There is evidence that people began harnessing the power of the tides before 900 CE. The principle is simple and obvious. Set a dam to capture water at high tide and hold it. When the tide is low, run the water through a sluice gate to drive a water wheel. Use the water wheel to power machinery, usually a flour mill.
It is an obvious step from this use to electrical generation, but there are important tidal energy pros and cons to take into account. Here we will explain the primary tidal energy benefits and disadvantages.
Tidal Energy Pros and Cons
Nearly free electricity with no pollution and minimal damage to the environment is certainly a dream that we can strive for. Spread the idea to your friends, and help build a movement to encourage research into this. Tidal energy pros and cons could be balanced to our long-term benefit with more research and experience. Get involved, and help us spread the word about this option.