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Higher voltage levels with the lowest carbon footprint

Eco-efficient switchgear technology that fulfils sustainable energy goals

The energy industry is at a crucial juncture, where the adoption of SF6-free technology for high-voltage dead tank breakers (DTB) has become imperative. As the world grapples with the challenges of climate change and the need for sustainable energy solutions, the environmental impact of sulfur hexafluoride (SF6) gas has come under scrutiny.

To mitigate greenhouse gas emissions (GHGs), minimize the industry's carbon footprint, and align with global environmental commitments, transitioning to SF6-free technology in high-voltage dead tank breakers is not just a choice but a responsibility that the energy industry must embrace.

Hitachi Energy offers reliable SF6-free high-voltage circuit-breakers with advanced switchgear technology to improve grid sustainability and increase the efficiency of the transmission system infrastructure.

Today’s challenging energy landscape

Meeting the demands of a dynamic industry

Utilities face several challenges in managing and maintaining today’s complex and interconnected grid. Decentralization of power generation, integration of renewable energy sources into the grid and modernization and optimization plans to meet rising energy demands and climate change concerns are informing the way electricity is generated, transmitted, and distributed today. Utilities need to offer an efficient and balanced approach that is both sustainable and robust to maintain existing systems and deploy innovative solutions.

High performance eco-efficient future-ready switchgear

Best-in-class high-voltage equipment 

Hitachi Energy combines the latest in circuit-breaker technology with economies of scale and a streamlined process at our manufacturing facility in Mount Pleasant, Pennsylvania. The EconiQ 420-kilovolt (kV) DTB will play a critical role in delivering reliable, safe, and high-quality electricity to millions of American homes and businesses. Building on more than a century of expertise and innovation, Hitachi Energy delivers unparalleled high-voltage service across the product lifecycle.

By pioneering eco-efficient solutions such as EconiQ, we are enabling customers and the industry as a whole to reduce carbon footprint and rapidly transition to eco-efficient alternative solutions.


America’s first eco-efficient 420 kV DTB

Collaborating with Eversource to install the first EconiQ 420 kV circuit-breaker in the US. Technology that enables Eversource to reduce their carbon footprint and achieve sustainability goals.

Dead Tank Circuit Breaker at transmission voltage level.
It combines a low carbon footprint, superior reliability and low life cycle costs.

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Hitachi Energy will install the world’s  first eco-efficient EconiQ 420 kV circuit-breaker for Eversource in the US. 

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Hitachi Energy’s Grid Integration business

Pioneering technology: A game-changing Technology that will be the first 420 kV SF₆ -free circuit-breaker  installation  in the country

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Technical reference handbook for
high-voltage equipment
with C4-FN mixtures

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Connect with EconiQ experts in our webinars

For the first time, we’re offering an in-depth look at how Hitachi Energy’s EconiQ HV portfolio is moving the industry forward. We bring you a series of webinars dedicated to our newly-launched EconiQ Dead Tank Breaker and the future of EconiQ technology. Sign up for one of our webinars today and join the conversation.

EconiQ - Roadmap of the technology
EconiQ - Details and comparison to other alternative gas technologies
high voltage post.High-voltage tower sky background.
EconiQ - Gas handling, gas characteristics and general maintenance  

Our Portfolio

Designed for reliable performance, maximized safety and sustainability.


Solutions for tomorrow’s world
Eco-efficient portfolio for reducing environmental impact and increasing energy efficiency, whilst future-proofing technology investments.


years of combined technology leadership

Over two decades of R&D invested in eco-efficient technologies

Pioneered the world’s first high-voltage SF₆-free gas-insulated switchgear and SF₆ replacement in existing high-voltage equipment

Take action today to ensure smooth operation tomorrow

Book your free consultation today