Asia Pacific Gas Insulated Ring Main Unit Market Report

Asia Pacific Gas Insulated Ring Main Unit Market Size

The asia pacific gas insulated ring main unit market size was valued at USD 902.53 million in 2025 and is anticipated to reach USD 959.57 million in 2026 from USD 1566.73 million by 2034, growing at a CAGR of 6.32% during the forecast period from 2026 to 2034.

The gas-insulated ring main units (GIRUs) are compact, high-voltage switchgear systems designed for secure and efficient power distribution in urban and industrial environments. In the Asia Pacific region, the proliferation of smart cities, coupled with aging electrical infrastructure, has catalyzed the transition toward resilient and compact power distribution solutions. The increasing vulnerability of overhead lines to extreme weather events further amplifies the demand for enclosed, fault-resistant systems.

MARKET DRIVERS

Rapid Urbanization and Infrastructure Modernization

The accelerating pace of urbanization is elevating the growth of the Asia Pacific gas-insulated ring main unit market. GIRUs offer a compact, reliable alternative suitable for underground installations in metro stations, commercial complexes, and high-rise developments. According to the United Nations, Asia’s urban population is expected to reach 3.4 billion by 2050, with India and Indonesia accounting for nearly half of this growth.

Grid Resilience Imperatives Amid Climate Vulnerability

Increasing exposure to extreme weather events is also significantly boosting the growth of the Asia Pacific Gas Insulated Ring Main Unit Market. Coastal cities and island nations face recurring threats from typhoons, flooding, and saltwater corrosion, which severely compromise overhead and conventional switchgear systems. GIRUs, being fully sealed and gas-insulated, offer superior protection against moisture, dust, and corrosive elements, ensuring an uninterrupted power supply in adverse conditions. Australia’s Energy Security Board has similarly emphasized the deployment of sealed switchgear in bushfire-prone regions, where open-air equipment poses fire risks.

MARKET RESTRAINTS

Environmental Concerns Surrounding SF₆ Emissions

The continued reliance on sulfur hexafluoride (SF₆) as an insulating medium, is restricting the growth of the Asia Pacific Gas Insulated Ring Main Unit Market. SF₆ is recognized as the most potent greenhouse gas evaluated by the Intergovernmental Panel on Climate Change, with a global warming potential 23,500 times greater than carbon dioxide over 100 years. According to the United Nations Environment Programme, SF₆ emissions from the electrical industry in Asia have increased by 25% between 2012 and 2022 due to expanding switchgear installations. In China, the world’s largest producer and consumer of SF₆-based equipment, annual emissions from the power sector exceed 8 million metric tons of CO₂ equivalent, as reported by the Chinese Research Academy of Environmental Sciences. Regulatory pressure is mounting across the region, with Japan and South Korea implementing stricter monitoring and reporting requirements for SF₆ usage under their national climate action plans. Additionally, the European Union’s F-Gas Regulation, though not directly binding in Asia, influences multinational utilities and equipment suppliers to phase out SF₆ in new projects. Utilities are increasingly cautious about adopting GIRUs without robust gas handling and recycling protocols, slowing procurement cycles. As per the Global Methane Initiative, less than 30% of SF₆ is recovered during equipment decommissioning in developing Asian economies, exacerbating leakage risks.

High Initial Investment and Lifecycle Cost Sensitivity

The elevated capital expenditure associated with the advanced systems is acting as a barrier for the growth of the Asia Pacific Gas Insulated Ring Main Unit Market especially in undeveloped countries. While GIRUs offer long-term operational benefits such as reduced footprint and lower maintenance, their upfront costs can be two to three times higher than conventional air-insulated switchgear. In countries like Indonesia, the Philippines, and Bangladesh, where utility budgets are constrained and electrification remains a priority, financial feasibility often dictates technology selection. A study by the Electric Power Research Institute found that workforce readiness for handling SF₆ and sealed systems is inadequate in over 60% of utilities across Southeast Asia, leading to increased operational risks and indirect expenses.

