Tidal power is a renewable energy source that harnesses the movement of tides and ocean currents to generate electricity. This type of energy has emerged as an exciting alternative in the search for sustainable and renewable energy sources to combat climate change.
Unlike other types of renewable energy such as solar or wind, tidal power is not dependent on weather conditions and can generate electricity on a constant basis.
There are two main approaches to harnessing tidal energy:
- 1. Tidal dams: through this method, dams are created in estuaries or coastal areas where there is a significant difference between high and low tides. When the tide rises, the gates of the dam are closed, capturing the water in the reservoir area. On the other hand, when the tide is low, the gates are opened and the water flows out to sea through turbine generators, generating electricity in the process.
- 2. Tidal stream turbines: with this other approach, turbines are installed on the ocean floor in areas with strong tidal currents. The turbines are driven by the ebb and flow of the tides in a similar way to wind turbines that harness the wind. The rotation of the turbines generates electricity that can be transported to shore via undersea cables.
What are the main characteristics of tidal energy?
- Predictability: tidal energy is predictable and follows regular tidal patterns, which facilitates the planning and management of electricity generation.
- Inexhaustible: the gravitational forces caused by tides are practically inexhaustible, which makes tidal energy a renewable and sustainable energy source in the long term.
- Environmental impact: although it is a clean source of energy, the construction of infrastructure such as dams can have environmental impacts, such as the alteration of marine habitats and changes in sedimentation.
- Strategic location: the efficiency of tidal energy depends on the geographical location and specific characteristics of the coast, so its implementation may be limited in some regions.
As technology advances and challenges are overcome, tidal energy has the potential to play a crucial role in the global energy matrix. Continued research and the implementation of pilot projects will help refine existing technologies and develop new innovative ways to harness the power of the ocean.
Learn more about renewable energy in the Univergy Solar news section.
