Tides could potentially be a large energy source, providing a huge percentage of the power used in some of the world’s largest countries. However, there are both advantages and disadvantages to using this system. By researching this topic of tidal power, you can actively support or oppose the building of these systems in your community as an alternative form of energy.

There are less than 25 sites in the world that are capable of producing tidal energy. Most of these sites do not currently have plants built at them, due to the opposition. However, as the world’s nonrenewable energy sources begin to run out, tidal power could become very important for us to consider. The process works by building barrages, or dams, across river estuaries, with tunnels that allow the tide to ebb and flow. As the water moves through the relatively small pipes, the power of the movement pushes turbines, which run huge electrical generators. This process changes the ecosystem considerably, because it creates a dam of water. Changes in the ecosystem provide the main fuel for opponents of tidal barrages. Although much energy could be produced this way, the environment would be changed for many miles, and some of the resources that birds, fish, and other animals need would become nonexistent. However, barrages could also help protect the shoreline from floods and storms. They also do not pollute the environment with chemicals or greenhouse gasses the way fossil fuels do.

Tidal power is reliable and predictable. Because the tide ebbs and flows at certain times of the day, operators know exactly how much power will be generated and when. A tidal power plant only produces power for about ten hours out of the day, so it is slightly inefficient when it comes to time, but this source of power is completely free once the barrages are built. They require little upkeep and no fuel or energy to run. Overall, it is a very dependable and consistent source of energy.

More research needs to be completed to decide if tidal power can efficiently provide the world with energy. Because of the limited number of sites in the world where this process would be possible, it is unlikely that it could ever be a main energy course. However, this kind of power is free and renewable, making it a good alternative to fossil fuels. If the effects of the ecosystem can be minimized, tidal power would be a good option for many counties.

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