MARKET OPPORTUNITIES

Expansion of Renewable Energy Integration Infrastructure

The aggressive deployment of renewable energy projects across the Asia Pacific region is creating substantial opportunities for the growth of the Asia Pacific Gas Insulated Ring Main Unit Market. As solar and wind farms proliferate in remote and coastal areas, the need for compact, reliable switchgear to interconnect decentralized generation with the main grid has intensified. GIRUs are increasingly deployed in renewable substations due to their resilience, compactness, and ability to operate in harsh environments. Offshore wind developments in Taiwan and Japan further amplify demand, as GIRUs are ideal for platform-based substations exposed to salt-laden air. Additionally, microgrid projects in island nations like the Philippines and Indonesia rely on GIRUs to ensure stable power routing between solar, battery storage, and diesel generators. As per the International Renewable Energy Agency, Asia accounted for 60% of global renewable capacity additions in 2023, signaling sustained demand for advanced distribution components.

Government-Led Smart Grid and Underground Cabling Initiatives

A wave of government-backed smart grid and underground cabling programs is also expected to enhance the growth of the Asia Pacific Gas Insulated Ring Main Unit Market. National policies aimed at modernizing aging infrastructure and improving urban aesthetics are driving the replacement of overhead lines with underground distribution networks, where GIRUs are the preferred switchgear solution. Similarly, China’s State Grid Corporation has committed to investing over CNY 2 trillion in grid modernization by 2025, with a focus on compact switchgear for city centers. According to the Japan Smart Grid Federation, over 75% of new distribution projects in Tokyo and Osaka now include gas-insulated systems to support digital monitoring and automation. As per the Asia Pacific Economic Cooperation, over 300 smart grid pilot projects are currently underway across the region, many involving insulated switchgear as core components.

MARKET CHALLENGES

Technological Fragmentation and Standardization Gaps

The lack of harmonized technical standards and interoperability across countries, complicating procurement, maintenance, and system integration is hindering the growth of the Asia Pacific gas-insulated ring main unit market. While developed markets like Japan, Australia, and South Korea adhere to IEC 62271 and IEEE standards, many Southeast Asian and South Asian nations follow hybrid or localized specifications, leading to equipment incompatibility. In Indonesia, for example, regional utilities apply divergent insulation coordination and fault-level requirements, forcing manufacturers to customize GIRU designs for each tender. According to the ASEAN Power Grid Secretariat, only 40% of cross-border substation projects between ASEAN members use fully standardized switchgear, resulting in delays and cost overruns. Additionally, the absence of uniform cybersecurity and IoT integration standards for smart GIRUs hampers digital grid development. As per the Asia-Pacific Telecommunity, fewer than 30% of utilities in the region have adopted common communication protocols for intelligent switchgear. The situation is exacerbated by the coexistence of SF₆, dry air, and vacuum-insulated technologies, each with different operational parameters. Without regional alignment, utilities face higher training, inventory, and lifecycle management costs.

Skilled Workforce Shortage in Advanced Switchgear Maintenance

The deployment of the advanced techniques due to a shortage of technically skilled personnel capable of installing, monitoring, and servicing these advanced systems will additionally degrade the growth of the Asia Pacific gas-insulated ring main unit market. GIRUs require specialized knowledge in gas handling, partial discharge testing, and digital protection relays skills that are in short supply, particularly in emerging markets. The complexity of modern GIRUs, which often integrate IoT sensors and predictive analytics, further widens the skills gap. A study by the World Bank found that less than 20% of technical training programs in South Asia include modules on gas-insulated switchgear. This deficiency delays project commissioning, increases operational risks, and discourages utilities from adopting advanced technologies. Manufacturers are increasingly required to provide on-site support, inflating service costs.

REPORT COVERAGE

SEGMENTAL ANALYSIS

By Installation Insights

The Indoor installation segment was the largest and held a prominent share of the Asia Pacific gas-insulated ring main unit (GIRU) market in 2025 with the widespread deployment of GIRUs in urban substations, commercial complexes, and industrial facilities where space efficiency and environmental protection are paramount. The surge in high-rise construction and underground metro systems has intensified the need for compact, which enclosed switchgear that can operate safely within confined indoor environments. Additionally, indoor GIRUs are less susceptible to external contaminants such as dust, moisture, and salt-laden air are advantages in densely populated and coastal urban centers. The growing adoption of prefabricated and modular substations, particularly in data centers and healthcare facilities, further reinforces the preference for indoor installations.

The outdoor installation segment is swiftly emerging with a CAGR of 9.4% during the forecast period with the rapid expansion of renewable energy infrastructure and rural electrification projects, where GIRUs are increasingly deployed in exposed environments due to their resilience and minimal footprint. Similarly, in the Philippines, the National Grid Corporation has installed over 1,200 outdoor GIRU units in typhoon-prone regions to enhance grid reliability.

