Under the aggravating war situation such as during the Manchurian Incident and World War Ⅱ, 'Ordinance for Electricity Distribution Control' came into force in 1941 as part of the economic control measures; moreover, Kyoto Dento was dissolved in April 1942 after assigning the electric generation and transmission division to Japan Electric Generation and Transmission Company Co., Ltd., and the electric distribution division to Kansai Electric Power Co., Inc., and Hokuriku Electric Power Company Co., Inc.
その後、満州事変・第二次世界大戦と戦局は次第に深刻な様相を見せはじめ、統制経済の一環として1941年「配電統制令」が施行され、京都電燈は、発送電部門を日本発送電（株）に、配電部門を関西電力（株）・北陸電力（株）にそれぞれ出資し、1942年4月をもって解散した。