As a preventative measure against large-scale blackouts, Tokyo Electric Power and Gas started implementing rolling blackouts yesterday in Tokyo, Saitama, Kanagawa, Chiba, Yamanashi, Gumma, Tochigi, Ibaraki, and Shizuoka Prefectures. A good deal of confusion ensued as the power outages did not proceed according to publicly announced schedules and commuters were stranded without train service in a number of instances.