TOKYO: Automatic doors are blocked at offices, subway escalators are disabled and much of the headquarters of Japan's biggest utility sits in semi-darkness - all evidence of how a 2½-year power crunch has forced companies to re-think energy use.
As expensive imported fuel has sent corporate electricity prices surging by more than a third since the Fukushima nuclear disaster, firms have scrimped and employees have grown used to sweaters in the winter and open collars in the summer.
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