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This article provides a structured overview of what utilities should consider when specifying SF₆-free GIS, helping buyers avoid ambiguity, minimize risk, and ensure long-term grid compatibility.

Understanding how MV switchgear proves safety, reliability, and performance — and why type-testing matters more than ever in the transition to SF₆-free technology.

Understanding PD is key to preventing failures, extending asset life, and ensuring safe, reliable MV grid operation.

How Requirements, Architecture, and Performance Differ — And What This Means for SF₆-Free Switchgear

Why Internal Arc Safety Is Essential in Modern Medium-Voltage Switchgear – and How SF₆-Free GIS Meets These Requirements

SF₆ remains widely used in MV switchgear — but with a global warming potential ~24,300× higher than CO₂ and a 3,000-year lifetime, even small leaks create major long-term emissions. In this paper, Amol Patharkar, Cassidy Kuiper, Probal Sarkar, and Lucas Zaehringer highlight the case for SF₆-free (dry-air) switchgear. Using India as an example, they estimate ~160 t of SF₆ already installed in MV networks, equal to ~3.9 million tCO₂e — with emissions set to rise alongside grid expansion if conventional GIS persists. SF₆-free alternatives can eliminate these direct emissions while offering comparable performance — and may even unlock carbon-credit and ESG value as carbon markets evolve.