WAVE ENERGY : Wave power is the capture of energy of wind waves to do useful work – for example, electricity generation, water desalination, or pumping water. A machine that exploits wave power is a wave energy converter (WEC).

Wave Energy

1. WAVE ENERGY Harnessing Power from the Ocean PRESENTED BY : NAME – VIKAS CHANDRA KUMAR ENROLL – 2021BELE012 PRESENTED TO – DR. ASADUR RAHMAN DR. SHOEB HUSSAIN DR. KUSHAL JAGTAP

2. Content Layout Introduction to Wave Energy . WEC – Wave Energy Converter . Types of WEC . Advantages of Wave Energy Challenges of Wave Energy Real-World Examples and Applications Conclusion

3. What is Wave Energy ? Energy harnessed from the movement of surface waves in oceans. A form of kinetic energy caused by wind blowing over water. Why is Wave Energy Important? Oceans cover over 70% of the Earth's surface, providing vast potential. Wave energy is renewable, sustainable, and can complement other forms of renewable energy like wind and solar.

4. Wave Energy Converter Wave power  is the capture of energy of  wind waves  to do useful  work  – for example,  electricity generation ,  water desalination , or  pumping  water. A machine that exploits wave  power  is a  wave energy converter  ( WEC ).

5. Types of Wave Energy Converters Oscillating Water Columns (OWC) Point Absorbers Attenuators Overtopping Devices

6. Oscillating Water Columns (OWC) Description: Structures that use the rise and fall of water in a chamber to push air through a turbine. How it works: Waves enter the chamber, changing water levels and driving air to turn a turbine, generating electricity. Example: Mutriku Wave Power Plant (Spain).

7. Point Absorbers Description: Buoy-like devices that move with the vertical motion of waves. How it works: Converts the up-and-down motion of waves into mechanical energy, which is then converted into electricity. Example: CETO (Australia).

8. Attenuators Description: Long, floating devices aligned parallel to waves. How it works: Flexes as waves pass along its length, converting this motion into energy. Example: Pelamis Wave Energy Converter (Scotland).

9. Overtopping Devices Description: Capture wave energy by allowing waves to flow over a structure and into a reservoir. How it works: Water flows into the reservoir and is released to drive turbines, similar to hydroelectric dams. Example: Wave Dragon (Denmark).

10. Advantages of Wave Energy Reliable and Predictable: Ocean waves are more consistent than solar or wind energy. Predictions of wave energy patterns can be made days in advance. High Energy Density: Waves have a higher energy density compared to other renewable sources. Minimal Carbon Footprint: Wave energy generation emits no greenhouse gases after installation. Complementary to Other Renewables: Can be combined with wind and solar energy to provide a more stable energy grid.

11. Challenges of Wave Energy High Capital Costs : Building and installing wave energy converters is expensive due to harsh ocean conditions and the need for robust materials. Environmental Impact: Marine ecosystems might be disrupted by WECs. Noise pollution and interference with marine navigation are possible issues. Technological Immaturity : The technology is still in its early stages of development. Efficiency needs to improve before it can become widely implemented. Geographical Limitations: Suitable locations for wave energy are limited to coastal areas with high wave activity.

12. Real-World Examples and Applications Pelamis (Attenuator) – L ocated in Scotland , generating 750 kW of power by each unit. Mutriku Wave Power Plant – Located in Spain , with capacity 296 kW. Wave hub – Located in Cornwall , United Kingdom . CETO (Point Absorber) : Located in Garden island, western Australia .

13. Future of Wave Energy Technological Advancements : Future WECs will be more efficient, durable, and adaptive with smart control systems and advanced materials. Cost reduction : Scaling up production and hybrid systems with wind or tidal energy will reduce costs. Grid Integration: Improved energy storage and grid integration will ensure reliable renewable energy from waves. Environmental Benefits: Wave energy offers a low-impact, renewable energy source that can reduce carbon emissions while minimizing disruption to marine ecosystems.

14. Conclusion Wave energy has the potential to become a major player in the global renewable energy market. While there are challenges, the environmental and long-term economic benefits are immense. With technological advancements, wave energy can provide a sustainable and reliable energy source. Continued investment and innovation are key to unlocking the full potential of wave energy and creating a greener future.

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