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California utility formulates a plan to eliminate the use of SF6 in all high-voltage gas-insulated equipment
Pacific Gas & Electric Co.'s Sustainability Leadership Council challenged its Substation Asset Strategy department to come up with a plan to phase out the use of sulfur hexaflouride in all high-voltage gas-insulated equipment. Like carbon dioxide, SF6 is a greenhouse gas. While CO2 has a global waming potential (GWP) of one, SF6 has a GWP of 23,500. Althought PG&E reduced its SF6 leak rate to nearly 1%, this came with an extreme operating cost. Read more
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