The Seattle Times

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Mike Siegel / The Seattle Times
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Wednesday, May 7, 2014

Efficient, agile, smart, Seattle’s steel mill keeps the fires burning

A controlled explosion, of sorts, occurs every time a “charge” of 100,000 pounds of scrap metal is dumped into Nucor Steel’s electric arc furnace, which melts steel at 3,100 degrees. The three massive electrodes firing the furnace make Nucor the largest single electrical customer for Seattle City Light, but the company has remained competitive globally by constantly tuning its operation to make it more efficient.