Ocean thermal energy conversion (OTEC) uses the temperature difference between cooler deep and warmer shallow or surface seawaters to run a heat engine and produce useful work, usually in the form of electricity.
Abiotic examples include things that are not alive but you will find in an ecosystem such as air, gases, water, sand, stones and rocks.
Contemporary definitions for abiotic factor Expand. noun. pertaining to any non-biological factors that play a role in an organism's environment; non-living environmental factors. Examples. A forest fire is an example of an abiotic factor.