what does tidal power do
Tidal power exploits energy drawn from the movement of ocean tides to produce electricity. There are two scenarios in which tides can be tapped for energy. The first is in changing sea levels. This phenomenon is responsible for the advancing and receding tides on shorelines.idal energy can be harnessed both in the sea, and in tidal rivers and estuaries. On some shorelines, water levels can vary up to 12 metres. It is this drastic change in water level that makes the first type of tidal energy â tidal barrages â possible.