Thermal energy in the oceans creates water movement called currents. Look up "Convection Current". These currents can be used to create electricity using water turbines much like wind turbines are used in air.
Can be with wind turbines, solar panels, hydro schemes, biomass combustion, methane generated by refuse decay. Other schemes possible but not really commercial yet: wave power, tidal flows, tidal...
Ocean Thermal Energy Conversion (OTEC) uses the difference in temperature between surface seawater and deep down seawater to generate electricity. It is a clean, renewable energy source that has the...
By Nuclear fission,nucleus of aheavy,radioactive atom (eg-uranium,thorium,plutonium) is bombarded with low-energy neutrons to split into lighter nuclei.This generates tremendous amount of energy.This...