Wave power fit worlds energy demand. Including pros & cons

https://www.betterworldsolutions.eu/portfolio/ceto-wave-power/

Wave Power development and converters for green energy

The earth is covered for 70% with oceans. This hughes seas could produce up to 80,000TWh of electricity per year.

Five times more than is needed right now. Worldwide we need cooperation because it is a technology challenge to explore this green power efficient. But if we can we have enough energy to cover the global demand for energy.

Ocean waves and tidal currents are one of the most untapped and important, clean, cheap, rich and reliable sources of renewable energy on the earth. The EU Commission’s 2030 Policy Framework for Climate and Energy recognizes that renewable energy has an important contribution to make in the period to 2030 and beyond.

The energy stored in the tides is certainly not a new concept. In fact, there is evidence that tidal barrage-style mills were in operation as far back as Roman times. These mills made use of the tide by trapping water in reservoirs when the tide was high, and then allowing the water to exit through waterwheels as the tide went out. The waterwheels provided the mechanical power to mill grain.

Rance Tidal Power Station France

This barrage concept was developed further in the 1960s with the building of the Rance Tidal Power Station in France. Operational since 1966, this was the first large-scale tidal power station in the world and remains one of the largest. Operating on the same principle as the Roman mills described above, the ‘waterwheels’ at La Rance are 24 massive turbines, each rated to produce 10 MW.

More wave power technology – Let’s cooperate for the best technology

Pros

  • Renewable. Requires no fuel
  • Emission-free
  • Reliable, a plant can last 100 years
  • High efficiency
  • Predictable output
  • Could potentially provide a storm surge barrier.
  • Environmental impacts are local, not global

Cons

  • Expensive to build
  • Very location specific (only 20 sites identified with high potential)
  • Locations are often remote
  • Barrages may restrict access to open water
  • Impact on fish, marine mammals and birds
  • Disrupts regular tidal cycles
  • Might decrease salinity in tidal basins
  • Mud flats (where many birds feed) adversely impacted

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Hayle Wave Hub, energy device

Hayle Wave Hub, energy device

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