in the same decade the department decided to proceed with construction of two new power stations that utilized the waters of the mangapapa and wairoa rivers, which had been designed by consultants mandeno chitty & bell in whom lloyd mandeno was a principal. approval to proceed was granted by the new zealand government in 1963 continual upon the station's output being equally shared with the tauranga electric power board. as a result, the tauranga joint generation committee was established in 1965 to develop, control and sell electricity generation. as a result of this initiative the original two planned stations, the lloyd mandeno power station was commissioned in 1972, and the ruahiti power station in 1981. in between these two dates an additional station, the lower mangapapa power station had been commissioned in april 1979. all three stations were operated as part of the kaimai hydro power scheme.