ID: GMI1929
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Published Date: August 2026
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Gas Insulated Switchgear Market
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Gas Insulated Switchgear Market Size
The global gas insulated switchgear market was valued at USD 26.1 billion in 2025 and is projected to reach USD 55.8 billion by 2035, expanding at a 6.9% CAGR during 2026–2035, according to the latest report published by Global Market Insights Inc.
Gas Insulated Switchgear Market Key Takeaways
Market Leader: Siemens Energy led with over 14% market share in 2025.
Leading Players: Top 5 players in this market include Hitachi Energy, Siemens Energy, ABB, Schneider Electric, GE Vernova, which collectively held a market share of 40% in 2025.
The study covers sealed switchgear systems used across medium- and high-voltage electricity networks, including new installations, replacement programs, and modernization projects. Its market boundary includes GIS deployed in utility, industrial, infrastructure, transportation, and generation settings; it excludes air-insulated switchgear except where AIS provides a cost, pricing, or substitution comparison. The market reaches USD 30.7 billion in 2026 before the forecast growth period extends through 2035.
The estimate uses a structured triangulation approach. Revenue and unit-demand assessment are reconciled across capacity, voltage level, application, and geographic demand pools, then checked against utility grid investment, renewable-transmission requirements, urban-substation constraints, regulatory developments, and OEM activity. The forecast reflects the combination of replacement demand, new grid connections, eco-efficient product transitions, and digital monitoring adoption. It does not assume that all legacy GIS will be replaced on a uniform timetable.
The central commercial change is the interaction between compact-grid requirements and the move away from SF₆. Urban transmission projects, data-center connections, renewable collector systems, and space-constrained industrial sites favor sealed equipment, while Regulation (EU) 2024/573 changes the product-development and compliance timetable for European suppliers and utilities.[1]European Commission Climate Action Staff, climate.ec.europa.eu
GMI Analyst View
GIS demand will remain tied to infrastructure programs rather than short-cycle equipment purchasing through 2035. Replacement activity provides the installed-base foundation, but large connection projects increasingly determine high-value order intake. The SF₆-free transition will change product mix before it changes total installed volume because utilities must balance regulation, installed-base compatibility, and certification requirements. By 2028, manufacturers with both eco-efficient portfolios and established service coverage will have a stronger position in regulated and space-constrained projects.
The research evaluates industry performance from 2022 through 2035 and provides annual market sizing and forecast analysis in USD million and ’000 units. It examines capacity, voltage level, application, and region; identifies the commercial impact of regulation, digitalization, grid investment, and procurement economics; and assesses supplier positioning across global and regional markets.
Forecast impacts are directional rather than strictly additive. They reflect baseline growth, mix effects, project timing, and the interaction of utility capital programs with supplier capacity.
Key Drivers
Grid modernization is the market’s largest demand base. Many North American and European T&D assets approach or exceed their original design life, while utilities must maintain reliability during replacement. GIS is favored where outages must be minimized and existing substation sites cannot be expanded. The equipment’s sealed architecture and compact configuration matter most in dense service territories, where land acquisition and extended outage windows can materially raise project cost.
Renewable generation changes the geography and voltage profile of equipment demand. Offshore wind, utility-scale solar, and large renewable collection systems require new transmission interfaces and converter-station infrastructure. The International Energy Agency identifies the need for faster electricity-network investment to integrate variable generation at scale.[2]International Energy Agency Staff, iea.org GIS supports these applications because environmental sealing, operating reliability, and limited footprint are commercially useful in demanding locations.
Electricity demand from data centers and industrial electrification adds a nearer-term procurement signal. U.S. data-center grid power demand is projected to rise to 61.8 GW in 2025 and 134.4 GW by 2030.[3]S&P Global Energy Staff, spglobal.com European data-center electricity consumption is expected to increase by more than 50% between 2025 and 2030.[4]ENTSO-E Research Team, entsoe.eu High-capacity campuses require equipment at grid connection points, increasing the relevance of medium- and high-voltage GIS.
Key Restraints
GIS maintains a 50–80% capital-cost premium over comparable AIS configurations. Precision manufacturing, gas-handling requirements, installation expertise, and project-specific engineering support the difference. Lifecycle economics can favor GIS where space, reliability, and access limitations are material, but those benefits are less persuasive for smaller utilities and distribution projects with abundant land. This preserves AIS as a substitute in price-sensitive regions.
SF₆ creates a second restraint even as it accelerates product replacement. The gas has a global warming potential of approximately 24,300 times that of CO₂ and remains in the atmosphere for more than 3,000 years. Regulation (EU) 2024/573 requires SF₆-free medium-voltage switchgear up to 24 kV from January 1, 2026, while other voltage categories follow later phase-out dates. Manufacturers face retooling and qualification costs, while utilities must manage long-lived installed fleets during the transition.
