The most representative landscape features are a number of large depressions, the Tiankengs, with nearly vertical walls and a depth and diameter typically more than 100 m each.

UNESCO: NATURAL SCIENCES

The heat exchangers and pipework required to make a 10MW plant already exist, but the 100MW facility will need a pipe that is not only 1km long (in order to reach the cold water at depth) but ten metres in diameter (in order to bring enough of that cold water to the surface).

ECONOMIST: Ocean heat may be used to generate electricity