The Portland (Oregon) Water Bureau is using a different kind of hydropower to generate electricity, tapping the energy of water flowing through its pipes. Online since January 2015, four 50 kW hydrogenerators make enough electricity to power up to 150 homes for a year.The bureau installed a turbine system from Lucid Energy, also of Portland, as part of a $150 million upgrade to its system. The 200 kW LucidPipe Power System will generate an average of 1,100 MWh per year.Dual functionBill Kelly, Lucid president and CEO, says the four turbines are installed across 50 feet of a 42-inch gravity-fed pipe