GMI Analyst View
Demand drivers outweigh procurement restraints, but the effects differ by project type. New high-load connections and constrained urban replacements can justify GIS economics, whereas lower-density distribution projects retain more AIS exposure. Regulation will raise the strategic importance of eco-efficient designs through 2030, but it will not remove the importance of capital discipline. The second-order effect is a wider separation between vendors able to supply certified alternatives and those competing chiefly on conventional equipment price.
Gas Insulated Switchgear Market Segment Analysis
By Capacity
The ≤38 kV category is the largest capacity tier, representing 33.28% of 2025 revenue, or approximately USD 9.4 billion, and is projected to grow at an 8.2% CAGR through 2035. The segment is exposed most directly to the January 2026 European SF₆ restriction for medium-voltage equipment up to 24 kV. Demand is strongest where compact equipment replaces aging urban and commercial distribution assets. Eco-efficient medium-voltage GIS therefore combines a compliance trigger with normal replacement demand.
The >38 kV to ≤72 kV tier held 20.48% share, or approximately USD 5.8 billion, in 2025 and is projected to grow at 7.7% CAGR. It serves sub-transmission boundaries, industrial park feeders, railway traction, and renewable collector stations. The >72 kV to ≤150 kV tier held 20.53%, also approximately USD 5.8 billion, and is projected to grow at 7.3% CAGR. GE Vernova’s July 2025 contract for 15 bays of compact 380 kV GIS at the Kühmoos project for TransnetBW demonstrates the role of compact designs in high-voltage transmission work.
The >150 kV category accounted for 25.71% of 2025 revenue, or approximately USD 7.3 billion, and is projected to grow at 7.1% CAGR. This tier includes the highest-value transmission connections and converter-related projects. Hitachi Energy delivered an SF₆-free 550 kV GIS to State Grid Corporation of China in May 2025, while GE Vernova agreed in January 2026 to supply 420 kV SF₆-free g³ GIS for a 1.4 GW data-center campus in France. The segment’s order profile is project-led and sensitive to transmission-build timing.
By Voltage Level
Medium voltage led the market with 54% share in 2025, or approximately USD 15.3 billion. Primary distribution accounts for utility-facing networks and larger customer connections, while secondary distribution serves localized commercial, institutional, and urban loads. The 2026 SF₆ phase-out deadline creates an immediate product-transition requirement in the affected European range. This supports replacement demand but also shifts technical and procurement attention toward certified alternatives.
High voltage represented 46% of revenue, or approximately USD 13 billion, in 2025 and contributes 64.88% of total CAGR expansion through 2035. Its growth reflects renewable transmission, urban-grid reinforcement, and large-load connections. London Power Tunnels 2, incorporating Hitachi Energy EconiQ 132 kV and 400 kV SF₆-free GIS at Bengeworth Road, illustrates the shift toward low-emission urban transmission infrastructure. High-voltage demand will be less unit-intensive than medium voltage, but each project carries greater revenue and technical significance.
By Application
Power generation accounted for 26.85% of 2025 revenue, or approximately USD 7.6 billion, supported by offshore-wind and renewable grid-connection requirements. Transmission and distribution represented 26.63%, or approximately USD 7.5 billion, and is projected to record the highest application CAGR at 8.1%. National Grid’s Didcot upgrade, using Hitachi Energy EconiQ 132 kV indoor GIS, reflects the refurbishment pipeline that supports this application.
Infrastructure and transportation held 22.12% of 2025 revenue, or approximately USD 6.3 billion, and is projected to grow at 7.8% CAGR. Rail electrification is an important demand channel, with the EU TEN-T requirement for full electrification of core rail corridors by 2030 reinforcing project continuity. Manufacturing and processing represented 14.44%, or approximately USD 4.1 billion, with hydrogen facilities and battery gigafactories adding demand. Other applications accounted for 9.95%, or approximately USD 2.8 billion, including commercial campuses, healthcare facilities, and institutional sites.
GMI Analyst View
Medium-voltage replacement and high-voltage connection projects will shape different parts of the market rather than compete for the same demand. The former supplies volume and regulatory urgency; the latter supplies the largest incremental revenue pools. Digital monitoring raises the value proposition in both groups because condition data can extend maintenance intervals and improve outage planning. Through 2030, suppliers that combine eco-efficient insulation with interoperable digital architecture will be better placed to address both procurement patterns.
Gas Insulated Switchgear Market Regional Analysis
North America
North America accounted for 18.45% of global revenue in 2025, or approximately USD 5.2 billion, and is projected to grow at 6.6% CAGR. The United States is supported by grid-modernization funding under the Bipartisan Infrastructure Law and Inflation Reduction Act, which collectively allocated more than USD 65 billion for grid modernization. Data-center connections add demand at high-load grid interfaces. Canada contributes through modernization and resource-linked transmission, while Mexico provides regional industrial and power-network demand. The region’s constraint remains long project-development and interconnection timelines.
