DRAWBACKS OF TIDAL ENERGY

🔻 Strong ocean storms and salt water corrosion can damage the devices, which could increase the cost of construction to increase durability and/or cause frequent breakdowns.
🔻 Changes in tidal movement could substantially reduce efficiency of TSGs (tidal stream generator- machine that extracts energy from tides)
🔻 Sea life could be harmed by the blades in the open and Venturi turbines. The floor mounting of TSGs could also disrupt the habitats of different sea life and plants.
🔻 There are high initial costs of tidal stream generators and installation of underwater power lines.
🔻 The larger "footprint" of tidal stream generator farms could potentially reduce shipping and recreation areas.