hippieflavor:

Electricity Out Of The Blue - World’s First Osmotic Power Plant Opens in Norway : TreeHugger

“In its press release touting the event Statkraft says the prototype plant at Tofte (an hour south of Oslo) will have a “limited capacity” — 2-4 kilowatts initially with plans to increase it to 10 kW — and aims to construct a commercial osmotic power plant “within a few years’ time.”

Awesome.  So-called “Blue Energy” generates power by exploiting the hydrostatic pressure created when fresh water passes through a special membrane into salt water.