Japan is asking Tokyo residents to conserve power, with unusually hot weather stretching the city’s grid as fears increase that the heat could last for longer. Electricity supply in the capital will continue to be tight Tuesday after households, businesses and utilities took steps Monday to help avoid any blackouts. The country’s government extended a power supply advisory for Tokyo which calls for curbs on consumption. Sony Group Corp. turned off lights illuminating its logo at some of its bases, convenience operator Seven & i Holdings Co. changed meal-preparation times and electronic store operator Yamada Holdings Co. switched off the majority of display televisions, lights and cooling units. The country’s grid coordinator ordered power sharing among regional utilities to supply Tokyo Electric Power Co. Those measures appear to be helping to ease pressure, and the city’s […]