Usage of tidal power as power station

Tidal generation or tidal power these days become so important and researchable topic in the world, especially the countries which are placed near sea or ocean. Although the capital cost for this type of generation is higher than fuel burn energy, but not only the futures need more power but also by progressing of technology the costs of this type of generation will reduce in future. Furthermore this type of energy does not cause air pollution or radioactive hazards. In this paper, we explain the different types of generation and variety of generators which are used for this generation. Finally the energy generated by this method calculated.