Taipower, TMA sign green cooperation deal

EPA Minister Stephen Shen said that sulfur hexafluoride (SF6) has a global warming potential 22,800 times that of carbon dioxide (CO2) and that the joint efforts by Taipower and TMA in lowering SF6 emissions is estimated to reduce greenhouse gas emissions equivalent to 45,000 tons of CO2 emissions.

“That would be the equivalent of building 123 Da-an Forest Parks,” Shen said at a ceremony in which Taipower and TMA signed a memorandum of cooperation with the aim of jointly cutting emissions of SF6 -- a colorless, odorless, non-toxic, non-flammable gas used as an electrical insulator.

Taipower President Lee Han-shen said the company has collected about 5,000 kg of used SF6.

TMA Director-General Hung Shui-shu said recycled SF6, after proper purification, can be used by the local magnesium industry to protect molten magnesium from oxidation.

The agreement “will help lower magnesium producers' purchase costs, as well as reduce the country's SF6 emissions,” Hung said.

The global warming potential of SF6 is 23,900, making it the most potent greenhouse gas yet to be evaluated, according to the Intergovernmental Panel on Climate Change.

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