Majority of the world's electric supply these days comes from the three main types of fossil fuels because they provide affordable rates. However, when the environment comes into the picture, the cheapest electricity provider is not necessarily the best. This article explains the reasons why.
Traditional Sources 1. Coal, oil, and natural gas are affordable and can easily generate power. 2. Their main disadvantage is that they have harmful emissions from the combustion of fossil fuels. These are the main causes of the increase in greenhouse gases which lead to global warming. 3. Global warming causes more disastrous calamities like the melting of polar ice caps, death of endangered animal and plant species, and the appearance of deadlier strains of diseases.
Renewable Options 1. Newer alternatives are more sustainable and friendly to the environment. 2. These sources come from natural elements such as the sun, wind, earth, and water. 3. These are cleaner than fossil fuels since the process of generating electric power does not involve harmful emissions of greenhouse gases. 4. They are also constantly replenished, so running out of supply is not a problem. 5. As of the moment, these are more expensive compared to the traditional, non-renewable types.
Popular Forms of Renewable Energy A. Solar 1. Photovoltaic cells absorb energy coming from the sun's rays. They liberate electrons from their atoms to produce electricity. 2. Lots of maintenance efforts are not required. 3. They are convenient since they can be acquired as solar panels that people can directly utilize in their homes. B. Geothermal 1. This originates from the heat given off by the earth's surface. 2. This heat is in the form of steam. 3. The steam powers a turbine contained in an electric generator. C. Wind 1. Wind converts kinetic to mechanical energy through the help of turbines. 2. The breeze revolves around a hub that is attached to a main shaft, making them look like wind mills in the past. 3. Smaller turbines can be used for small establishments and homes while larger ones are set up in power plants to provide electric supply for big communities. D. Hydroelectric 1. Hydroelectric forms are generated through water currents. 2. Strong current flows from water forms like rivers and waterfalls. These are led to turbines in a dam for power.
In order to make the cheapest electricity come from the cleanest providers, more investments are needed to create a positive shift in the market. The more sustainable suppliers arise, the cheaper their supplies get. It is always better to think about the future of our planet.
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