Unlike tidal energy, Ocean Thermal Energy Conversion (OTEC) applies for much more regions on earth. The Caribbean, Africa, Middle East and Pacific and Indian oceans provide enough sea water temperature difference to ‘run’ the heat engine at acceptable thermodynamic efficiency.
The complexity of operating an OTEC plant in deep water (floating or fixed) compared to a land based plant lies in the transport of energy to shore and its vulnerable vertically suspended cold-water pipe.
Like other renewable energies OTEC involves high initial capital costs compared to the relatively low running costs for fossil fuel.
The regions in which OTEC is potentially available, makes it a true competitor to tidal and wave energy.
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