Can tidal energy be used as a power source?
There are many reasons why tidal power is not used across the world and won’t be used in the near future. There are only a few places in the world where the tidal range is great enough to justify the cost of building dams to harness this energy. Though the need for alternate power sources is not great enough for countries to use tidal power, France is the only country that successfully uses this power source. French engineers have noted that if the use of tidal power on a global level was brought to high enough levels, the Earth would slow its rotation by 24 hours every 2,000 years.