Tokyo Electric Power Co., Asia's biggest nuclear operator, may raise capacity at existing reactors to meet emissions-reduction targets set by the new government.
Tepco, which gets about one-third of its power from nuclear energy, is studying a plan to "uprate" reactors, Managing Director Sakae Muto said in an interview Oct. 7.
The utility hasn't decided which of the 17 reactors it operates in Japan may be uprated or how much it will cost, he said. A similar upgrade of 17 reactors owned by Exelon Corp., the biggest U.S. atomic generator, may cost $3.5 billion, the company said in June.