Lost in the woods near a stream, with some empty water bottles, wire, plastic plates, and a stepper motor, *and* you need to charge your smartphone? Try this. OK, so perhaps you wouldn't ever be ...

Never mind those ginormous dam-based hydroelectric generators -- we've got a much smaller version that you can actually use in your backyard. The Pico Hydroelectric Generator was installed within a ...

Water is still the most important source of renewable energy in Bavaria, Germany, accounting for some 33 percent of all renewable energy produced in the region, as showed by the Bavarian Energy Map.

A small hydro plant has been churning on the Kansas River since 1874. Having withstood over a century of production on a river that could be dubbed a prairie stream, the Bowersock Mills & Power Co.