Role Of Energy In 21st Century Essay

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2.0 Energy in the 21st Century
2.1 Rising energy needs of the world
Energy is an indispensable part of our everyday lives. All around us, energy is needed to perform daily tasks. Cooking, commuting, working and recreation all involve some forms of direct or indirect consumption of energy. As the world progresses, our energy consumption levels have increased tremendously and this can be attributed primarily to the exponential increase in the world’s global population and the increasing dependence we have on technology today.
The world has experienced an era of rapid progress and developments over the last century. There have been numerous breakthroughs and discoveries in sectors like technology, medicine and agriculture. These factors have …show more content…

Renewable energy is known to be a ‘cleaner’ form of energy as consumption of this kind of energy will not produce carbon based emission gases that contribute to global warming. Moreover, renewable energy sources are abundant in supply as they are self replenishing. However, there are still limitations associated with its use.
The first being its cost. Renewable energy plants need to be substantially large, much larger than a fossil fuel plant, in size in order to supply the needed amount of energy9. As such, a large capital amount is needed to set up a renewable energy plant. Besides this, the maintenance cost of such a plant can be quite expensive as well. As such, it would be more economically viable to stick to producing energy from fossil fuels.
The second limitation is the reliability of supply of renewable energy. Renewable energy supply is dependent on nature. Taking the example of a solar energy plant that is dependent on sunlight for production of energy. During rainy seasons or winter when the day is shorter, solar energy production may be limited. As our energy needs does not change, we cannot afford to be at the mercy of Mother Nature when it comes to the production of

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