More Info →Main transmission lines from Mangahao Electric Power Station to Khandallah Substation

The Mangahao Power Station provides hydroelectric power and is situated near the town of Shannon. It serves Wellington, Horowhenua, Taranaki, Hawkes Bay, and the Wairarapa. After being delayed by the first world war construction began in late 1919 and the station opened in November 1924. The substation for Wellington was built at Khandallah.