Europe held 28.29% of 2025 revenue, or approximately USD 8 billion, and is the fastest-growing regional market at 8.9% CAGR. Regulation (EU) 2024/573 makes the SF₆ transition a direct commercial issue across the region. Germany, the UK, and France account for much of European procurement, supported by renewable transmission, urban renewal, rail electrification, and data-center development. ABB’s USD 200 million European manufacturing commitment spans Italy, Germany, Finland, Norway, Bulgaria, and Poland, with most investment directed to SF₆-free switchgear lines. Europe’s major challenge is coordinating standards, available equipment, and long-lived installed assets during the phase-out.
Asia Pacific
Asia Pacific is the largest market, accounting for 30.02% of global revenue in 2025, or approximately USD 8.5 billion, and is projected to grow at 6.6% CAGR. China’s state-directed grid expansion provides the region’s largest demand base, while India is the fastest-growing national market. Japan’s SF₆-free transmission direction adds a technology-transition component. In March 2026, Chubu Electric Power Grid ordered the first 550 kV GIS with all components SF₆-free. Australia adds high-voltage opportunities, including Hitachi Energy’s March 2026 ElectraNet contract for SF₆-free 145 kV and 72.5 kV equipment. South Korea remains relevant through its domestic producers and export-oriented high-voltage supply base.
Middle East & Africa and Latin America
MEA demand is led by GCC utility investment, with regional growth projected at 8.4% CAGR. Siemens Energy delivered the first SF₆-free GIS in Saudi Arabia in July 2025 with ELSEWEDY Electric PSP for Saudi Electricity Company. Saudi Arabia and the UAE anchor utility-scale demand, while Turkey, South Africa, and Egypt extend the addressable base through grid and infrastructure programs. GIS cost premiums constrain wider adoption where budget pressure outweighs space and lifecycle benefits.
Latin America remains a cost-sensitive market in which AIS competition limits GIS penetration. Brazil and Argentina are the principal country markets identified in the study. Demand is most likely where compact design, reliability, or difficult site access produces a clear lifecycle advantage. The region’s commercial outlook depends less on product availability than on project financing and the ability to justify GIS’s upfront premium.
GMI Analyst View
Regional growth will diverge according to regulation, available land, and grid-connection needs. Europe leads in growth because the SF₆ transition coincides with transmission and renewable investment, while Asia Pacific leads in scale through China and India. North American opportunity is increasingly tied to grid reliability and data-center demand. Through 2030, suppliers will need regional product and service strategies rather than a single global specification approach.
Gas Insulated Switchgear Market Share & Competitive Landscape
The market has a moderately concentrated structure. Siemens Energy led with an estimated 14% share in 2025, while Hitachi Energy, Siemens Energy, ABB, Schneider Electric, and GE Vernova collectively held approximately 40%. The remaining 60% is distributed among regional specialists, state-owned producers, and mid-tier OEMs. Market share reflects revenues rather than a uniform count of installed units, because high-voltage projects carry disproportionate value.
Hitachi Energy differentiates through its EconiQ portfolio, covering 72.5 kV through 550 kV, and through early commercial SF₆-free installations. ABB has a broad medium-voltage GIS position and is expanding European SF₆-free production. GE Vernova competes with its 245–420 kV g³ T155g platform and its France data-center agreement. Schneider Electric focuses on digital integration in medium-voltage secondary GIS through EcoStruxure. Siemens Energy combines global service reach with eco-efficient project delivery, including the Saudi Arabian installation.
The company profile chapter covers ABB, CHINT Group, Bharat Heavy Electricals, CG Power and Industrial Solutions, Eaton, Fuji Electric, GE Vernova, G&W Electric, HD Hyundai Electric, HICO America, Hitachi, Hyosung Heavy Industries, LS Electric, Lucy Group, Mitsubishi Electric, Ormazabal, Schneider Electric, Siemens Energy, Skema, and Toshiba. The study evaluates each company’s operating focus, GIS-related offering, geographic relevance, strategic activity, and competitive differentiation. CHINT Group and CG Power are particularly relevant in cost-sensitive Asian and Middle Eastern markets. HD Hyundai Electric and Hyosung Heavy Industries participate in large high-voltage projects across South Korea, North America, and emerging markets. Ormazabal is relevant in European medium-voltage applications and SF₆-free ring-main-unit development.
GMI Analyst View
Competitive advantage is moving from conventional voltage coverage toward certified eco-efficient designs, installed-base service capability, and digital integration. High-voltage technology leadership remains important, but medium-voltage replacement volume creates a separate route to scale. The market will remain moderately concentrated through 2030 because qualification cycles and service requirements protect established suppliers, while regional manufacturers retain positions where cost and local procurement requirements are decisive.
Recent Industry Developments
Mar 2026: Hitachi Energy received an order from Chubu Electric Power Grid for EconiQ 550 kV SF₆-free GIS, described as the first 550 kV GIS with all components SF₆-free. The order extends eco-efficient GIS commercialization into the highest transmission range.
Mar 2026: Hitachi Energy received an ElectraNet contract for SF₆-free EconiQ 145 kV and 72.5 kV live-tank circuit breakers. The project marks the technology’s first use by a major Australian transmission utility.
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