Green Gas to Replace SF6 in Electrical Grids

Environmental considerations are increasingly taking a front seat in all arenas of our daily lives—political, industrial and societal. Not least among the major concerns are global warming and the greenhouse gases that contribute to it, as their concentration in the air reaches new heights. Hence the power industry’s focus on sulfur hexafluoride (SF6) and the need to find a suitable alternative for it in industrial applications. Grid Solutions, a GE and Alstom joint venture, has identified a fluoronitrile based gas mixture dubbed ‘g3–green gas for grid’ that is such a alternative.
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Advancements in Clean Air Insulation Technologies for Switchgear and Circuit Breakers

Our power systems and grids are rapidly transforming to help realize a CO2 -neutral world. Reducing CO2 and equivalent greenhouse gases (GHG) is an important step to address global warming. Power systems must phase out the most potent GHG, sulfur hexafluoride (SF6 ), to achieve this CO2 -neutral society. SF6 has the highest known global warming potential (GWP) of all GHG, estimated to remain in the atmospheric environment for 3,200 years. There is also no SF6 gas waste management system commercially available today. At the same time, utilities must ensure transmission performance and reliability are maintained or increased.
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