Producing electricity at estuaries using light and osmosis

Researchers are working on a technology to exploit osmotic energy -- a source of power that's naturally available at estuaries, where fresh water comes into contact with seawater. In a laboratory experiment, the team reproduced the real-world conditions that occur where rivers meet the sea (pH and salt concentration) and showed that, by shining light on a system comprising salt, water and a membrane three atoms thick, it was possible to optimize electricity production.

from All Top News -- ScienceDaily https://www.sciencedaily.com/releases/2019/05/190523111359.htm