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Carbon neutrality

Hitachi Energy is fostering collaboration with customers and partners to find global solutions to solve the global challenge of a reliable and sustainable carbon-neutral energy future.

Hitachi Energy is at the forefront of the energy transition by collaborating with customers and partners to support worldwide efforts to reduce the impact of greenhouse gases  such as sulfur hexafluoride (SF6).

SF6 has been the norm in the industry for decades, but that will soon change. Even though SF6 has excellent insulation capabilities, it has a high Global Warming Potential (GWP), and its life-cycle management requires careful handling. ​

As the first big step forward, we launched our EconiQ™ high-voltage portfolio in 2021 to phase out SF6 and enable the industry to transition to eco-efficient solutions. Since then, EconiQ has achieved multiple world-firsts in SF6-free high-voltage technologies and is becoming widely adopted across continents.

A new era of EconiQ is coming. In CIGRE Session 2024, we have unveiled two truly iconic EconiQ additions that demonstrate how the scalability of our technology plays a fundamental role in the effective elimination of SF6.

Join us on our journey to an SF6-free energy future!

World’s first 550 kV eco-efficient circuit-breaker

Hitachi Energy’s latest sustainable innovation that  scales eco-efficient technology to the highest voltage ratings and marks a significant milestone in the journey to phase out SF6 from the grid.

                        

EconiQ 420 kV circuit-breaker

This breakthrough technology is a significant milestone in the industry  to transmit large amounts of electricity over long distances while eliminating significant volumes of SF6.

                        

EconiQ Live Tank Circuit Breaker 420 kV

The latest addition to Hitachi Energy’s EconiQ high-voltage line that is as reliable ast he conventional solution and operates with an eco-efficient gas mixture that significantly reduces the environmental impact.

                        

Get to know more

Handbook | Technical reference for high-voltage equipment with C4-FN mixtures

White paper | Game-changing EconiQ high-voltage technologies towards a carbon-neutral future

Discover Hitachi Energy’s EconiQ milestones

EconiQ retrofill for ELK-3, 420 kV gas-insulated lines

Replace SF₆ in existing high-voltage equipment with EconiQ retrofill

Replace SF₆ in existing high-voltage equipment with EconiQ retrofill

EconiQ retrofill replaces SF₆ in installed high-voltage gas-insulated lines (GIL) with an eco-efficient gas mixture to improve the equipment’s environmental and life cycle performance. The retrofill solution is part of Hitachi Energy’s EconiQ high-voltage portfolio which eliminates SF₆ with scalable solutions for the lowest carbon footprint.

Watch how EconiQ retrofill works

EconiQ retrofill: the sustainable solution for reducing greenhouse gas SF₆

EconiQ retrofill: the sustainable solution for reducing greenhouse gas SF₆

In partnership with National Grid, Hitachi Energy successfully energized a pilot project that introduced EconiQ retrofill – an eco-efficient solution that replaces SF₆ with a game-changing technology that improves environmental and lifecycle performance.

Discover the story behind this milestone

Achieving world’s first SF₆ replacement with National Grid

Achieving world’s first SF₆ replacement with National Grid

In a pilot project in Richborough, UK, Hitachi Energy and National Grid have successfully replaced SF₆ in installed high-voltage gas-insulated lines (GIL) with an eco-efficient fluoronitrile-based gas mixture.

Read the success story

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