During the period of development, electricity did not replace waterpower; water was adapted to new technology with hydroelectric turbines linked to generators
By the mid-twentieth century, however, most of the best waterpower sites in Maine had been developed, and utility companies relied increasingly on steam, which had the benefits of greater flexibility and reliability.
Steam stations, powered by oil, natural gas, or coal, could be built anywhere, could be easily expanded and upgraded, and were not affected by seasonal or year-to-year fluctuations in water supply.
Harris Station raised the level of Indian Pond by 20 feet, increasing the surface area from 2 to 5½ square miles.
The enlarged Indian Pond – some 2,500 acres of trees and brush were cleared and flooded – was flanked by campsites open to the public.
