1. Ocean Energy

2. Ocean Thermal Energy Conversion Tidal Power Wave Power

3. OTEC Produces electricity Uses temperature differences between the surface and depths run heat engine. Highest potential: deep tropical waters like the Gulf of Mexico.

4. OTEC Second Law of Thermodynamics: Max eff. = (T high - T low )/ T low So, efficiency is pretty low.

5. Tidal Power – Dam or Barrage Dam or Barrage

6. Tidal Power – Annapolis Royal, NS

7. Tidal Power – Tidal Fence

8. Tidal Power – Tidal Turbine Similar to a wind turbine More power with smaller blades

9. Tidal Power – East River NY

10. Wave Power – Oscillating Water Column Off-shore and on- shore technologies Oscillating water column, wave swing, and tapchan are examples

11. Wave Power - Tapchan

12. Ocean Power – Disadvantages High capital costs Environmental impacts on sea life Sediment shifts Visual Pollution