This article compares the types of ocean wave energy conversion systems (OWECS), which itself is a type of Ocean energy conversion system (OECS).

 Type Efficiency Fabrication requirements Difficulty of production Durability Difficulty of repair Production cost Hazard to fish ? Sea snakes[1] Low ? ? ? ? medium no Swell spanners Very low ? ? ? ? medium-expensive no Oscillating buoys Low ? ? ? ? medium-expensive no Fixed platforms High ? ? ? ? medium-expensive no