Electricity from the ocean depths could power entire islands
In the tropics, the deep sea is cold and the sea surface is very warm. That temperature difference can be harnessed and turned into electricity. For more than a century, researchers have explored the idea of ocean thermal energy conversion. Theres nothing fundamentally new to the idea of extracting power from temperature differences. The challenge is finding the right spot, where the temperature differences make it worthwhile. At present, pilot plants are only able to generate a fraction of what a large wind turbine can....