The Mangahao River’s wildly varying flow made the switchboard room’s operation particularly important. There was little or no storage capacity and frequent floods. Demand for electricity outstripped supply within two years of the station beginning operation. By this time work on extending water storage capacity had already begun.
Te whakamahi i tēnei tūemi
Permission of the Alexander Turnbull Library, National Library of New Zealand, Te Puna Mātauranga o Aotearoa, must be obtained before any re-use of this image.