Chubu Electric Power Co. is negotiating with local companies that own large generators to buy surplus electricity after the recent closure of its Hamaoka nuclear power plant has significantly curtailed its supply capacity, sources said Tuesday.

Chubu Electric, in an effort to ride out the summer when power demand peaks, is in talks with firms that include machinery and steel maker Nippon Steel Corp., which has generators at its steel mill in Tokai, Aichi Prefecture, the sources said.

Three are about 100 companies that own power generating facilities with output capacities of at least 1,000 kilowatts in Chubu Electric's service area. , which comprises Nagano, Gifu, Shizuoka, Aichi and Mie prefectures, according to the Nuclear and Industrial Safety Agency.