By Component Insights

The switch and fuses component segment was the largest and held a significant share of the Asia Pacific gas insulated ring main unit market in 2025 with the fundamental role of switching and overcurrent protection in medium-voltage distribution systems, where reliability and fault isolation are non-negotiable. Switch and fuse combinations are integral to load break switches and ring main units, providing cost-effective, fail-safe protection against short circuits and equipment overload. In India, the Central Electricity Authority mandates the use of fuse-based protection in all distribution-level ring main units, a regulation that has standardized their inclusion across utilities and private developers. According to the India Smart Grid Forum, over 80% of distribution substations in urban India utilize switch-fuse combinations in GIRUs, driven by their simplicity, durability, and compatibility with legacy systems. Additionally, the integration of high-breaking-capacity fuses with modern load break switches has enhanced their ability to handle inrush currents and transient faults, making them indispensable in industrial and infrastructure applications.

The self-powered electronic relay segment is rapidly growing at an anticipated CAGR of 11.2% in the next coming years with the digital transformation of power distribution networks and the rising demand for intelligent, autonomous protection systems that do not rely on external power sources. Self-powered relays harvest energy from the current flowing through the circuit by enabling continuous monitoring and fault detection even during blackouts with the advantage in unstable grids. In South Korea, KEPCO has mandated self-powered relays in all new smart substations as part of its Grid 3.0 initiative, which is aiming to achieve 99.999% reliability by 2030. According to the Korea Electrotechnology Research Institute, these relays reduce fault detection time by up to 60% compared to conventional systems. Furthermore, advancements in micro-energy harvesting technology have improved the sensitivity and accuracy of these relays, allowing them to operate effectively at low load currents.

By Application Insights

The Distribution utilities segment was accounted in holding 52.3% of the Asia Pacific gas insulated ring main unit market share in 2025 with the massive scale of grid modernization and urban electrification programs underway across the region, where utilities are replacing aging infrastructure with compact, reliable switchgear. As per the Central Electricity Authority, technical losses in Indian distribution networks averaged 16.8% in 2023, which is prompting utilities to adopt GIRUs for their superior insulation and lower fault rates. The preference for GIRUs in utility networks is further reinforced by their compatibility with automation and remote monitoring systems, enabling faster fault isolation and service restoration. Tokyo Electric Power Company reports that GIRU-equipped feeders in Tokyo have reduced outage durations by 40% compared to conventional switchgear. Additionally, the increasing frequency of extreme weather events has pushed utilities to prioritize resilient infrastructure, with Australia’s Energy Security Board recommending GIRUs for all new urban distribution projects.

The transportation sector is swiftly emerging at a CAGR of 10.8% from 2025 to 2033 with the rapid expansion of mass transit systems, including metro rail, high-speed rail, and electric vehicle charging infrastructure, all of which require compact, high-reliability power distribution solutions. In India, the Ministry of Housing and Urban Affairs reports that 72 cities now have operational or under-construction metro systems, with over 1,200 kilometers of new lines commissioned since 2020—each relying on GIRUs for underground traction substations.

REGIONAL ANALYSIS

China Gas Insulated Ring Main Unit Market Insights

China was the top performer of the Asia Pacific gas insulated ring main unit market by capturing 34.2% of the share in 2024 with its aggressive urbanization and state-led grid modernization programs. State Grid Corporation and China Southern Grid are spearheading the deployment of smart, compact substations in cities like Shanghai, Shenzhen, and Beijing, where GIRUs are standard in new developments. The 14th Five-Year Plan allocates CNY 1.8 trillion for grid upgrades, with a focus on reducing technical losses and enhancing reliability. The country is also a major manufacturing hub, with companies like Xiamen Huadian and NARI Group producing cost-competitive GIRUs for domestic and export markets.

India Gas Insulated Ring Main Unit Market Insights

India was ranked second in the Asia Pacific GIRU market with 22.3% of the share in 2025 with large-scale urban development and the urgent need to modernize its aging distribution infrastructure. As per the Ministry of Power, over 10,000 smart substations are planned by 2026, many incorporating GIRUs for space-constrained urban areas. Technical losses in distribution networks remain high at 16.8%, as reported by the Central Electricity Authority, prompting utilities to adopt sealed switchgear for improved reliability.

