I remember studying about osmosis in grade school. I thought 'what a really cool way for things in nature to create energy.' Well it appears humanity is now using it to generate green energy. Like wind and solar, it is not the end answer for our power consumption. However, with all the technologies combined we will free ourselves of oil. It is foolish to believe that ONE source of green energy will save us. It will take a culture change with many different sources of energy to do this. Take a look at the article. I think you will find it as interesting as I did.
World's first osmotic power plant opens in Norway