Right now we are in an age of waste and careless use of our natural resources. Attempts are being made to make environmentally sound decisions and tidal energy is one of the ideas being researched. Tidal energy is a type of renewable energy, a concept that is growing in popularity. Due to the inevitable depletion of fossil fuels like oil and gas, infinite sources of energy like that from water are vitally important. Not only is this a renewable source but it is cheap, making it economically feasible.
Kinetic energy is contained in all moving objects, including that of waves and currents.
As a matter of fact, these two elements produce a vast amount of kinetic energy. This kinetic energy is then converted in a power station to electricity. The actual tidal movement of the oceans is a result of gravity. Historically, water has been used as a power source and was evident in the use of waterwheels. Waterwheels displaced water producing energy which was used to run mills.