For fossil fuel-dependent islands, ocean thermal energy offers a lifeline

Mongabay
Mongabay
5d ago • 10 views
Ocean thermal energy conversion (OTEC) is being explored as a clean energy solution for fossil fuel-dependent islands, with a pilot project in the Canary Islands. This technology could provide reliable, 24/7 power and reduce emissions.
For fossil fuel-dependent islands, ocean thermal energy offers a lifeline
A What happened
Ocean thermal energy conversion (OTEC) is emerging as a promising clean energy solution for tropical islands that depend on fossil fuels. A pilot project in the Canary Islands showcases OTEC's ability to generate reliable, 24/7 power by exploiting the temperature difference between warm surface seawater and cold deep ocean water. This technology has the potential to provide significant energy output, theoretically up to 3 terawatts globally. However, challenges such as high costs, investor reluctance, and environmental concerns, particularly regarding deep-water discharge, must be addressed. If successful, OTEC could help reduce emissions and provide energy stability for island communities, especially during storms. The project aims to demonstrate the viability of OTEC and pave the way for larger-scale implementations.
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Key insights

  • 1

    High energy potential: OTEC could theoretically generate over 3 terawatts of clean energy globally.

  • 2

    Environmental concerns: Deep-water discharge and ammonia use raise ecological risks that need careful management.

  • 3

    Financial barriers: Investor reluctance and high costs hinder large-scale OTEC project development.

  • 4

    Pilot project significance: The Canary Islands project aims to prove OTEC's reliability for tropical island energy needs.

Takeaways

Ocean thermal energy conversion presents a viable clean energy alternative for fossil fuel-dependent islands, but overcoming financial and environmental challenges is crucial for its success.

Topics

Climate & Environment Climate Change Sustainability Energy