Energy and Environmental Security Essay Example | Topics and Well Written Essays - 2000 words

Energy and Environmental Security - Essay ExampleOver the old age there have been rising concerns with regard to the ability of fossil fuels, which constitute the main source of elan vital, in ensuring zilch aegis. In Australia for instance, gamy reliance on fossil fuels as the core source of cypher has been noted to be increasingly unviable since it is more economically marginal. This is because of the high dependence on foreign regimes which defy supply and pricing of oil and catalyst (Jones, 2009, pp.3). Such rising concerns have resulted to increased attention on other potential alternative sinew sources. This paper argues that renewable energy sources, to a large extent, atomic number 18 viable alternative sources of energy, and play a critical role in ensuring energy auspices. The world consumes round 13 trillion watts (terawatts, TW) of energy, with 85% of this representing energy from fossil fuel such as coal, gas and oil, plot of ground 2% of this representing r enewable energy forms such as wind, solar, geothermal, biomass, and hydro energy (Lewis, 2007, pp.808-809 Valentine, 20114573). Indeed, fossil fuels still remain the queer pins in energy supply due to various advantages such as handiness and high energy content that it possesses. However, fossil fuels have core disadvantages that make it a threat to both current and forthcoming energy security. Not only is it exhaustible, but it is also detrimental to the environment, and is undependable since countries have to depend on a few controlling regimes which regulate the supply of oil and gas (DiPeso, 2011, pp.97 Valentine, 2011). From historical evidence, oil and gas which currently form the major part of fossil fuel have had the tendency to fluctuate in prices with most countries ability to control such prices limited. This makes it in the dour term unreliable, unaffordable and inadequate (Riesz and Tourneboeuf, 2011). The high dependance on fossil fuels, and the fact that such fos sil fuels do not guarantee energy security to most of the worlds countries, has necessitated a look at various alternative sources that would ensure energy security. For most of the worlds countries, the response to energy risks posed by fossil fuels has been diversification of energy sources. Renewable sources of energy have been widely recognised as potential sources of energy and expected to make a bigger part in future energy generation portfolio to ensure energy security (Valentine, 2011). Renewable sources of energy ar often indigenous to a country hence tends to reduce high dependency on energy imports (Olz, Sims, and Kircher, 2007, pp.23). Hence, can be exploited locally where by the variations in availability and capacity of such energy sources in various regions, ensures that energy security is site specific, with regions increasingly worthy self sufficient. Although renewable energy sources incur higher capital costs in terms of evolution , installation and per unit c apacity, this high cost, to some extent, can be offset by the low to nothing cost of fuel over the life of the installed system which make renewable more competitive (Olz, Sims, and Kircher, 2007, pp.16). Furthermore, the long cited constraints of renewable energy sources such as intermittency and availability can be resolved done energy storage technologies which make energy available when needed and stores energy when it is available (Evans, Strezov, & Evans, 2012). There are six main