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First All‑SF6‑Free 550 kV GIS Advances Decarbonization of Extra‑High‑Voltage Substations

First All‑SF6‑Free 550 kV GIS Advances Decarbonization of Extra‑High‑Voltage Substations

Chubu Electric selects Hitachi Energy’s EconiQ 550 kV SF6‑free GIS, combining compact GIS performance with near‑zero insulating‑gas emissions.

Industry News Jun 09, 2026 by Dan Simms

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