Hawaii Electric Light and Maui Electric Join the Fold
In 1968, Hawaiian Electric Company purchased Maui Electric Company. Two years later, as construction flourished and the good economic times for Hawaii continued, Hawaiian Electric also acquired the Big Island's Hilo Electric Light Company (later to be known as Hawaii Electric Light Company).
Demand for power continued to escalate in the early 1970s, more than doubling over the previous decade. The average annual use by a residential customer household increased from 5,349 kilowatt hours a year to 8,108 kilowatt hours.