Ocean thermal energy conversion (OTEC) is the oldest renewable energy technology you’ve never heard of. The idea for the technology, which exploits the differing temperatures in different layers of ocean water to create energy, is almost 150 years old, but is only now gaining traction for practical application. While OTEC will likely never take over the energy industry, it could become an essential source of energy for island nations and other coastal communities in the decarbonization era. London company Global OTEC plans to bring the…
