The Quest for Renewable Energy from Our Oceans | Dr. Purnima Jalihal | TEDxNapierBridge

TL;DR

Ocean energy has the potential to provide renewable energy and address water stress caused by climate change through technologies like wave energy devices, hydrokinetic turbines, and ocean thermal energy conversion.

Transcript

when I say renewable energies what comes to your mind solar energy windmills and wind farms biomas yes you're right but how many of us can think of the oceans as a vast source of renewable energy clean energy from the oceans is yet to move move from the research Arena to the realm of commercialization now while all these other renewable forms that ... Read More

Key Insights

• 🌊 Ocean energy, including wave energy, marine currents, and ocean thermal energy conversion, has the potential to provide renewable energy and address water stress caused by climate change.
• 🌊 Powering desalination systems with ocean and other renewables can mitigate the impacts of climate change and provide clean water in remote coastal locations.
• 🌊 The low temperature thermal desalination (LTD) plant in India has been successful in generating portable water using the temperature gradient in the ocean.

Questions & Answers

Q: What are some examples of ocean energy technologies being developed?

Wave energy devices, hydrokinetic turbines, and ocean thermal energy conversion are some examples of ocean energy technologies being developed. These technologies can generate power from waves, marine currents, and the temperature gradient in the ocean.

Q: How can ocean energy be used to address water stress?

By powering desalination systems with ocean and other renewable energy sources, the energy needed for desalination can be provided sustainably. This can help alleviate water stress in coastal areas without worsening the impacts of climate change caused by fossil fuel energy.

Q: What is the significance of the low temperature thermal desalination plant in India?

The low temperature thermal desalination (LTD) plant in India, which has been operating since 2005, utilizes the temperature gradient in the ocean to generate 100,000 liters of portable water per day. It has improved the health of local Islanders and has served as a successful example of ocean-based desalination.

Q: How can ocean energy contribute to energy access in remote coastal locations?

Ocean energy technologies like wave energy devices and hydrokinetic turbines can provide small-scale power solutions in remote coastal locations with limited access to electricity. These technologies can meet the power requirements of such areas, reducing reliance on alkaline batteries and their environmental impact.

Summary & Key Takeaways

• Renewable energy sources like solar and wind have been implemented globally, but ocean energy is still in the research stage for commercialization.

• Water stress caused by climate change is a significant challenge, and current solutions like wastewater treatment and seawater desalination use fossil fuels for energy.

• Powering desalination systems with ocean and other renewable energy forms can mitigate the impacts of climate change and provide clean water in remote coastal locations.