SF6-free Gas-insulated Metal Enclosed Switchgear (GIS) Market Research: Reach USD 1186 Million by 2031 at 14% CAGR

According to the recent report from QYResearch, the market for SF6-free Gas-Insulated Metal Enclosed Switchgear (GIS) is moving rapidly into large-scale deployment. Following the 2024 entry into force of the European F-gas regulation and a string of product launches in 2024-2025, utilities and industrial customers are adopting these technologies at transmission and distribution scale.

According to the Global SF6-free Gas-insulated Metal Enclosed Switchgear (GIS) - Global Market Share and Ranking, Overall Sales and Demand Forecast 2025-2031, the global market reached US$ 474 million in 2024 and is projected to grow to US$ 1,186 million by 2031, with a 14.0% CAGR during 2025-2031. Approximately 3,859 units were produced worldwide in 2024, with an average market price of US$ 122,900 per unit.

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2025 Headlines and Industry Developments

· GE Vernova supplied two 420 kV SF6-free substations for Statnett and Equinor in Norway, proving that SF6-free is feasible at transmission voltages.

· Hitachi Energy announced the world's first 550 kV SF6-free GIS in 2025, extending eco-designs to ultra-high-voltage levels.

· Siemens Energy and Elia advanced their Blue GIS 420 kV project in Belgium under the EU LIFE program, showcasing Clean Air technology at high voltage.

· National Grid UK began installing the first 400 kV SF6-free GIS on the British transmission system, signaling broad adoption.

· Schneider Electric and E.ON signed a framework agreement in 2025 to deploy SF6-free medium-voltage switchgear across E.ON's networks in Europe.

Latest Market Data

· Market size 2024: US$ 474 million

· Forecast 2031: US$ 1,186 million

· CAGR 2025-2031: 14.0%

· Output 2024: ~3,859 units

· Average unit price 2024: ~US$ 122,900

· Applications: Urban substations, renewable integration, industrial facilities, compact indoor settings

· Macro factor: 2025 U.S. tariff changes adding supply chain uncertainty and driving regional diversification

Leading Companies

Siemens
Hitachi Energy
Sieyuan Electric
Shandong Taikai
Henan Pinggao Electric
China XD
GE
Hyosung Heavy Industries
TBEA
HD Hyundai Electric
Baiyun Electric
TGOOD
Chint Group
Schneider Electric

Applications

Urban Power Grid
New Energy Power Generation
Industrial
Other

Classification

≤ 550 kV
Over 550 kV

Representative SF6-Free Products

Siemens Energy - 8VN1 Blue GIS (145 kV)

· Clean Air insulation (N2/O2, GWP = 0) with vacuum interrupters

· Rated up to 145 kV, 3,150 A

· Short-circuit breaking capacity up to 40 kA

GE Vernova - B105g (245 kV) GIS with g3 gas

· Fluoronitrile-based g3 mixture, ~99% lower CO2-equivalent vs. SF6

· Voltage class 245 kV

· Developed with EU LIFE support

Hitachi Energy - EconiQ 420 kV Dead-Tank Breaker

· Rated up to 420 kV, 5,000 A

· Short-circuit withstand up to 63 kA

· First 420 kV SF6-free breaker in China, and 550 kV GIS announced in 2025

Schneider Electric - SM AirSeT (24 kV)

· Pure air and vacuum design

· Rated current up to 630 A

· Withstand capability up to 25 kA

HD Hyundai Electric - 170 kV Eco-GIS

· Uses Novec gas mixture

· Rated current 4,000 A

· Short-circuit capability 50 kA

Verified Downstream Customers

National Grid
RTE
Statnett
Elia
Fingrid
SSEN Transmission
E.ON
TenneT
Netze BW
Equinor
TransnetBW
Energinet

Market Trends

Regulation Drives Demand

The EU's 2024 regulation bans SF6 in new medium-voltage switchgear up to 24 kV starting in 2026, followed by bans at higher voltages through 2030 and 2032. This forces DSOs, industrial users, and data centers to commit to SF6-free designs.

Expansion to Higher Voltage Classes

Until recently, SF6-free GIS was limited to 145 kV. The market now has references at 245 kV, 400 kV, 420 kV, and even 550 kV, unlocking adoption in bulk power transmission projects.

Competing Gas Technologies

Natural-origin Clean Air and engineered gas blends like g3 and Novec are advancing in parallel. Clean Air delivers zero GWP, while g3 reduces CO2-equivalent emissions by ~99%. Both are gaining acceptance across Europe and Asia.

From Pilots to Rollouts

Framework agreements and multi-site contracts mark the shift from pilot projects to systematic programs. E.ON's deal with Schneider Electric and Statnett's multiple 420 kV projects are leading examples.

New Buyers Beyond Utilities

Data centers, industrial electrification projects, and LNG facilities are emerging buyers, particularly in Europe and Asia, where decarbonization targets are strongest.

Digital Integration

Next-generation SF6-free GIS integrates digital sensors, asset health monitoring, and process-bus technology. Utilities see cost savings not only from environmental compliance but also from improved reliability and reduced operational costs.

Supply Chain Localization

Tariff uncertainty in 2025 is pushing manufacturers to localize production, qualify regional suppliers, and lock in long-term framework agreements to secure availability and hedge against policy volatility.

Bankability and Standards

Independent testing and EU LIFE-backed projects give utilities confidence in SF6-free performance. More transmission operators are now publishing technical specifications with GWP ≤ 1 requirements, accelerating mainstream adoption.

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