Japan Gas Insulated Ring Main Unit Market Insights

Japan gas insulated ring main unit market growth is anticipated to grow eventually with the stringent safety standards, aging infrastructure replacement, and the need for disaster-resilient power systems. Japan’s high population density and limited land availability make GIRUs the preferred solution in urban centers like Osaka and Yokohama. According to the Japan Smart Grid Federation, over 75% of new substation projects incorporate digitalized GIRUs with remote monitoring. The country is also a leader in SF₆-free technology, with Hitachi and Mitsubishi Electric commercializing clean-air-insulated units since 2020. As per the Agency for Natural Resources and Energy, Japan aims to reduce SF₆ emissions by 50% by 2030, accelerating the shift toward eco-efficient alternatives.

South Korea Gas Insulated Ring Main Unit Market Insights

South Korea gas-insulated ring main unit market growth is likely to grow with the smart grid technology and urban infrastructure. KEPCO’s Grid 3.0 initiative aims to digitize 100% of distribution networks by 2030, with GIRUs serving as foundational nodes in smart substations. The Ministry of Trade, Industry and Energy reports that over 1,500 EV charging stations were added in 2025, many in enclosed environments.

Australia Gas Insulated Ring Main Unit Market Insights

Australia gas-insulated ring main unit market is likely to have steady opportunities with the grid resilience and renewable integration. The country’s vast geography and exposure to extreme weather bushfires, cyclones, and floods have made sealed, durable switchgear essential. The Energy Security Board mandates hardened infrastructure in high-risk zones, leading to increased adoption of outdoor-rated GIRUs. In Queensland, Energex has installed over 400 GIRUs in cyclone-prone regions to minimize outage durations, as reported by the Australian Energy Market Operator. The Snowy 2.0 hydro project and Sun Cable initiative rely on GIRUs for substation switching. Urban centers like Sydney and Melbourne are also transitioning to underground cabling, with the New South Wales Government investing AUD 1.2 billion in network modernization. Moreover, Australia’s strict environmental regulations are accelerating the shift toward SF₆-free alternatives, with ABB and Siemens deploying g³ technology in new projects.

COMPETITIVE LANDSCAPE

The competitive landscape of the Asia Pacific gas insulated ring main unit market is characterized by a blend of global technology leaders and regionally adapted players vying for dominance through innovation, localization, and strategic alliances. Multinational corporations such as Schneider Electric, ABB, and Siemens Energy leverage their engineering expertise and global R&D networks to introduce advanced, eco-efficient switchgear tailored for urban density and climate resilience. These firms are increasingly focused on digitalization, integrating smart sensors and automation into GIRUs to meet the demands of smart grid initiatives across the region. At the same time, regional manufacturers in China and India are gaining ground by offering cost-competitive solutions with localized support, challenging the dominance of Western vendors. Competition is intensifying as governments prioritize underground cabling, renewable integration, and disaster-resilient infrastructure, creating opportunities for differentiation. The shift toward SF₆-free technologies has become a key battleground, with companies racing to commercialize sustainable alternatives.

KEY MARKET PLAYERS

Some of the companies that are playing a dominating role in the Asia Pacific Gas Insulated Ring Main Unit Market include

• Hitachi Energy
• Siemens
• Schneider Electric
• Eaton
• GE Vernova (Grid Solutions)
• Lucy Electric
• Ormazabal (Velatia)
• Toshiba Energy Systems
• LS Electric
• Hyundai Electric
• Fuji Electric
• CHINT Group
• TBEA
• Nissin Electric
• CG Power & Industrial Solutions

Top Players in the Asia Pacific Gas Insulated Ring Main Unit Market

Schneider Electric

Schneider Electric has established a formidable presence in the Asia Pacific gas insulated ring main unit market through its EcoStruxure-enabled, smart distribution solutions tailored for urban and industrial applications. The company has intensified its regional footprint by launching compact, SF₆-free RMUs in India and Southeast Asia, aligning with sustainability mandates. In 2023, Schneider introduced its SM AirSeT switchgear in Australia and Japan, utilizing pure air insulation to eliminate greenhouse gas emissions. The company collaborates closely with utilities and infrastructure developers, offering integrated digital services such as remote monitoring and predictive maintenance. Its localized manufacturing in China and India ensures cost efficiency and faster deployment. Schneider has also partnered with Singapore’s SP Group to modernize underground networks using intelligent GIRUs.

