The U.S. has 2,400 hydropower dams, many of which sport out-of-date generating equipment that is, well, generations old. That’s the bad news. The good news is, it all adds up to the potential for a massive energy efficiency upgrade program that could significantly boost U.S. hydropower generation without the monumental expense and environmental disruption involved in new dam construction. In fact, the first round of hydropower upgrades is already underway at an average cost of less than 4 cents per kilowatt-hour.
Via Hans De Keulenaer, Diedert Debusscher