http://thinkprogress.org/climate/2015/03/12/3633029/floating-solar-in-california/
"Sonoma Clean Power in California’s wine country has announced that it will be building the largest floating solar array in the U.S., a project that’s scheduled to be completed in 2016 and will create enough energy to power 3,000 houses. The array will span six wastewater ponds filled with treated sewage."