HV GaN HEMTs Market Outlook 2026 across Data Centres, Electric Vehicles and Renewable Energy Systems

High-voltage gallium nitride high-electron-mobility transistors (HV GaN HEMTs) are becoming important in power systems that require fast switching, compact designs and reduced energy losses. These devices are particularly relevant to 400 V and 800 V power architectures, high-density server supplies, electric vehicle charging, industrial motor drives and renewable energy conversion.

The distinction between RF GaN and power GaN is important. HV GaN HEMTs are designed primarily for power switching rather than signal amplification. Their ability to operate at high switching frequencies can reduce the size of magnetic components and support more compact power conversion systems. The 650 V class is especially relevant to applications connected to conventional high-voltage power supplies.

The Megawatt Data Centre Is Creating a New Device Opportunity

• AI infrastructure is changing the requirements for power semiconductor components. Higher rack power consumption requires efficient conversion between grid-level electricity, intermediate DC buses and lower-voltage server systems. GaN devices are attracting attention because they can support high-frequency switching and improve power density.
• The International Energy Agency estimates that global data centre electricity consumption increased to approximately 485 TWh in 2025 and could reach 950 TWh by 2030. This growing requirement is encouraging semiconductor suppliers to develop devices for high-density power supplies and emerging 800 V DC architectures.
• A notable example arrived in September 2026, when Renesas introduced a 650 V GaN device in an 8 × 8 mm dual-side-cooled package for megawatt-scale AI data centres. The device offers 20 milliohms on-resistance, while its package reduces footprint by 57% compared with the company’s TOLT package. This development highlights how thermal management and packaging are becoming as important as electrical performance.

Beyond Chargers and Adapters into Industrial Power Systems

HV GaN HEMTs are moving into applications where power efficiency directly affects equipment size, operating costs and thermal requirements. Their potential applications include server power supplies, uninterruptible power supplies, solar inverters, battery energy storage, EV onboard chargers and industrial power conversion.

• In June 2026, onsemi introduced its GaNEXUS portfolio, with devices spanning 40 V to 650 V. The company identified AI data centres, robotics, industrial automation and energy infrastructure as target applications.
• Integrated protection features in selected devices also reflect the industry’s growing emphasis on simplifying power system design and improving reliability.

North America

North America has a strong position through its AI infrastructure investments, power semiconductor suppliers, cloud computing ecosystem and electric vehicle industry. The United States is particularly important because data centre operators and power electronics manufacturers are looking for more efficient ways to manage rapidly increasing electricity requirements.

• The IEA reported that electricity consumption from data centres increased by 17% globally in 2025, while investment by five major technology companies exceeded US$400 billion.
• These figures are not specific to GaN demand, but they demonstrate the scale of infrastructure investment that is creating opportunities for high-voltage power devices.
• US-based onsemi’s 2026 GaNEXUS launch provides a direct example of suppliers targeting this emerging requirement.

Europe

Europe is strengthening its position through power semiconductor research, automotive electrification and large-scale manufacturing investments. Germany, Austria, France and the Netherlands have established semiconductor and industrial electronics ecosystems that support GaN development.

A major milestone came on 27 October 2026, when Infineon announced an investment of approximately €1.1 billion at its Villach, Austria, facility to establish a high-volume manufacturing facility for GaN power semiconductors on 300 mm wafers. The project includes €319 million in European Chips Act funding. Larger wafers can improve manufacturing economics, and Infineon previously reported that 300 mm GaN wafers could produce approximately 2.3 times as many chips as 200 mm wafers.

Please Take a Look at Our Updated Report before Continuing: https://semiconductorinsight.com/report/hv-gan-hemts-market/

Asia Pacific

Asia Pacific remains a major manufacturing centre for GaN power devices, supported by semiconductor fabrication capabilities, electronics production and extensive EV supply chains. China is particularly important, with Japan, South Korea and Taiwan contributing through semiconductor materials, equipment, packaging and power electronics.

China-based Innoscience operates two 8-inch GaN-on-silicon fabrication facilities. Its company information reports current production of approximately 10,000 wafers per month, with capacity expansion planned beyond 70,000 wafers per month. Its product portfolio covers devices from 30 V to 650 V, illustrating the region’s ability to address both low-voltage and high-voltage power applications.

Latin America

Latin America’s opportunities are linked to electric mobility, renewable energy installations, industrial automation and the modernisation of electricity infrastructure. Brazil and Mexico are important markets because of their automotive manufacturing activities and expanding clean-energy industries.

The IEA reported that electric car sales across Latin America increased by 75% in 2025, led by Brazil and Mexico. This expansion can support demand for more efficient onboard chargers, charging stations and power conversion equipment. HV GaN HEMTs could serve selected high-frequency conversion stages, although silicon and silicon carbide remain important alternatives depending on voltage, power and cost requirements.

Middle East & Africa

• The Middle East is creating opportunities through large data centre projects, renewable power installations, EV charging infrastructure and industrial electrification.
• Saudi Arabia and the UAE are particularly relevant as they invest in digital infrastructure and energy diversification. Africa’s opportunities are more closely associated with solar inverters, battery storage, telecom power supplies and distributed electricity systems.
• For these markets, HV GaN HEMTs can support compact and efficient conversion equipment, particularly where thermal management and system size matter.
• However, regional demand will depend on local manufacturing partnerships, equipment procurement and the pace of infrastructure development rather than semiconductor adoption alone.

Manufacturing Scale Will Decide the Next Phase

HV GaN HEMTs market is entering a phase where wafer economics, device reliability, packaging and system-level integration will influence commercial adoption. The transition towards 300 mm manufacturing, 650 V product platforms and higher-density power architectures shows that GaN is progressing beyond specialised applications.

Its longer-term position will depend on delivering reliable performance at competitive costs across data centres, electric mobility, renewable energy and industrial power systems.