Sekiya Station: The Niigata Kotsu Co. opened a  line, electrified at 1,500 V DC, to Tsubame on the Yahiko Line between 1933 and 1934.
Sekiya Station: The Niigata Kotsu Co. introduced a power-laden route, powered by 1,500 V DC, from Sekiya Station to Tsubame on the Yahiko Line during the period of 1933-1934.