Blue Energy: can we get all our future energy from salt water?
Forget Nuclear Fusion. There’s a future energy source that has been proven, piloted, and is accessible to any coastal nation. Salinity gradient power — more simply known as ‘blue energy’ — is an idea that has been kicking around since the 1950s. When the mouth of a river meets the sea, huge volumes of freshwater meet salty seawater. As the salinity of the seawater mixes into the freshwater, the two waters diffuse quickly to reach an equilibrium. This mixing process releases energy: as much, in fact, as the same volume of water falling from a 250…
