Introduction It is a common knowledge to us all that almost, if not, all countries around the globe are having tremendous problems on energy sources, particularly because of the fast depletion of oil sources and continuous environmental degradation. This has serve as a wake up call for lots of researchers and scientist to move an extra effort and devote more of their time in looking for alternative ways or sources in the pursuit of helping each country to alleviate from the energy crisis that we are now having. There are several alternative sources that have been studied, and are still under further analysis. Among these are solar energy, nuclear energy, and wind energy. All of these have their uses, advantages and disadvantages. The use of these possible alternative energy sources have been analyzed and looked upon in order to find out whether or not if there really is a possibility that we humans, could lessen our dependency on oil and use these alternatives instead. And aside from the above-stated alternative source of energy, there is one more possible energy source that is being studied… and this is the tidal energy. This paper will divulge information about tidal energy as this aims to find out the strengths and weaknesses of this energy source when used greatly by humans. Tidal Energy – What is it? Tidal energy is a newly established alternative source of energy which is largely from lunar gravitation (Canadian Encyclopedia, 2008). This form of energy was generated from the idea of the gravitational forces coming from the moon, the sun and the earth which in turns creates movement such as the rising and lowering of water levels thereby creating tidal waves (Gorlov, 2001). The energy that is created by these tidal waves is mainly composed of two contributing sources of energy – the potential energy and the kinetic energy. Potential energy – as it is known to be the ‘stored energy’ is generated from the work done through the lifting of the mass of water above the ocean surface. Meanwhile, the kinetic or the action energy is the energy of the water in its capacity to do work by virtue of its velocity. Thus, the total tidal energy is equivalent to its potential and kinetic energy when combined (Gorlov, 2001). As tidal energy comes from the bodies of water it cannot be helped but to be compared with those from the river dams. It should be noted that to generally acquire or initiate tidal power, there is a need for gigantic structures and this should be built in areas where saltwater is abundant. It is of course hard to build such structures in saltwater environment with strong waves and/or rigors coming from time to time (Canadian Encyclopedia, 2008). Nevertheless, to built tidal power plants, the conventional structures of building it are still being followed, which follow the three structural and mechanical elements such as (Gorlov, 2001):  1. a water dam across the flow, which creates the artificial water basin and builds up a water head for operation of hydraulic turbines  2. several turbines coupled with electric generators which should be installed at the lowest point of the dam  3. hydraulic gates with in the dam to control the water flow in and out of the water basin behind the dam. Indeed, to create one tidal energy source may cost huge amount of money. Howe