ABB

ABB remains a pivotal player in the Asia Pacific GIRU market, leveraging its extensive portfolio of AirPlus™ and SafeAir technologies that combine reliability with environmental responsibility. In 2023, ABB launched its next-generation Safe Air RMU with integrated digital sensors in South Korea by enhancing fault detection and grid automation. The company has strengthened its position through strategic collaborations with local utilities, including a pilot project with Tokyo Electric Power Company to test AI-driven diagnostics in GIRUs. ABB also expanded its manufacturing capabilities in Vietnam to serve Southeast Asian markets more efficiently. Its focus on SF₆-free solutions, such as those using AirPlus gas, aligns with regional decarbonization goals. ABB’s deep engineering expertise and commitment to innovation continue to position it as a technology leader in resilient and sustainable power distribution.

Siemens Energy

Siemens Energy has significantly influenced the Asia Pacific GIRU landscape through its advanced, eco-efficient switchgear solutions designed for smart cities and renewable integration. The company’s blue GIS technology, which uses clean air instead of SF₆, has been deployed in urban substations across Australia, Singapore, and Japan, supporting regional environmental regulations. In 2022, Siemens commissioned its first SF₆-free ring main unit at a data center in Sydney, setting a benchmark for sustainable infrastructure. The company has also supplied insulated switchgear for high-speed rail projects in China and metro expansions in Mumbai. Siemens collaborates with research institutions in South Korea to develop digital twin models for predictive maintenance of GIRUs. Its investment in local service centers across Thailand and Malaysia ensures rapid technical support.

Top Strategies Used by the Key Market Participants

Key players in the Asia Pacific gas insulated ring main unit market are prioritizing technological innovation, regional localization, and sustainability-driven product development to strengthen their competitive edge. Companies are investing heavily in SF₆-free solutions using alternative insulating gases like clean air and g³ to comply with tightening environmental regulations. Strategic partnerships with utilities and infrastructure developers enable tailored deployments in smart cities and transportation networks. Firms are expanding manufacturing and service facilities within high-growth markets such as India and Vietnam to reduce lead times and enhance supply chain resilience. Digital integration is another core strategy, with vendors embedding IoT sensors and self-powered relays into GIRUs for real-time monitoring and predictive maintenance. Mergers and acquisitions are being leveraged to acquire specialized software and automation capabilities. Additionally, companies are engaging in pilot projects with government agencies to demonstrate compliance with smart grid standards. Training programs for local technicians ensure long-term serviceability, while participation in regional energy forums helps shape regulatory frameworks.

RECENT MARKET DEVELOPMENTS

• In June 2023, Schneider Electric launched its SF₆-free SM AirSeT ring main unit in Japan and Australia, utilizing pure air insulation to meet stringent environmental regulations and support decarbonization goals in urban power networks.
• In September 2022, ABB commissioned a new manufacturing facility in Hanoi, Vietnam, to produce Safe Air gas-insulated switchgear by enhancing regional supply chain efficiency and serving growing infrastructure demands across Southeast Asia.
• In March 2024, Siemens Energy partnered with Tokyo Electric Power Company to deploy AI-enabled, digital twin-integrated GIRUs in Tokyo’s underground distribution network, which is improving predictive maintenance and grid reliability.
• In November 2023, Hitachi Energy introduced its EcoBlue Air ring main unit in India, featuring clean air insulation and IoT connectivity by targeting smart city and metro rail projects under India’s urban modernization initiatives.
• In January 2023, Mitsubishi Electric expanded its service center network in Indonesia and the Philippines by providing localized technical support and maintenance training for gas-insulated switchgear used in utility and industrial applications.

MARKET SEGMENTATION

This research report on the Asia Pacific Gas Insulated Ring Main Unit Market has been segmented and sub-segmented into the following categories.

By Installation

• Indoor
• Outdoor

By Component

• Switch & Fuses
• Self-Powered Electronic Relay

By Application

• Distribution Utilities
• Industries
• Infrastructure
• Transportation

By Country

• India
• China
• Japan
• South Korea
• Australia
• New Zealand
• Thailand
• Malaysia
• Vietnam
• Philippines
• Indonesia
• Singapore
• Rest of APAC