Renewable energy resources tidal

Renewable Energy Resources Energy resources that are naturally replenishing but flow-limited. They are virtually inexhaustible in duration but limited in the amount of energy that is available per unit of time. Renewable energy resources include biomass, hydro, geothermal, solar, wind, ocean thermal, wave action and tidal action. 

In the next 20 years, hydrokinetic power drawn from the earth s oceans and rivers could account for more than 10% of the world s global electricity market (Wood, 2010). The renewable energy resources from ocean wave, tidal stream, ocean and river current and ocean thermal resources are expected to be the major growth area over the next decade (Marsh, 2009). 

Renewable energy source Source of energy, such as wind, waves, tidal, or solar, that does not deplete any resource renewable energy sources are also nonpolluting. 

The choice of a renewable energy source to power a hydrogen fuel cell system will depend on the geography, climate and other resources of the location. I have chosen photovoltaics as the example power source for hydrogen production because it is available to more people than either geothermal, wind, or tidal. For a person without much technical skill, solar power is easier to implement than wind power. It is also less costly up front and not as dependent on location as the other RE power sources... 

We recognize the nuclear reactions of the sun as the main source of our energy and the crucial role of photosynthesis as the conversion process of solar light into fossil energy carriers and renewable biomass. We also recognize gravitational sources that result in tidal movement and the earth s thermal resources. 

Renewable sources are attractive for sustainability - e.g., wind, hydro, tidal, solar etc., and geographic factors will determine where each is appropriate. However, the sheer size of overall demand points to solar - the solar resource far outstrips all others. With a global usable energy flux of 120 PW, it is some 8,000 times the current total energy use, and able to supply growing demand as far ahead as we can see [6]. 

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