Critical gas for sustainable high-voltage grids now made in Germany

Daikin to supply Hitachi Energy with C4-FN, supporting the rapid expansion of Hitachi Energy's EconiQ^® portfolio of SF₆-free grid technologies

• Hitachi Energy and Daikin Industries, Ltd. sign MoU for the supply of C4-FN, a specialty gas component in Hitachi Energy's SF₆-free switchgear, from its Frankfurt facility starting in 2027 
• Partnership strengthens a multi-region supply chain and secures long-term availability of a critical technology
• New production capacity supports the manufacturing of clean energy technologies in Europe

ZURICH, Sept. 3, 2026 /PRNewswire/ -- Hitachi Energy and Daikin Industries, Ltd. today announced an agreement to establish a long-term strategic supply relationship for Hitachi Energy's EconiQ^® portfolio of sulfur hexafluoride (SF₆)-free high-voltage technologies. As part of the agreement, Daikin Chemical Europe GmbH, a subsidiary of Daikin Industries, Ltd., will supply C4-FN, a specialty gas component used in insulating gas mixtures. The C4-FN will be produced by Daikin Refrigerants Frankfurt GmbH at its facility in Frankfurt, Germany, leveraging advanced manufacturing capabilities, high quality, and environmental standards. The new production capacity will become available in 2027 and is part of a RESILIENT global supply strategy for critical materials used in Hitachi Energy's SF₆-free EconiQ technology.

SF₆, a strong greenhouse gas with a global warming potential 24,300 times greater than CO₂, en-us Copyright 2026 EQS Group