I July 2002 – Marubeni Corp. and Chubu Electric Power Co. agreed Friday to provide power to Japanese supermarket operator Uny Co. under a partial-supply arrangement made possible under power market liberalization laws introduced in March 2000.

Under such arrangements several power firms can supply a single firm. This will be the first application of this mode of power supply. The two companies will furnish electricity separately to three Uny stores in Aichi Prefecture. The three stores use 30 million kWh a year, of which Marubeni is expected to
supply half.

Marubeni will supply the stores via its hydroelectric plant in Nagano Prefecture. But since output of hydroelectric plans varies with rainfall, Chubu Electric will provide power when
Marubeni are unable to.