Retrofitting Dams to Generate Electricity
Environmental opposition often means that new hydropower facilities are non-starters. But there may be a way around that: retrofitting existing dams.
Only 3 percent of the 80,000 dams in the United States are used to generate power, according to Norm Bishop, a vice president at MWH, a water engineering firm. They were built for other purposes, like flood control, recreation, irrigation or water storage.
Source: New York Times















