Summary:
- Ocean thermal energy conversion (OTEC) is a process that generates electricity by using the temperature difference between warm surface water and cold deep ocean water.
- An Australian startup called Varley Group is working on developing OTEC technology, aiming to move it from a prototype to a commercial product.
- OTEC has the potential to provide a reliable and renewable source of energy, especially in tropical regions where the temperature difference between surface and deep ocean water is significant.