Table: Saving Energy with Superconductors

Roughly 8% of all electricity in the U.S. goes up in smoke--actually, heat--thanks to the resistivity of copper and aluminum wires. Trimming those losses with superconducting materials could produce huge benefits.

APPLICATION NET SAVINGS* ANNUAL WORTH Urban power cables and transformers 0.2-2% $4 bil. Large motors** (over 1,000 hp) 1-2% 2 bil. Power generators 0.5-1% 2 bil.

* After cooling costs, and assuming nationwide adoption ** These motors use about 30% of all electricity in the U.S.

Data: Energy Dept.

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