兰吉波水电站因大量火山灰涌入造成水力机械严重磨损而被迫停止运行。新西兰电力公司和新西兰电力设计公司一起，对水轮机、导叶驱轴、夹板、调速机构、转轮密封、辅助设备以及压力钢管阀门等作了重大修改，提高了抗火山灰的性能。同时，对运行方式亦作了调整，即当河水中火山灰含量太高时停止运行。 Lanjibo Hydropower Station was forced to stop operating due to severe hydraulics wear caused by large volcanic ash influx. The New Zealand Power Company and the New Zealand Power Design Company have made significant changes to turbine, guide vane drives, cleats, governors, rotor seals, auxiliary equipment, and pressure pipe valves to improve the resistance to pozzolan. At the same time, the operating mode has also been adjusted, that is, when the volcanic ash content in the river is too high, it will stop operating.